ALTEX Marine Surfacer Undercoat - White - 3 Sizes

Maintenance & Hardware

ALTEX Marine Surfacer Undercoat - White - 3 Sizes

Product Name Part Number Stock Price Qty
4L 823SWH040 Out of stock $175.00
1L 823SWH010 Low Stock $59.50
500ml 823SWH005 In Stock $31.99


Marine Surfacer Undercoat is designed for use in above water areas only.

It can be used:

  • As a surfacing and build coat in the Single Component topsides marine paint system.

  • As an adhesion/surfacing coat directly to suitably prepared fibre-glass gel-coat.

  • Direct to suitably prepared and sealed timber for cabin interiors.

  • As a tie coat and upgrade on existing sound enamel finishes after correct preparation

  • May be used as a gloss reducing additive in Marine Gloss Enamel (refer MGE Data Sheet). 


  • Proven performance over many years in all above water applications

  • Excellent adhesion and obliteration

  • Good long term sandability

  • Excellent long term re-coatability with itself

  • May be used direct on suitably prepared gel-coat

  • Lead and chromate free

  • Good cure response and sandability make Marine Surfacer Undercoat an excellent surfacing medium to cover minor scratches etc