Brewers Decorators’ Ultimate Caulk is a high quality, low odour, acrylic sealant which is designed to prevent crazing, cracking and discolouration of the paint film when over-painted with most water-based and synthetic paints. It adheres without primer to most – even slightly damp – substrates and will not corrode metal.Specifically developed for sealing connection joints between stairs, walls, ceilings, skirting boards, windowsills, wooden and metal window frames. Concrete and brickwork and for filling cracks, screw and nail holes in walls and ceilings of wood, plaster, gypsum, brickwork and concrete. Suitable for interior and *exterior use.*Exterior use only in dry weather conditions for at least 5 hours after application.