A potential Boysen Cool Shades user thinks of applying a midcoat of a different product to prevent the primer from bleeding over. Lettie responds with a clarification on this idea. Dear Lettie, I want to paint my roof with Boysen Cool Shades, priming first with Boysen Red Oxide Metal Primer. I might also purchase Boysen … Continue reading Paint TechTalk with Lettie: Will Red Oxide Primer Bleed Over the Topcoat?