Roof Waterproofing
Chemsol Chemroof
Chemsol Chemroof is an elastomeric waterproofing membrane based on modified acrylic emulsion, strongly recommended for high-build waterproofing applications. It adheres firmly to surfaces and provides an excellent water-resistant coating for years. This coating is extremely tough, elastic, and easy to apply using a roller or squeegee.
Applications
- Waterproofing plain slab and sloping roofs.
- Waterproofing of parapet walls.
Features
- Easy to apply with brush, squeegee, or roller.
- Good adhesion to concrete.
- VOC free.
- Can be applied on both horizontal and vertical surfaces.
- Provides a highly durable seamless waterproofing membrane.
Method of Application
1. Surface Preparation
- Surface should be clean, dry, and in sound condition.
- All dirt, grease, and loose particles should be removed, and the surface should be washed thoroughly with clean water.
- The surface should be moist before the coat application.
2. New Surfaces
- The newly constructed surfaces shall be completely cured before coating application.
3. Cracks and Joint Treatment
- All surface cracks from 0–5mm shall be opened with a 3mm angle grinder.
- The opened cracks shall be cleaned properly and filled with Chem Crack Fill (acrylic crack-filler) or PU Sealant.
- Cracks more than 5mm should be repaired using polymer-modified mortar of Chemfast SBR with a cement sand ratio of 1:3 and polymer content of 10% by weight of cement. Allow it to cure as required.
4. Priming
- Apply a priming coat with Chemsol Chemroof diluted with 50% water. The priming coat provides coverage of approximately 80–100 Sqft/L depending upon surface finish.
- The surface should be maintained in SSD condition prior to priming application.
- Chem Seal Prime can also be used for priming purposes with 50% water dilution.
5. Application
- Mix the bucket contents thoroughly before use.
- Properly detail the drain outlets using an additional piece of fiberglass mesh as reinforcement.
- Apply the first coat of Chemsol Chemroof with a coverage of 0.45 Ltr/Sqm/Coat over the surface. Allow it to air dry for at least 6 hours.
- Apply the second coat at a 90° angle to the first coat and allow it to dry for another 6 hours minimum.
6. Ponding
- Allow the system to air cure for 7–8 days before performing the pond test.
- Ponding should be done with water not more than 5 cm in height.
Precautions and Limitations
- Do not dilute Chemroof with water for coating application.
- Keep the material tightly closed when not in use.
- Vehicular or machinery movement is not recommended on the coated surface.
Technical Information
| Property | Test Method | Value and Unit |
|---|---|---|
| Crack Bridging | ASTM C836:00 | Up to 2mm |
| Solid Content (% by weight) | ASTM D 1644 | 60 |
| Adhesion to Concrete | ASTM D | 1.5 MPa |
| Surface Dry | 40–45 min | |
| Tensile Strength | ASTM D-412:2002 | 2 MPa |
| Elongation at Break | ASTM D-412:2002 | >300% |
| Coverage | 0.45 Ltr/Sqm/Coat | |
| Water Penetration @ 3 bar | DIN 1048:Pt 5:91 | No penetration |
| Water Vapour Permeability | IS: 7809 / 1977 | 10–15 g/m²/24hrs |
| Film Thickness (1 coat primer + 2 coats) | 500–600 microns |
Theoretical Coverage
Per liter coverage of 1.1 m² for 2 coats is obtained on a smooth concrete surface.
Pack Size
5L and 20L
Storage
Chemsol Chemroof shall be stored in a cool and dry place protected from direct sunlight.
Shelf Life
12 months from the date of manufacturing if unopened and stored properly.
Health and Safety
- Wash skin with soap and water.
- On eye contact, wash immediately and consult a physician if irritation persists.
- On ingestion, consult a doctor immediately.
Chemsol Chemroof Plus
Chemsol Chemroof Plus is an acrylic-based waterproofing product with high resistance to all weather conditions and excellent UV stability. It is easy to apply using a roller or brush and is environmentally friendly.
Applications
- Large roof areas over screed or coba.
Features
- Coating DFT of 800–1000 microns in three coats.
- 2 mm crack bridging ability due to over 300% elongation.
- Excellent resistance to weather conditions.
- Better solar reflective index.
- Low VOC content.
- Easy to apply.
Method of Application
1. Surface Preparation
- Surface should be clean, dry, and in sound condition.
- All dirt, grease, and loose particles should be removed, and the surface should be washed thoroughly with clean water.
- Ensure that proper slope is provided and there is no water stagnation.
- All previous coatings, if any, shall be completely removed.
2. New Surfaces
- The newly constructed surfaces shall be completely cured before coating application.
3. Cracks and Joint Treatment
- All surface cracks shall be opened with a 3mm angle grinder.
- The opened cracks shall be cleaned properly and filled with a suitable acrylic crack-filler or PU Sealant.
- Cracks more than 5mm should be repaired using polymer-modified mortar with Chemfast SBR in a cement sand ratio of 1:3 and polymer content of 10% by weight of cement. Allow it to cure as required.
4. Priming
- Apply a priming coat of Chemsol Chemroof Plus with 100% water dilution. The priming coat shall give approximate coverage of 80–100 Sqft/L depending upon the surface finish.
- The surface should be maintained in SSD condition prior to priming application.
- Priming can also be done with Chemseal Prime with 100% dilution.
5. Application
- Mix the bucket contents thoroughly before use.
- Properly detail the drain outlets with an additional piece of fiberglass mesh as reinforcement.
- Apply the first coat of Chemsol Chemroof Plus with a coverage of 0.45 Ltr/Sqm/Coat. While the coat is still wet, lay a 45 GSM fiberglass mesh over the surface. This mesh is sandwiched between two coats and provides reinforcement. Allow the coating to air dry for a minimum of 6 hours.
- Apply the second coat of Chemsol Chemroof Plus at a 90° angle to the first coat and allow it to dry for at least 6 hours.
- Apply the third coat at a 90° angle to the second coat. Ensure that the fiberglass mesh is completely embedded in the coating and there are no air pockets left.
6. Ponding
- Allow the system to air cure for 7–8 days before performing the pond test.
- Ponding should be done with water not more than 5 cm in height.
Precautions and Limitations
- Do not dilute Chemroof Plus with water for coating application.
- Keep the material closed when not in use.
- Corners, joints, and repair areas should be treated with two extra coats.
- Not suitable for vehicular traffic.
- Surface must be in SSD condition for primer application.
Technical Information
| PROPERTIES | TEST METHOD | UNITS | RESULTS |
|---|---|---|---|
| Solid Content | ASTM D1644 | % | >62 |
| DFT (Recommended) | mm | 0.8 – 1 | |
| Adhesion | ASTM D 3359 | N/mm² | >2 |
| Water Vapor Permeability | ASTM D 1653 | g/m²/24hrs | >20 |
| Elongation at Break | ASTM D 412 | % | >300 |
| Crack Bridging Ability | AS/NZD 4548.5 : 1999 | mm | 1.5 |
| SRI Index | ASTM E 1980-19 | 110 | |
| Tensile Strength | ASTM D 412 | N/mm² | 2 |
Theoretical Coverage
Material consumption of 0.45 Ltr/m²/Coat should be maintained throughout three coats for a standard thickness of 800–1000 microns with fiber mesh. A 20L pack of Chemroof Plus will cover approximately 150 m² of area.
Storage
Chemsol Chemroof Plus shall be stored in a cool and dry place protected from direct sunlight.
Shelf Life
24 months from the date of manufacturing if unopened and stored properly.
Health and Safety
- Wash skin with soap and water.
- On eye contact, wash immediately and consult a physician if irritation persists.
- On ingestion, consult a doctor immediately.
Chemsol Chemroof Kool
Chemsol Chemroof Kool is a single-component polyurethane-based coating that provides excellent heat reduction and waterproofing for metal surfaces.
Applications
- Factories
- Warehouses
- Metal sheets, aluminum roof surfaces, etc.
Features
- Excellent UV resistance.
- Increases life and durability of the structure.
- Non-yellowing, anti-fungal, and antibacterial.
- Easy to apply and clean.
- Excellent bonding to surface.
- Low dirt pickup.
- Highly elastic, tough, and resilient coating that can bridge cracks up to 1 mm.
Method of Application
1. Surface Preparation
- Surface should be clean, dry, and in sound condition.
- All surface dirt, grease, loose particles, and rust should be removed, and the surface should be washed thoroughly with clean water.
- All previous coatings, if any, shall be completely removed.
2. Joint Treatment
- All surface joints shall be cleaned properly and filled with PU sealant.
3. Priming
- Metal roofs shall be primed with Chem Zink Prime using a roller or spray.
- The coverage should be 5–8 Sqm/L.
4. Application
- Apply one coat of Chemroof Kool on the primed surface with a roller or brush and allow the coat to air dry for 6–8 hours.
- Apply the second coat of Chemroof Kool at a 90° angle to the first coat and allow the system to air cure for at least 7 days.
Precautions and Limitations
- Do not dilute Chemroof Kool with water.
- Stir the contents of the container thoroughly before application.
- Keep material tightly closed when not in use.
- Do not apply when rain is expected within a short time span.
- Operating temperature for coating application is between 10°C – 40°C.
Technical Information
| PROPERTIES | TEST METHOD | UNITS | RESULTS |
|---|---|---|---|
| Elongation | % | 250 | |
| Color | White | ||
| Flash Point | Not Flammable | ||
| Surface Dry | 30–45 min | ||
| Tensile Strength | ASTM D 412 | N/mm² | 1.2 |
| Pull-Off Adhesion | N/mm² | 1.3 | |
| DFT/Coat | Microns | 60–70 |
Theoretical Coverage
Material consumption of 8–9M²/L/Coat depending upon the porosity of the substrate.
Storage
Chemsol Chemroof Kool shall be stored in a cool and dry place protected from direct sunlight.
Pack Size
20L
Shelf Life
24 months from the date of manufacturing if unopened and stored properly.
Health and Safety
- Wash skin with soap and water.
- On eye contact, wash immediately and consult a physician if irritation persists.
- On ingestion, consult a doctor immediately.
Chemsol Chemroof Clear
Chemsol Chemroof Clear is a transparent elastomeric waterproofing membrane strongly recommended for tiled surfaces. It adheres firmly to the substrate and provides an excellent water-resistant coating that can be easily applied using a roller or squeegee.
Applications
- Waterproofing tiled roofs and terraces.
- Coating on China Mosaic and other tiled surfaces.
- Clear coating for façades, tiled walls, bricks, etc.
Features
- Easy to apply with brush, squeegee, or roller.
- Good adhesion to tiled surfaces.
- Can be applied on both horizontal and vertical surfaces.
- Good UV resistance.
Method of Application
1. Surface Preparation
- Surface should be clean, dry, and in sound condition.
- All dirt, grease, and loose particles should be removed, and the surface should be washed thoroughly with clean water.
- All tile joints should be completely filled with suitable grout.
- Loose tiles must be removed and properly fixed to prevent movement during use and coating application.
2. Priming
- Apply a priming coat of Chemsol Chemroof Clear diluted with 50% water. The priming coat provides approximate coverage of 80–100 Sqft/L depending on surface finish.
3. Application
- Mix the bucket contents thoroughly before application.
- Properly detail the drain outlets with the coating, using an additional piece of fiberglass mesh as reinforcement.
- Apply the first coat of Chemsol Chemroof Clear across the surface and allow it to air dry for a minimum of 6 hours.
- Apply the second coat at a 90° angle to the first coat and allow it to dry for at least 6 hours.
- Apply the third coat at a 90° angle to the second coat and allow it to dry for another 6 hours.
Precautions and Limitations
- Do not dilute Chemroof Clear with water for coating application.
- Keep material tightly closed when not in use.
- Vehicular or machinery movement is not recommended on the coated surface.
- Use PU grade roller for coating application.
- Do not apply excess material to avoid blistering on the coated surface.
Technical Information
| Property | Test Method | Value and Unit |
|---|---|---|
| Crack Bridging | ASTM C836:00 | 0.5 mm |
| Solid Content (% by weight) | ASTM D 1644 | 60% |
| Adhesion to Concrete | ASTM D | 1.5 MPa |
| Surface Dry | 40–45 min | |
| Tensile Strength | ASTM D-412:2002 | 1 MPa |
| Elongation at Break | ASTM D-412:2002 | >120% |
| Coverage | 25 Sqft/Ltr/3 Coats | |
| Water Penetration @ 3 bar | DIN 1048:Pt 5:91 | No penetration |
| Film Thickness (1 coat primer + 2 coats) | 150–200 microns |
Theoretical Coverage
Per liter coverage of 25 Sqft/Ltr for 3 coats is obtained. Coverage may vary depending on the porosity of the substrate.
Pack Size
5L and 20L
Storage
Chemsol Chemroof Clear shall be stored in a cool and dry place protected from direct sunlight.
Shelf Life
12 months from the date of manufacturing if unopened and stored properly.
Health and Safety
- Wash skin with soap and water.
- On eye contact, wash immediately and consult a physician if irritation persists.
- On ingestion, consult a doctor immediately.
End-to-End Surface Protection Expertise
At Chemsol, we provide complete protection solutions for industrial, commercial, and residential structures. From surface preparation to final finishing, we deliver chemistry-driven systems that extend life, boost durability, and ensure performance in the toughest environments.
Detailed site assessment to identify substrate condition, moisture issues.
Custom-formulated coatings and matched to your personal environment.
Mechanical, chemical, and cleaning processes to ensure perfect bonding.
Precision installation with certified applicators for seamless, durable, and aesthetic finishes.
End-to-end supervision, quality inspection, and post-project support for long-term performance.
Experience the Chemsol Difference
Chemsol
✅ End-to-end coating & waterproofing systems
✅ Custom polymer-engineered formulations
✅ Certified applicators & trained experts
✅ Scientific surface preparation & testing
✅ Long-term performance & maintenance support
Others
❌ Partial or single-stage solutions
❌ Generic off-the-shelf chemicals
❌ Unskilled labour & inconsistent quality
❌ Minimal prep, poor adhesion & failures
❌ No after-service or durability assurance