Description: Del-Val 231 Modified Rubber Sealant is a black single-component, thermoplastic rubber mastic formulated for protecting seams, penetrations and other detail areas over metal, wood, EPDM, APP, TPO and Hypalon. Del-Val 231 provides a durable, flexible, weather resistant membrane with excellent elongation, tensile strength and UV protection.
Uses: Apply Del-Val 231 by brush at a rate of 80 liner feet per gallon, according to the substrate and condition. Dry time is 1-6 hours. Cure time is 48 hours.
Preparation: Surface must be pressure washed clean, free of all loose particles, dirt debris and other contaminants that could inhibit adhesion. Wire brushing may be recommended .The surface must be completely dry to prevent blistering of the product.
Application: Apply to a clean dry surface using a brush, roller or squeegee. For best results weather should be clear with no threat of rain for 48 hours.
Coverage: Metal Surfaces: apply at the rate of approximately 1 gallon per 80 liner feet. Single-Ply Surfaces: apply at the rate of approximately 1 gallons per 80 liner feet. Must mechanically mix coating before using.
Cleanup: Clean tools with mineral spirits, taking necessary precautions when handling combustible liquids.
Precaution: DO NOT THIN. DO NOT HEAT CONTAINER. DO NOT store in an area where temperatures exceed 12°F