GRP Gel Coat / Topcoat
Pigmented polyester gel coat and topcoat for protective and decorative finishing of GRP laminates.
Overview
The finish surface. Protection plus aesthetics.
GRP Gel Coat is a pigmented polyester resin applied as the first layer of a GRP laminate – becoming the visible exterior surface once the mould is released. Topcoat versions are formulated for direct application as the final layer on hand lay-up work, providing UV stability and aesthetic finish.
Used as the protective and decorative finishing layer for water tanks, GRP pool shells, and architectural components.
Key Features
- Pre-pigmented in standard and custom colours
- UV-stable topcoat formulations available
- Spray, brush, or roller application
- Excellent water and weather resistance
- Tough impact-resistant surface
- Compatible with polyester laminate substrate
Technical Specs
Technical Specifications
All values measured at 23°C unless noted. Full test data available in the datasheet.
| Property | Value | Unit |
|---|---|---|
| Form | Liquid pre-pigmented resin | – |
| Type | Gel coat / Topcoat | – |
| Colour | Wide range (RAL / custom) | – |
| Density | 1.20 ± 0.05 | g/cm³ |
| Viscosity | 2000–4000 | mPa·s |
| Solids content | ≥ 50 | % |
| Catalyst (MEKP) | 1.5–2 | % |
| Gel time at 25°C | 15–30 | min |
| Application thickness | 400–600 | μm |
| Touch-dry | 2–4 | hours |
| Full cure | 24 | hours |
| Service temperature | −20 to +60 | °C |
| Packaging | 5 / 20 | kg |
| Standards | ISO 8339 · BS EN ISO 11600 | – |
Applications
Where this product is used
Six typical site applications where our crews specify this product.
Water tank finishes
Aesthetic finish on water tank interior linings.
Pool surface finish
GRP pool finish surfaces.
Architectural GRP
Architectural GRP component finishes.
Tank exteriors
External finish on GRP tanks.
Marine surfaces
Boat exterior gel coat finishes.
Pond finishes
Decorative pond and water feature finishes.
Explore Our Services
Engineered solutions for every building.
-
Waterproofing Services
View Service →: Waterproofing ServicesProfessional waterproofing services & waterproofing work across Dubai and the UAE — roof, basement, bathroom, pool…
-
Membrane Waterproofing in Dubai
View Service →: Membrane Waterproofing in DubaiSpecialist membrane waterproofing in Dubai – SBS and APP bituminous waterproofing membrane systems plus liquid-applied waterproofing…
-
EPDM Waterproofing in Dubai
View Service →: EPDM Waterproofing in DubaiSpecialist EPDM waterproofing & EPDM roofing in Dubai – synthetic rubber membrane systems with 25-50 year…
-
Polyurea Coating in Dubai
View Service →: Polyurea Coating in DubaiSpecialist polyurea coating in Dubai – polyurea waterproofing systems that cure in seconds and deliver 15-25…
-
Cementitious Waterproofing in Dubai
View Service →: Cementitious Waterproofing in DubaiSpecialist cementitious waterproofing in Dubai – rigid and flexible cement-based waterproof coatings that bond chemically with…
-
Green Combo Roofing in Dubai
View Service →: Green Combo Roofing in DubaiSpecialist green roof system in Dubai – Green Combo Roofing is a dual-purpose green roofing system…
-
Metal Roof Waterproofing in Dubai
View Service →: Metal Roof Waterproofing in DubaiMetal roof waterproofing in Dubai – specialist coatings, sealants, and membranes for steel, aluminium, zinc, and…
-
Liquid Applied Waterproofing in Dubai
View Service →: Liquid Applied Waterproofing in DubaiSpecialist liquid applied waterproofing in Dubai – seamless liquid waterproofing membranes brushed, rolled, or sprayed. Acrylic,…
Engineered Products
