High Build Epoxy Primer 2.5L

High Build Epoxy Primer 2.5L

Buy High Build Epoxy Primer 2.5L with Free Shipping to Mainland UK.

A 2-pack high build epoxy primer for use above or below the waterline. it has excellent adhesion to GRP and repairs and renews old gelcoat. It can aslo be used to build a thicker protective layer over ply (Joins should be reinforced with epoxy glass fibre to prevent movement) and Shield Surface Tolerant Epoxy Primer,

Excellent adhesion to a wide range of other substrates, including mild steel, stainless steel, galvanised steel, aluminium, concrete etc.  3 brush or roller applied coats at a spreading rate of  7 m² per litre of paint used, will typically give 10 years protection on a properly prepared surface.  Available in a wide range of colours  -  you can choose a colour to match the topcoat colour and can be useful to see how a final colour will look before comitting to the topcoat. 

Excellent sanding properties for a mirror smooth surface ready for LUSTRE Polyurethane Gloss or Satin topcoat.

Recommended topcoats:

Standard: Lustre Gloss  or Low Sheen Silicone Alkyd Topcoat

Premium: Lustre Gloss or Satin Polyurethane

Other topcoat options available. Please call us for advice.


  • Application Brush, roller, or airless spray
  • Touch dry @20º C 1 hour
  • Dry to re-coat @20º C 4 hours
  • Coverage 7 - 8m² per litre
  • No. of recommended coats    2-3
  • Thinners SML Epoxy Thinners

Product features

  • Excellent protection above the waterline
  • Specially formulated for brushing & rolling
  • Huge range of colours
  • Sands to really smooth finish
  • Apply topcoat directly over it
  • Cures down to 5º C

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    High Build Epoxy Primer 2.5L