VAPOR RETARDER WB PRIMER BLUE 5GAL

Vapor Retarder Primer WB (US) (water-based) is a polymer emulsion-based primer used to prime wood, concrete, lightweight concrete, gypsum decks, and approved gypsum boards prior to the application of Sika’s self-adhered vapor retarders. Particularly recommended when the use of solvent-based primer is not advised and/or not permitted.