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Polyester Resin & Gelcoat

Polyester Gelcoat is the very upper layer of the GRP Composite System. It has a number of functions.

  • Provide a smooth, glossy finish to the composite, hiding the glass and resin structure
  • Add water and chemical resistance to the composite

Unsaturated Polyester Resin is used along with glass fibre reinforcements to provide a composite. Its primary functions are to:

  • Wet out glass reinforcements to provide strength
  • Produce home made filler pastes with the addition of talc
  • Cast solid polyester resin objects

Unsaturated Polyester Resins & Gelcoats are by far the most common used in GRP Manufacture but there are modified versions for tooling and casting.

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Displaying 1 to 5 (of 5 products) Result Pages:  1 
    Product Name   Buy Now 
 Polyester Laminating Resin 0.5 to 25kg Kits   Polyester Laminating Resin 0.5 to 25kg Kits 
Low viscosity polyester casting resin for models and minor GRP repairs. Will laminate as well as cast!
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 Clear Polyester Gelcoat 0.5kg to 20kg Kits   Clear Polyester Gelcoat 0.5kg to 20kg Kits 
Standard Unpigmented Polyester Gelcoat supplied with catalyst as a kit.
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 Pigmented Polyester Gelcoat 0.5kg to 20kg Kits   Pigmented Polyester Gelcoat 0.5kg to 20kg Kits 
As per our Clear Gelcoat but coloured in either White, Black, Light Grey or Dark Grey.
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 Clear Polyester Flowcoat 0.5kg to 20kg Kits   Clear Polyester Flowcoat 0.5kg to 20kg Kits 
Standard Unpigmented Polyester Flowcoat supplied with catalyst as a kit.
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 Pigmented Polyester Flowcoat 0.5kg to 20kg Kits   Pigmented Polyester Flowcoat 0.5kg to 20kg Kits 
As per our Clear Flowcoat but coloured in either White, Black, Light Grey or Dark Grey.
 Buy Now  
Displaying 1 to 5 (of 5 products) Result Pages:  1 








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