Con-TopSeal

Elastomeric Waterproofing & Heat Insulating Membrane

Seal Water. Resist Heat. Protect Longer.

Con-TopSeal

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.

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
Is Salinity Damaging Your Building

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
Application Process

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.

01

Prepare the Surface

Make sure the substrate is sound, smooth, cured and dry. Remove dust, grease, oil, loose particles and damaged materials before coating.

02

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.

03

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.

04

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}

Product Price List

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.

1 Liter

Con-TopSeal

Waterproofing & Heat Insulating Membrane

  • Small repair & coating work
  • Easy application
5 Liters

Con-TopSeal

Waterproofing & Heat Insulating Membrane

  • Medium roof & terrace work
  • Convenient project pack
10 Liters

Con-TopSeal

Waterproofing & Heat Insulating Membrane

  • Larger roof areas
  • Residential & commercial use
20 Liters

Con-TopSeal

Waterproofing & Heat Insulating Membrane

  • Bulk construction use
  • Suitable for large projects
Product Order Request

Request Con-TopSeal

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Con-TopSeal 1 Liter

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Con-TopSeal Client Reviews

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 Solution
CE

Civil Engineer

Residential Roof
★★★★★ Client Review

Con-TopSeal was used for roof waterproofing where water protection and flexibility were important. The coating was straightforward to apply.

SE

Site Engineer

Terrace Project
★★★★★ Client Review

We used Con-TopSeal on an exposed terrace where UV exposure and thermal movement were key concerns. The system was practical for our project.

PE

Project Engineer

Commercial Building
★★★★★ Client Review

Con-TopSeal was selected for exposed surfaces requiring waterproofing and heat protection. Baral Chemical also provided useful guidance.

CT

Contractor

Roof Renovation
★★★★★ Client Review

The product was easy to apply by roller and suitable for our roof renovation work where hairline cracks and weather exposure were present.

PM

Project Manager

Exterior Protection
★★★★★ Client Review

Con-TopSeal provided a practical coating solution for selected exterior areas exposed to weather, sunlight and moisture.

CP

Construction Professional

Building Maintenance
★★★★★ Client Review

We used Con-TopSeal for maintenance waterproofing on exposed building surfaces. The application guidance from Baral Chemical was helpful.

CE

Civil Engineer

Residential Roof
★★★★★ Client Review

Con-TopSeal was used for roof waterproofing where water protection and flexibility were important. The coating was straightforward to apply.

SE

Site Engineer

Terrace Project
★★★★★ Client Review

We used Con-TopSeal on an exposed terrace where UV exposure and thermal movement were key concerns. The system was practical for our project.

PE

Project Engineer

Commercial Building
★★★★★ Client Review

Con-TopSeal was selected for exposed surfaces requiring waterproofing and heat protection. Baral Chemical also provided useful guidance.

CT

Contractor

Roof Renovation
★★★★★ Client Review

The product was easy to apply by roller and suitable for our roof renovation work where hairline cracks and weather exposure were present.

PM

Project Manager

Exterior Protection
★★★★★ Client Review

Con-TopSeal provided a practical coating solution for selected exterior areas exposed to weather, sunlight and moisture.

CP

Construction Professional

Building Maintenance
★★★★★ Client Review

We used Con-TopSeal for maintenance waterproofing on exposed building surfaces. The application guidance from Baral Chemical was helpful.

Frequently Asked Questions

Con-TopSeal FAQs

Find answers about Con-TopSeal waterproofing, heat protection, application and suitable surfaces.

Con-TopSeal is a single-component, high-elastomeric acrylic waterproofing and heat insulating membrane from Baral Chemical Company Ltd. It forms a flexible protective coating over suitable roofs and exterior surfaces.
Con-TopSeal can be used on building roofs, flat and sloped roofs, terraces, balconies, exterior walls, concrete surfaces, cement-sand renders, suitable screeds, metal decks, terrazzo roof tiles and other approved substrates.
Con-TopSeal is designed as a waterproofing and heat insulating coating for exposed surfaces. It helps provide thermal protection as part of a properly designed roof system.
Yes. Con-TopSeal has high elastomeric flexibility and helps bridge and seal suitable hairline cracks while accommodating movement caused by thermal expansion and contraction.
The TDS describes a primer coat followed by second and top coats. Additional reinforcement with fiber mesh or geo-textile, or an additional coat, may be used depending on the required protection system. :contentReference[oaicite:2]{index=2}
The complete coating system should be allowed to air cure for a minimum of approximately 48 hours. The TDS also recommends approximately 4–6 hours between coats. :contentReference[oaicite:3]{index=3}
Baral Chemical Company Ltd. provides professional waterproofing, heat insulation and construction chemical solutions with technical guidance for different project conditions. Customers searching for a reliable construction Chemical Company or the best chemical company in Bangladesh can receive product selection and project-specific support from the Baral Chemical technical team.
1 Liter
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4 Liters
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12 Liters
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