Con-TopSeal
Elastomeric Waterproofing & Heat Insulating Membrane
Seal Water. Resist Heat. Protect Longer.
Product Description

What is Con-TopSeal?
Con-TopSeal is a premium single-component, high-elastomeric acrylic waterproofing and heat insulating membrane developed for roofs, terraces, exterior walls and other exposed construction surfaces.
It forms a flexible, seamless protective coating that helps resist water penetration, UV exposure and thermal movement. Its high elasticity allows the coating to accommodate expansion and contraction while helping bridge and seal hairline cracks.
Developed by Baral Chemical Company Ltd., Con-TopSeal is suitable for concrete, masonry and several other properly prepared construction substrates.
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Is Water & Heat Damaging Your Roof?
- Water penetration through roof surfaces
- Hairline cracks caused by thermal movement
- Excessive exposure to sunlight and UV
- Heat transfer through exposed roof surfaces
- Weather-related surface deterioration
- Moisture affecting exterior surfaces
Waterproof. Insulate. Protect Your Building.
Con-TopSeal creates a flexible protective membrane that helps resist water penetration, UV exposure and weathering while supporting better thermal protection of exposed surfaces. With approximately 440% elongation at break, the coating can accommodate movement associated with expansion and contraction while maintaining its protective function.
Why Choose Con-TopSeal?
Developed by Baral Chemical Company Ltd., a trusted construction Chemical Company in Bangladesh, Con-TopSeal provides a professional solution for roof waterproofing, heat insulation and long-term exterior surface protection.
✅ Helps prevent water penetration
✅ Waterproofing & heat insulating protection
✅ High elastomeric flexibility
✅ Bridges and seals hairline cracks
✅ UV and weather resistant
✅ Helps accommodate thermal expansion & contraction
✅ Helps protect against carbonation and chlorides
✅ Good adhesion to suitable substrates
✅ Water-based and non-toxic
✅ Easy application by brush or roller
✅ Suitable for light foot traffic
Where Can It Be Used?
- Building Roofs
- Flat & Sloped Roofs
- Roof Terraces
- Balconies
- Exterior Walls
- Swimming Pools
- Lift Pits
- Wet Areas
- Concrete Surfaces
- Cement-Sand Renderings
- Existing Cementitious Waterproofing
- Sound Brick-Bat Coba
- Concrete Screeds
- Terrazzo Roof Tiles
- Metal Decks
- Suitable Wooden Substrates
Simple Steps for Long-Lasting Waterproofing
Proper surface preparation and coat application are essential for getting the best waterproofing, flexibility and heat protection performance from Con-TopSeal.
Prepare the Surface
Make sure the substrate is sound, smooth, cured and dry. Remove dust, grease, oil, loose particles and damaged materials before coating.
Apply Primer Coat
Apply one primer coat of Con-TopSeal mixed with approximately 30–40% water and allow it to dry properly before the next coat.
Apply Main Coats
Apply the second coat after the primer becomes touch dry. Apply the top coat using Con-TopSeal mixed with approximately 15–20% water.
Cure & Protect
Maintain approximately 4–6 hours between coats and allow the completed system to air cure for at least 48 hours before exposure to service conditions.
Technical Note: Con-TopSeal provides approximately 440% elongation at break and is designed to accommodate thermal expansion and contraction. Fiber Mesh or Geo-Textile may be incorporated where additional reinforcement is required. :contentReference[oaicite:1]{index=1}
Choose Your Con-TopSeal Pack
Select a suitable pack for your project requirement. Click Order Now to request current price, product availability and technical application guidance.
Con-TopSeal
Waterproofing & Heat Insulating Membrane
- Small repair & coating work
- Easy application
Con-TopSeal
Waterproofing & Heat Insulating Membrane
- Medium roof & terrace work
- Convenient project pack
Con-TopSeal
Waterproofing & Heat Insulating Membrane
- Larger roof areas
- Residential & commercial use
Con-TopSeal
Waterproofing & Heat Insulating Membrane
- Bulk construction use
- Suitable for large projects
Request Con-TopSeal
Please provide your details. Our representative will contact you regarding current price, product availability and application guidance.
Trusted for Roof & Exterior Protection
See what engineers, contractors and construction professionals say about their experience with Con-TopSeal from Baral Chemical Company Ltd.
Excellent
Con-TopSeal Product Experience
Roof Protection SolutionCivil Engineer
Residential RoofCon-TopSeal was used for roof waterproofing where water protection and flexibility were important. The coating was straightforward to apply.
Site Engineer
Terrace ProjectWe used Con-TopSeal on an exposed terrace where UV exposure and thermal movement were key concerns. The system was practical for our project.
Project Engineer
Commercial BuildingCon-TopSeal was selected for exposed surfaces requiring waterproofing and heat protection. Baral Chemical also provided useful guidance.
Contractor
Roof RenovationThe product was easy to apply by roller and suitable for our roof renovation work where hairline cracks and weather exposure were present.
Project Manager
Exterior ProtectionCon-TopSeal provided a practical coating solution for selected exterior areas exposed to weather, sunlight and moisture.
Construction Professional
Building MaintenanceWe used Con-TopSeal for maintenance waterproofing on exposed building surfaces. The application guidance from Baral Chemical was helpful.
Civil Engineer
Residential RoofCon-TopSeal was used for roof waterproofing where water protection and flexibility were important. The coating was straightforward to apply.
Site Engineer
Terrace ProjectWe used Con-TopSeal on an exposed terrace where UV exposure and thermal movement were key concerns. The system was practical for our project.
Project Engineer
Commercial BuildingCon-TopSeal was selected for exposed surfaces requiring waterproofing and heat protection. Baral Chemical also provided useful guidance.
Contractor
Roof RenovationThe product was easy to apply by roller and suitable for our roof renovation work where hairline cracks and weather exposure were present.
Project Manager
Exterior ProtectionCon-TopSeal provided a practical coating solution for selected exterior areas exposed to weather, sunlight and moisture.
Construction Professional
Building MaintenanceWe used Con-TopSeal for maintenance waterproofing on exposed building surfaces. The application guidance from Baral Chemical was helpful.
Con-TopSeal FAQs
Find answers about Con-TopSeal waterproofing, heat protection, application and suitable surfaces.