Sealant able to withstand large amount of movement

From: Titebond

Titebond presents DuraMaster, a water-based elastomeric sealant with 100 percent joint movement capability. DuraMaster has earned the highest ASTM C-920 rating for sealant performance—Class 100/50. The rating affirms that DuraMaster can handle movement of 100 percent expansion and 50 percent contraction, making it resilient enough to handle high amounts of movement. The sealant offers fantastic adhesion to most common building materials including vinyl, metal, glass, wood, PVC, concrete, aluminum and all types of siding.

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