Altex Epoxy Barrier Undercoat

Altex Epoxy Barrier Undercoat


Add to Wish List On your Wish List


Introducing Epoxy Barrier Undercoat:

Epoxy Barrier Undercoat offers exceptional performance as a sandable epoxy high build coating, renowned for its remarkable resistance to corrosion and water.

Recommended Applications:

  • Final sealing for Topsides & Superstructures, ensuring an optimal surface for finish coating.
  • High build surfacer to eliminate imperfections and achieve a finish suitable for Altex Polyurethane Undercoat or Elite Polyurethane finish coats.
  • Barrier coat for below waterline application in Altex Antifouling systems.
  • Direct application to sanded GRP, epoxy laminated wood, and epoxy sealed wood.
  • Application over Altex Epoxy Primer or Altex High Build Surfacer.
  • Priming/undercoating over degreased and sanded aged polyurethanes, epoxies, fairing systems, gelcoats, epoxy laminates, and fiberglass.


  • Exceptional build properties up to 150µm DFT with a two-pass application.
  • Superior surfacing and sanding capabilities.
  • Excellent corrosion protection and water resistance.
  • Wide maximum self-recoat times for simplified project management.
  • Compatibility with acrylic or polyester urethane finishes, designed specifically as an undercoat or sealer for the Altex Elite® range of polyurethane finish coats.
  • Suitable as a high build surfacer/undercoat for topcoating with Altex Polyurethane Undercoat.
  • Suitable for immersion service as part of Altex's recommended system.

Related Products

Categorised under...

Thank you for visiting our website. We appreciate your interest in our products. Please note that the items advertised on this website may not always be currently in stock at our store. Product availability is subject to change, and we recommend checking directly with our store for the most up-to-date information.