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Polyester Resin 20kg

£85.15 Excl Vat

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Polyester Resin 20kg

Introducing our Polyester Resin Base Coat for Roofing - a robust and efficient solution available in a convenient 20kg package. This specialized base coat resin, when used in conjunction with our GRP fibreglass matting, ensures top-notch waterproofing for flat or sloping roofing applications and proves versatile for general fibreglass use and repairs.

Product Specifications:

Recommended Usage: Ideal for achieving high-quality waterproofing on roofing projects, this Polyester Resin Base Coat is designed to be compatible with GRP fibreglass matting. It provides reliable performance for both general fibreglass applications and repair work.

Preparation: Prior to application, ensure your timber deck is thoroughly dry, clean, and free of any protruding nails or screws. Additional resin is necessary for priming Plywood or HDF surfaces, with a suggested usage of 0.3kg per square meter.

Polyester Resin 20kg Distinctive Characteristics: Crafted for roller application, the GRP Roofing base coat boasts excellent leveling properties and sag resistance on inclined surfaces. Once cured, the Roof Resin becomes tack-free and watertight, preparing the surface for subsequent topcoat application.

Polyester Resin 20kg Application Tips: Apply the resin on days with moderate temperatures, avoiding direct sunlight. Add a maximum of 3% ResiRoof Catalyst by volume. For optimal results, apply approximately 1.25kg per m2 using a ResiRoof medium pile roller for main roof areas with 450g matting, or 1.5kg for 600g matting. Use a brush for edges and corners, following our ResiRoof user application guides for detailed instructions.

Polyester Resin 20kg Performance Optimization: Store the resin at around 17 degrees Celsius for optimal performance. Apply it to a dry, dust-free surface, combining it with fibreglass stranded or woven matting.


Key Features:

  • Low styrene emission ensures a safer working environment
  • Improved water resistance
  • Low viscosity for efficient fibre wet-out in hand and spray lay-up
  • Long pot life combined with rapid cure
  • Lower exotherm reduces the risk of distortion in thick sections

Base Coat Coverage:

  • Available in 5kg, 10kg, and 20kg options
  • Coverage: 1.25kg per m2 using 450g matting, 1.5kg per m2 using 600g matting

Elevate your roofing projects with our Polyester Resin Base Coat, designed for excellence and longevity.


Q1: What makes Polyester Resin a suitable choice for roofing applications? A1: Polyester Resin is an excellent choice for roofing due to its high-quality waterproofing properties. Specifically formulated for flat or sloping roofs, it provides reliable and long-lasting protection against the elements. Moreover, its versatility allows for seamless use in general-purpose fibreglass applications, making it an ideal solution for various projects.

Q2: How does Polyester Resin cater to both roofing and general-purpose applications? A2: Polyester Resin is designed to offer superior performance in roofing applications, delivering impeccable waterproofing for flat or sloping roofs. Its adaptability extends beyond roofing, making it a versatile solution for general fibreglass applications and repair work. Whether you're working on a roofing project or engaging in a broader range of fibreglass applications, Polyester Resin provides consistent and dependable results.

Q3: Can Polyester Resin be utilized for purposes other than roofing? A3: Absolutely. While Polyester Resin excels in roofing applications, its utility extends to various general-purpose fibreglass projects. Whether you're working on repairs, crafting intricate fibreglass structures, or engaging in DIY projects, Polyester Resin's reliability, low styrene emission, and efficient wet-out characteristics make it an ideal choice for a wide array of applications. Its versatility ensures optimal performance, whether applied to roofing or other fibreglass endeavors

Additional information

Weight 20 kg



Composite Roof Supplies