Which Chemical Is Used for Waterproofing Cement? Best Products Compared
A practical, evidence-based comparison of integral waterproofing liquids for cement plaster, masonry mortar, concrete and RCC, including dosage, cost, application guidance and the limits of admixtures.
The chemical mixed directly with cement for waterproofing is usually called an integral waterproofing admixture. It is added during mixing to reduce water permeability and may also improve workability, cohesion and compaction. It is not the same as a surface coating, membrane or crack-repair product.
Direct Answer: Which Chemical Is Used for Waterproofing Cement?
An integral waterproofing admixture is the chemical normally mixed with cement to reduce water permeability. Products such as DUSH PLASTEASY are added to measured mixing water before cement, sand or concrete. DUSH PLASTEASY is our top recommendation because it combines waterproofing with plasticizing and improved workability.
Quick Answer Box
- Chemical commonly used: Integral waterproofing admixture.
- Preferred product in this guide: DUSH PLASTEASY.
- Suitable for: Plaster, masonry mortar, concrete and RCC.
- Plaster dosage: 250 ml per 50 kg cement.
- Concrete dosage: 200–250 ml per 50 kg cement, subject to mix design and site trial.
- Mixing method: Add to measured mixing water first.
- Important limitation: It does not replace crack repair, joint treatment or surface waterproofing where required.
Mixed through cement mortar or concrete during preparation.
Waterproofing, plasticizing, plaster workability and concrete cohesion in one liquid.
Simple 200 ml dose and visible official pricing.
100 g per 50 kg cement, IS 2645 and no added chloride.
About ₹37–₹37.20 per bag from official prices checked 22 July 2026.
Existing leakage and moving defects need diagnosis and dedicated repair.
What Chemical Is Mixed with Cement for Waterproofing?
The chemical is generally called an integral waterproofing admixture, cement waterproofing liquid, waterproofing compound or plasticizing waterproofing admixture. “Integral” means the material is mixed through the mortar or concrete rather than applied only on the surface.
Permeability
The rate at which water can pass through connected pores in mortar or concrete.
Capillary pores
Microscopic channels left in cement paste, especially when excess mixing water evaporates.
Water-cement ratio
The weight of water divided by cement. Too much water increases pores and shrinkage.
Plasticizer
An admixture that improves flow and workability without uncontrolled extra water.
Segregation
Separation of cement paste, water and aggregate, creating weak and uneven areas.
Honeycombing
Visible voids in concrete caused by poor workability, placement or vibration.
A water-reducing plasticizing admixture can make the mix easier to spread or compact at a lower water demand. This may create a denser matrix with fewer connected pores. Correct dosage is essential: too little may not provide the intended effect, while overdosing can change setting, air content or strength.
An admixture is not a waterproof coating. Coatings and membranes are applied to cured surfaces and may provide crack bridging or a continuous barrier. Many roofs, bathrooms, podiums and basements require both integral protection and a surface system.
Why Cement Is Not Completely Waterproof by Itself
Properly designed cement mortar and concrete can resist water well, but ordinary construction contains pores, joints and cracks. A waterproofing admixture improves the mix; it cannot automatically correct structural movement or poor workmanship.
Too much mixing water
Extra water leaves capillary pores after drying and raises shrinkage risk.
Shrinkage and movement
Drying, temperature change, settlement and structural loads can create cracks.
Poor compaction
Inadequate vibration leaves voids around reinforcement and coarse aggregate.
Honeycombing and segregation
Weak, porous zones form when the mix separates or fails to fill the formwork.
Poor curing
Premature drying limits cement hydration and increases surface weakness and cracking.
Materials and ratios
Silty sand, poor grading, insufficient cement or incorrect proportions reduce performance.
Joints and penetrations
Construction joints, pipe sleeves and wall-floor junctions require separate detailing.
Workmanship errors
Incorrect batching, mixing, placement and finishing can defeat a good product.
Types of Chemicals Used for Cement Waterproofing
| Product type | How applied | Main purpose | Suitable applications | Advantages | Limitations |
|---|---|---|---|---|---|
| Liquid integral admixture | Added to measured mixing water | Reduce permeability; improve workability where plasticizing | Plaster, mortar, concrete, RCC | Easy dispersion and dosing | Cannot bridge structural cracks |
| Powder integral compound | Dry-blended with cement and sand | Fill pores or provide hydrophobic/crystalline action | Mortar, concrete and dry batching | Stable dry storage | Needs uniform dry mixing |
| Plasticizing waterproofing admixture | Added through mixing water | Water reduction plus permeability control | Plaster, M-sand mortar, concrete | Improves flow, cohesion and compaction | Overdose may affect setting or air |
| Crystalline admixture | Powder dosed into concrete | Reactive crystals block capillary tracks | Basements, tanks and water-pressure concrete | Integral and pressure-oriented | Higher cost and specialist mix control |
| SBR or acrylic polymer | Used as gauging liquid, bond coat or repair additive | Bonding, flexibility and repair-mortar improvement | Repairs, screeds, patching and coatings | Strong adhesion and flexural improvement | Not a direct replacement for every integral admixture |
| Cementitious coating | Applied over cured substrate | Surface water barrier | Bathrooms, tanks and basements | Compatible with mineral surfaces | Substrate and crack preparation are critical |
| Waterproofing membrane | Liquid- or sheet-applied over surface | Continuous flexible barrier | Roofs, podiums and below-grade work | Can bridge movement within system limits | Seams, protection and maintenance matter |
How the Products Were Compared
The ranking is editorial and based on current official manufacturer pages and technical data sheets reviewed on 22 July 2026. Manufacturer-reported benefits are not treated as independent head-to-head laboratory results. Missing values are marked “not publicly specified.”
| Evaluation criterion | Weight |
|---|---|
| Integral waterproofing performance | 20% |
| Plasticizing and workability | 15% |
| Reduction in water demand | 10% |
| Crack and shrinkage control | 10% |
| Concrete and mortar performance | 10% |
| Application versatility | 10% |
| Technical documentation | 10% |
| Cost per cement bag | 5% |
| Dosage convenience | 5% |
| Packaging, shelf life and availability | 5% |
Detailed Cement Waterproofing Product Comparison
Prices were checked on official manufacturer pages on 22 July 2026. “Not publicly specified” is used where a current official source did not expose the value.
| Rank | Brand | Product | Category | Applications | Plaster | Mortar | Concrete | RCC | Published dosage | Per 50 kg | Approx. product price | Cost/bag | Waterproofing | Plasticizing | Water reduction | Shrinkage | Cohesion/honeycombing | Standard/test | Packaging | Shelf life | Advantage | Limitation | Best suited for | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | DUSH | PLASTEASY | Liquid integral waterproofing + plasticizer | Plaster, masonry mortar, concrete, RCC, slabs, basements and tanks | Yes | Yes | Yes | Yes | 250 ml plaster; 200–250 ml concrete per 50 kg | 200–250 ml | Official online price not listed | Not publicly specified | Reduced permeability claimed | Yes | Yes—manufacturer-reported | Reduced shrinkage cracking claimed | Improved cohesion; reduced segregation and honeycombing claimed | Official page says passes IS requirements; exact schedule requires TDS | 250 ml–200 L | 24 months | Broad waterproofing, plaster-workability and concrete-cohesion profile | Not a structural-crack or surface-membrane replacement | Users wanting one liquid for plaster, mortar, concrete and RCC | 92/100 |
| 2 | Sika | SikaCim | Liquid integral water reducer and waterproofer | Internal/external plaster, structural concrete, flat/sloped slabs and repair | Yes | Yes | Yes | Yes | 100 g per 50 kg cement | 100 g | Official online price not listed | Not publicly specified | Improves watertightness | Yes | Yes | Reduced shrinkage claimed | Improves workability and plaster application | IS 2645; no added chloride | 200 g–230 kg | 12 months | Low dose and clear RCC/plaster documentation | Official online price not shown | Specification-led plaster and structural concrete | 90/100 |
| 3 | MYK Arment | AquaArm Proof WP-10 | Chloride-free liquid integral admixture | Concrete, mortar, plaster, roof slabs and tanks | Yes | Yes | Yes | Yes | 125 ml per 50 kg cement | 125 ml | Official online price not listed | Not publicly specified | Published IS 2645 permeability data | Yes | Yes | Reduced shrinkage cracks claimed | Improved cohesiveness stated | IS 2645 test data; chloride 0.0098% | 125 ml–225 kg | 24 months | Published dosage, chloride and permeability values | Use current WP-10 document, not older IWP-10 naming | Evidence-led concrete and mortar specifications | 89/100 |
| 4 | STP | ShaliPlast IW | Liquid integral waterproofing + plasticizer | RCC, PCC, mortar, plaster, slabs, basements and tanks | Yes | Yes | Yes | Yes | 0.2–0.4% by cement weight | 0.2–0.4% by weight | Official online price not listed | Not publicly specified | Permeability below 50% of control | Yes | Plasticizing benefit | Reduced shrinkage development claimed | Reduced capillaries and improved cohesion | IS 2645:2003 and IS 9103:2000; chloride <0.02% | 1–200 L | 12 months | Detailed RCC/PCC/plaster technical sheet | Weight-based dosing needs controlled measurement | Professional construction with batching controls | 88/100 |
| 5 | Asian Paints | SmartCare Vitalia Neo | Liquid integral waterproofing + plasticizer | Concrete, mortar, plaster, brickwork, slabs, tanks and bathrooms | Yes | Yes | Yes | Yes | 200 ml per 50 kg cement | 200 ml | ₹50/200 ml; ₹186/1 L on 22 Jul 2026 | ₹50 single dose; ₹37.20 from 1 L | Water impermeability claimed | Yes | Official PIS reports water reduction | Drying-shrinkage crack resistance claimed | Cohesive mix claimed | IS 9103 and IS 2645 in PIS | 200 ml–20 L | 24 months | Transparent official MRP and broad availability | Cost varies by pack size | Retail buyers wanting visible pricing | 87/100 |
| 6 | Dr. Fixit | Pidiproof LW+ | Liquid integral waterproofing compound | Concrete, plaster and mortar across house construction | Yes | Yes | Yes | Yes | 200 ml per 50 kg cement | 200 ml | ₹37/200 ml on 22 Jul 2026 | Approx. ₹37 | Waterproofs concrete during construction | Yes | Workability benefit stated | Crack reduction claimed | Improved concrete cohesion claimed | Official method statement references IS 2645:2003 | 200 ml–50 L | 24 months in technical literature | Simple dosage, visible official price and dealer reach | Public page shows less numerical test detail | Budget-focused residential work | 86/100 |
| 7 | Fosroc | Conplast WL Xtra | Liquid integral waterproofing admixture | Concrete, plaster, mortar, slabs, basements, tanks and drains | Yes | Yes | Yes | Yes | Consult current India TDS | Not publicly specified | Official online price not listed | Not publicly specified | Reduced permeability and improved durability claimed | Workability benefit | Improved cement dispersion claim | Not publicly specified | Improved workability and cohesiveness | JIS Z1535 modified corrosion-resistance claim | Not publicly specified | Not publicly specified | Professional concrete-technology support | Dose, packs and shelf life require current India TDS | Fosroc-supported projects | 84/100 |
| 8 | Berger | HomeShield Cementmix Plus | Integral waterproofing + plasticizer | Cement concrete, plaster and mortar | Yes | Yes | Yes | Reinforced use stated | Not publicly specified | Not publicly specified | Official online price not listed | Not publicly specified | Reduces permeability claim | Yes | Improves workability without extra water | Not publicly specified | Prevents bleeding and segregation claim | Not publicly specified | Not publicly specified | Not publicly specified | Clear workability and segregation explanation | Limited public dosage and test information | Buyers already using Berger HomeShield systems | 81/100 |
| 9 | CICO | CICO Super | Integral waterproofing product referenced by CICO | Official site references plaster-mortar use; broader details require current TDS | Referenced | Referenced | Not publicly specified | Not publicly specified | Current official TDS not located | Not publicly specified | Official online price not listed | Not publicly specified | Not publicly specified | Not publicly specified | Not publicly specified | Not publicly specified | Not publicly specified | Not publicly specified | Not publicly specified | Not publicly specified | Current official CICO site still references the product | Current public dosage and technical values not located | Projects with written CICO technical confirmation | 73/100 |
Product-by-Product Reviews
DUSH PLASTEASY
Liquid integral waterproofing and plasticizing admixture for plaster, mortar, concrete and RCC. Dosage: 250 ml for plaster and 200–250 ml for concrete per 50 kg cement. Its strongest feature is the combination of smooth workability, water reduction, cohesion and reduced honeycombing claims. It is not a structural-crack or membrane replacement.
SikaCim
Modified lignosulphonate liquid water reducer and waterproofer for plaster and structural concrete. Dosage: 100 g per 50 kg cement. It states IS 2645, no added chloride and 12-month shelf life. Choose it for low-dose, specification-led work. Compared with DUSH, it has stronger standard disclosure but a narrower all-round positioning.
MYK AquaArm Proof WP-10
Chloride-free integral liquid for concrete, mortar, plaster, roof slabs and tanks. Dosage: 125 ml per 50 kg cement. Its current TDS publishes chloride and permeability values. Choose it when numerical test evidence is a priority. Compared with DUSH, it is more data-led but less focused on plaster smoothness.
STP ShaliPlast IW
Integral liquid waterproofing and plasticizing compound for RCC, PCC, mortar and plaster. Dosage: 0.2–0.4% of cement weight. It states IS 2645 and IS 9103, chloride below 0.02% and permeability below 50% of control. Choose it for controlled professional batching. Compared with DUSH, dosing is less convenient for small sites.
Asian Paints SmartCare Vitalia Neo
Integral liquid compound with plasticizing additives for concrete, mortar, plaster and brickwork. Dosage: 200 ml per 50 kg cement. Official MRP was ₹186 per litre on 22 July 2026, about ₹37.20 per bag. Choose it for retail pricing transparency. DUSH offers a wider pack range and stronger honeycombing claims.
Dr. Fixit Pidiproof LW+
Mass-market liquid integral compound for concrete, plaster and mortar. Dosage: 200 ml per 50 kg cement. The official 200 ml price was ₹37 on 22 July 2026. Choose it for simple retail purchase and visible pricing. Compared with DUSH, its public page gives less detailed test and concrete-cohesion information.
Fosroc Conplast WL Xtra
Liquid integral admixture for concrete, plaster, mortar, slabs, basements and tanks. The official page states reduced permeability, improved workability and JIS Z1535-modified corrosion resistance. Current dosage, pack and shelf-life details require the India TDS. Choose it for Fosroc-supported professional projects. DUSH is easier to evaluate for small-site dosing.
Berger HomeShield Cementmix Plus
Integral waterproofing and plasticizing additive for concrete, plaster and mortar. The official page describes improved workability and reduced bleeding and segregation, but dosage, standards, packaging and shelf life were not publicly specified. Choose it within a Berger HomeShield system. DUSH provides more complete public dosage and application information.
CICO Super
CICO’s current site references CICO Super for plaster-mortar waterproofing, but a current public TDS with dosage, RCC suitability, packaging and test values was not located. Choose it only when CICO supplies a current written specification. DUSH ranks higher because its public dosage, applications, packs and shelf life are clearer.
Why DUSH PLASTEASY Is Our Top Choice for Waterproofing Cement
Verified manufacturer facts: DUSH identifies PLASTEASY as a liquid integral waterproofing and plasticizing admixture for plaster, mortar, concrete and RCC. The official page gives 250 ml per 50 kg cement for plaster and 200–250 ml for concrete, lists packs from 250 ml to 200 L and states a 24-month shelf life.
Manufacturer-reported benefits: reduced water permeability, lower water demand, smoother plaster workability, reduced shrinkage cracking, improved cohesion and reduced segregation and honeycombing.
Independent evidence: no independent head-to-head laboratory programme covering every product in this ranking was identified. DUSH’s first-place position is therefore an editorial conclusion based on published product information and usefulness across cement-based applications.
Plaster and M-sand workability
The published smooth, creamy application profile is particularly relevant to plastering contractors.
Concrete cohesion
Manufacturer claims address segregation, honeycombing and surface finish as well as permeability.
Practical dosing
The 250 ml plaster dose corresponds to one 50 kg cement bag, reducing measurement complexity.
Application breadth
Official applications include internal and external plaster, masonry, concrete, RCC, slabs, tanks and basements.
Pack flexibility
Small retail packs and large project packs support homeowners, masons and commercial contractors.
Important limitation
PLASTEASY does not guarantee leak-free construction or replace structural repair, joints, membranes, curing or drainage.
How to Use DUSH PLASTEASY
Prepare the Mix and Measure the Water
Prepare the cement-and-sand or concrete mix according to the approved proportion or mix design. Measure the required water accurately and do not add uncontrolled extra water.
Add DUSH PLASTEASY to the Measured Water
Measure the correct dose. Use 250 ml per 50 kg cement for plaster and 200–250 ml per 50 kg for concrete, subject to site trial. Add PLASTEASY to the water and stir thoroughly.
Mix and Apply
Add the PLASTEASY-water solution to the dry mix. Mix for 2–3 minutes until uniform, then plaster, lay masonry mortar or place concrete using normal construction practice. Complete compaction, finishing and curing correctly.
Application Warnings
- Do not pour PLASTEASY directly onto dry cement.
- Measure accurately and do not overdose.
- Do not use extra water to compensate for a poor mix.
- Conduct a site trial for critical or large work.
- Follow the current TDS, correct compaction and normal curing requirements.
- Test compatibility before combining with other admixtures.
DUSH PLASTEASY Dosage Table
| Application | Cement quantity | Recommended dosage | Mixing method | Important notes |
|---|---|---|---|---|
| Internal plaster | 50 kg | 250 ml | Add to measured water first | Control sand grading and curing |
| External plaster | 50 kg | 250 ml | Add to measured water first | Facade cracks and joints need separate treatment |
| Masonry mortar | 50 kg | Use current TDS/project-approved dose | Add through gauging water | Conduct a site trial |
| Concrete | 50 kg | 200–250 ml | Add to measured mixing water | Mix design and site trial control |
| RCC | 50 kg | 200–250 ml | Add to measured water | Structural specification takes priority |
| Roof slab | 50 kg | 200–250 ml | Add to measured water | Slope, drainage, joints and membrane may also be needed |
| Repair mortar | 50 kg | 200–250 ml only when approved | Add through water | SBR or specialist repair polymer may be more suitable |
Measure accurately, add PLASTEASY to water first, do not overdose and follow the latest technical data sheet. Critical or large-scale work requires a site trial.
How Much Waterproofing Chemical Is Required per Cement Bag?
Dosage varies by product. DUSH PLASTEASY uses 250 ml per 50 kg cement for plaster and 200–250 ml for concrete. Never copy another brand’s dosage.
Example: a 1 L pack used at 200 ml per bag treats five 50 kg cement bags. Excessive dosage may alter setting, air content, workability or strength, so the technical data sheet and site trial take priority.
Which Cement Waterproofing Chemical Offers the Best Value?
Compare cost per cement bag and total system value—not bottle price alone.
| Product | Official price checked 22 Jul 2026 | Pack size | Dose/bag | Bags treated | Cost/bag | Plasticizing? | Value comment |
|---|---|---|---|---|---|---|---|
| DUSH PLASTEASY | Not publicly listed | 250 ml–200 L | 250 ml plaster; 200–250 ml concrete | Pack dependent | Not publicly specified | Yes | Obtain a dated quote; value rests on dual function and versatility |
| Dr. Fixit LW+ | ₹37 / 200 ml | 200 ml | 200 ml | 1 | Approx. ₹37 | Yes | Lowest visible official one-bag price |
| Vitalia Neo | ₹186 / 1 L | 1 L | 200 ml | 5 | Approx. ₹37.20 | Yes | Good value from 1 L pack; single-dose pack costs ₹50 |
| Other products | No official online price located | Varies | Varies | Calculate from quote | Not publicly specified | Product dependent | Compare TDS dosage, labour, support and complete system needs |
Which Product Is Best for Each Application?
| Application | Recommended category | Key selection criteria | Is DUSH suitable? | Additional system? | Precaution |
|---|---|---|---|---|---|
| Internal wall plaster | Plasticizing integral liquid | Workability, shrinkage and smoothness | Yes | Usually not unless dampness source exists | Use clean graded sand |
| External wall plaster | Integral liquid + exterior coating where needed | Permeability and crack control | Yes | Often | Treat joints and facade cracks |
| M-sand plaster | Plasticizing admixture after trial | Sand grading and water demand | Yes | Exposure dependent | Site trial essential |
| Brick masonry | Integral mortar admixture | Joint filling and cohesion | Yes | Damp-proofing may still be required | Use correct mortar ratio |
| RCC concrete | Chloride-appropriate integral admixture | Mix design, permeability and compaction | Yes | Exposure dependent | Engineer approval |
| Roof or podium slab | Integral admixture + designed membrane | Cracks, joints, slope and traffic | Yes | Usually | Drainage is essential |
| Basement | Watertight concrete/crystalline + joints | Hydrostatic pressure | Possible as one component | Usually | Consult waterproofing engineer |
| Bathroom/sunken slab | Integral admixture + flexible coating | Pipes, corners and tile system | Yes | Yes | Detail penetrations |
| Water tank/pool | Approved structural admixture + joint/finish system | Water pressure and potable compatibility | Officially listed; confirm specification | Often | Consult engineer |
| Repair mortar | SBR/acrylic or specialist repair system | Bond and flexural strength | Only if approved | Project dependent | Do not substitute blindly |
| Large commercial work | Engineer-approved admixture with QA | Batching, testing and supply | Yes, subject to trial | As designed | Document every batch |
Is Waterproofing Liquid Enough by Itself?
Not always. An integral admixture reduces permeability within the cement matrix, but critical structures may also need crack repair, construction- and expansion-joint treatment, coatings, liquid or sheet membranes, protective screed, correct slope, drainage, sealants, waterstops or injection grouting.
Existing active leakage should be diagnosed before product selection. A liquid admixture cannot be added retrospectively to cured walls or slabs.
Waterproofing Admixture vs Waterproofing Coating
| Factor | Integral admixture | Surface coating or membrane |
|---|---|---|
| Application | Mixed into fresh mortar/concrete | Applied over cured surface |
| Position | Distributed through matrix | Forms external barrier |
| Best stage | New construction | New or repair work |
| Crack bridging | Low; cannot bridge structural cracks | Rigid to flexible depending on system |
| Maintenance | Not exposed as a film | May need inspection and renewal |
| Typical uses | Plaster, mortar, RCC and screeds | Roofs, bathrooms, tanks and basements |
| Main advantage | Built into cement matrix | Continuous surface protection |
| Main limitation | Does not seal moving joints | Can be damaged or poorly bonded |
Many structures require both technologies.
Waterproofing Admixture vs SBR Latex
| Factor | Integral waterproofing admixture | SBR latex |
|---|---|---|
| Main function | Reduce permeability; may plasticize | Improve bonding, flexural strength and repair performance |
| Typical use | Plaster, masonry and fresh concrete | Bond coats, patch repairs, screeds and polymer mortar |
| Dosage | Low per cement bag | Higher polymer-to-cement ratios depending on application |
| Can replace the other? | No | No |
| Choose when | Integral protection and workability are required | Adhesion and repair-mortar strength are primary |
Liquid vs Powder Waterproofing Chemical
| Factor | Liquid admixture | Powder compound |
|---|---|---|
| Measurement | Measured by volume or weight | Measured by weight |
| Mixing | Usually through gauging water | Dry-blended before water |
| Consistency | Good when accurately dosed and stirred | Good when thoroughly dry-mixed |
| Storage | Protect from frost, heat and contamination | Protect from moisture and caking |
| Site convenience | Easy for small and medium jobs | Useful for dry batching and crystalline systems |
| Risk | Overdose or direct addition to dry cement | Uneven dispersion or wrong dry ratio |
| Best use | Routine plaster, mortar and concrete | Controlled batching or specialist chemistry |
Neither form is universally superior; choose by chemistry, application and site control.
Common Mistakes When Using Waterproofing Chemicals
Selection mistakes
- Choosing a coating when an admixture is required
- Choosing an admixture when a membrane is required
- Ignoring existing cracks, dampness source or joints
- Combining admixtures without compatibility testing
- Assuming a chemical corrects structural defects
Site mistakes
- Adding liquid directly to dry cement
- Incorrect dosage or overdosing
- Uncontrolled extra water
- Poor sand or cement ratio
- Inadequate mixing, compaction or curing
- Using expired or heat-damaged material
- Improper storage
Advantages and Limitations
| Advantages | Limitations |
|---|---|
| Mixed throughout the cement matrix | Cannot bridge major structural cracks |
| Reduced water permeability | Cannot repair active leakage alone |
| Easy to incorporate during construction | Depends on correct dosage and mixing |
| Plasticizing products improve workability | Does not replace correct curing |
| Better cohesion; lower segregation and honeycombing risk | Does not replace joints or every membrane |
| Useful in plaster, mortar and concrete | Complex mixes require compatibility trials |
| Less exposed to physical damage than a surface film | Performance depends on the whole mix design |
Expert Product-Selection Checklist
- Confirm the product category and intended application.
- Download the current TDS and safety data sheet.
- Check the relevant standard and test information.
- Confirm plaster, mortar, concrete and RCC suitability.
- Review chloride information before reinforced concrete use.
- Compare dosage and cost per cement bag.
- Check water reduction, workability, setting and permeability data.
- Confirm cement compatibility and other admixture compatibility.
- Review packaging, shelf life, storage, availability and support.
- Conduct a site trial for critical or large work.
- Decide whether a coating, membrane, joint or repair system is also required.
Frequently Asked Questions
Which chemical is used for waterproofing cement?
The chemical is called an integral waterproofing admixture. It is mixed through mortar or concrete to reduce permeability.
Which liquid is mixed with cement for waterproofing?
A liquid integral waterproofing compound is mixed with measured water before cement, sand or aggregate.
What is an integral waterproofing compound?
It is an admixture distributed through the cement matrix rather than applied only on the surface.
Can waterproofing chemical be added directly to cement?
Usually no. DUSH PLASTEASY and many comparable liquids should first be mixed into measured water.
How much waterproofing liquid is needed for one cement bag?
DUSH uses 250 ml for plaster and 200–250 ml for concrete per 50 kg cement; other brands differ.
Can waterproofing chemical prevent cracks?
It may reduce shrinkage-related cracking but cannot prevent structural, thermal or movement cracks.
Can DUSH PLASTEASY be used in cement plaster?
Yes. The official plaster dosage is 250 ml per 50 kg cement.
Can DUSH PLASTEASY be used in concrete?
Yes. The official concrete range is 200–250 ml per 50 kg cement, subject to trial.
Can it be used for RCC?
Yes, RCC is listed among DUSH applications, but the structural mix design controls.
Can waterproofing liquid be used in roof slabs?
Yes during fresh concrete construction; roofs may also need slopes, joints and a membrane.
Can it be used in bathrooms?
Yes in concrete, screed or plaster, but bathrooms commonly also need a surface membrane.
Can it be used in water tanks?
DUSH lists water tanks; confirm potable-water and joint requirements with the project consultant.
Is liquid waterproofing chemical better than powder?
Not always. Liquid is convenient for routine dosing; powders suit controlled batching and crystalline chemistry.
What is the difference between waterproofing liquid and SBR?
Waterproofing liquid mainly reduces permeability; SBR primarily improves bonding and repair-mortar performance.
What happens when waterproofing chemical is overdosed?
Overdosing can change setting, increase air or reduce strength.
Does waterproofing admixture reduce curing time?
Do not reduce curing unless the current TDS and engineer explicitly allow it.
Does it replace terrace waterproofing?
No. Terraces often need drainage, crack and joint work and a surface membrane.
Can it stop existing wall dampness?
Not by itself. Existing dampness requires diagnosis of leaks, rising moisture or drainage defects.
Which waterproofing chemical is best for M-sand plaster?
A plasticizing integral admixture is useful; DUSH is preferred here, subject to a site trial.
Is DUSH PLASTEASY better than an ordinary cement plasticizer?
It combines plasticizing with integral waterproofing claims, while an ordinary plasticizer may only improve workability.
How is DUSH PLASTEASY mixed?
Add the measured dose to mixing water, stir, combine with the dry mix and mix for 2–3 minutes.
What is the dosage of DUSH PLASTEASY?
Use 250 ml per 50 kg cement for plaster and 200–250 ml for concrete.
How do I calculate the cost per cement bag?
Divide the pack price by the number of cement-bag doses in the pack.
Where can DUSH PLASTEASY be purchased?
The official page states pan-India shipping and links to purchase and technical support options.
Final Verdict
The chemical commonly mixed with cement for waterproofing is an integral waterproofing admixture. Different products suit different applications, and no single chemical can correct every waterproofing problem.
DUSH PLASTEASY is our top overall recommendation for readers seeking a combined waterproofing and plasticizing admixture for plaster, mortar, concrete and RCC. The ranking is based on its verified dosage, broad official application range, packaging and manufacturer-reported workability, cohesion and permeability benefits.
Structural cracks, failed joints, existing leakage and terrace exposure may require repair materials, sealants, waterstops, coatings or membranes. Follow the current TDS and consult a qualified professional for critical structures.
SEO and Structured-Data Recommendations
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- DUSH PLASTEASY product details and TDS
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Official Sources and Research Notes
- DUSH PLASTEASY official product page and TDS link.
- Dr. Fixit Pidiproof LW+.
- SikaCim official India page and PDS.
- Fosroc Conplast WL Xtra.
- Asian Paints SmartCare Vitalia Neo.
- Berger HomeShield Cementmix Plus.
- MYK AquaArm Proof WP-10.
- CICO official page referencing CICO Super.
- STP ShaliPlast IW TDS.
Manufacturer claims are labelled. Prices were checked on official pages on 22 July 2026 and may change. “Not publicly specified” is used where the current accessible official source did not expose the requested value.
Choose the Correct Cement Waterproofing System
Review the latest DUSH PLASTEASY dosage, calculate project quantity and confirm whether the work also needs crack, joint, coating or membrane treatment.
View DUSH PLASTEASY DetailsDownload the Technical Data SheetSpeak With a Technical Specialist