What is an Undercoat Paint and How is it Different to Primer?
Oil Primer/Undercoat - Fine Paints of Europe
A Guide to Undercoat and Paint Primer - Decorator's forum UK
How to paint undercoat on Drywall Plasterboard - YouTube
Amazon.com: Stone Coat Countertops White Epoxy Undercoat – Epoxy Paint and Primer Mix for Coating MDF, Plywood, and Porous Materials! Great for DIY Countertop Epoxy Kits! 1 Quart, 32 Fl Oz :
Do You Need an Undercoat When Painting Walls?
KBS Corvette UnderCoat Asphalt Undercoating / Frame Paint