1. See Detail

Fillers, Pigment & Additives

View as Grid List

12 Items

per page
Set Descending Direction
  1. Catalyst
    As low as £14.69 £12.24

    Catalyst is the standard curing agent for Polyester Resins, Top Coats and Gelcoats.

    Learn More
  2. 1kg Polyester Pigment
    As low as £13.68 £11.40

    Polyester Colour Pigments are added to resins and gelcoats to provide a deep uniform colour. The pigment dispersion resin is a non-reactive resin and can act as a plasticizer so no more should be added than needed. The best way is to add small amounts, starting with 1%-2% and increase as required. Dark colours will require 5%-7% addition. 

    Learn More
  3. Fillite Filler
    As low as £7.68 £6.40

    This is a lightweight, grey/black flecked filler consisting of hollow microspheres. Fillite can be added to polyester resin to extend and reduce the density of the resin mixture. 

    The addition rate is up to 140% by weight but generally 50% will give a good workable mix that can be used to fill large areas or bed down timber or steel to GRP laminates . 

    It can be sanded down easily but should not be used as the final layer prior to any subsequent painting.

    Learn More
  4. Milled Fibre
    As low as £12.82 £10.68

    Milled Fibres may be added to resin to turn the resin into a paste if desired. This provides reinforcement and filler in plastic composites, adhesives and coatings. 

    Learn More
  5. ProWorx Swift Easy Sanding Bodyfiller 3.5 litre
    £25.20 £21.00

    ProWorx is a premium range of car body fillers available to purchase online today from FibreGlassDirect.

    Swift is lightweight, easy to apply and is ideal for deep fills. It offers excellent easy shaping and sanding qualities.This product delivers professional standard crash repair results every time. 

    This product is supplied with hardener and plastic applicator. 

    Learn More
  6. ProWorx Swift Easy Sanding Body Filler 0.6 litre
    £12.24 £10.20

    Swift is the perfect body filler for deep fill, automotive repairs. Its light weight makes it a dream to apply, sand and contour. It is supplied with a hardener and plastic applicator. 

    Learn More
  7. Teroson Gelcoat Filler 241g Pack
    £19.44 £16.20
    This gelcoat filler can be used for repairing chips, scratches, blemishes and osmosis damage in gelcoat. Learn More
  8. 50g BPO Catalyst Sachet
    £1.80 £1.50
    - Benzoyl peroxide catalyst paste - Stable catalyst - Easy to use, re-sealable sachet - Effective and rapid hardening Learn More
View as Grid List

12 Items

per page
Set Descending Direction

Fillers and additives can be added to Polyester and Epoxy resin to extend the resin and impart specific properties to the resin mix. The amount of filler that can be added depends on the viscosity of the resin and the size of the filler particles, generally, the smaller the particle size the less filler can be added to give a workable mixture. It is best to add fillers and additives just before using the mixture to minimize any settlement that may occur.

Our Easy Sanding Body filler, manufactured by ProWorx is the best in its class for automotive repairs. Suitable for a deep fill, this body filler cures quickly, pinhole free and as the name suggests, is super easy to sand. 

Finally, to add some extra colour and vibrancy to your clear resin, gelcoat or topcoat - add some polyester pigment. These pigments come in so many colours there is guaranteed to be one to suit your requirements. Click on the polyester pigment listing below to find out more.