USG Durock Primer-Sealer
- Enhances the bond between the substrate and the underlayment
- Effective in the treatment of underlayments prior to application of water-based floor-covering adhesives
- Has no adverse effect on floor-covering adhesives
- Mildew-resistant; does not stain finished
High quality floor underlayment primer and sealer in one. Ideal for priming surfaces and subfloors prior to application of poured underlayment. May also be used as a sealer for Durock Brand Self-Leveling Underlayment.