3006 Ultra is a premium sealant featuring outstanding flexibility and adhesion to most surfaces. An excellent choice for any caulking project, it is ideal for filling joints where high-levels of movement are expected. Commonly applied at windows and doors, trim, siding, tubs, showers, sinks, toilets, splashboards, countertops and other high-movement joints.Interior/exterior useNo crackingSuper adhesionExcellent flexibility – 70% total joint movementDurable and crack-resistantGreat adhesionCured sealant is mold and mildew-resistantDries non-tacky – limits dirt pickupBright white finish