Dowsil(tm) 781 Silicone Sealant, Black Dowsil 781 is a one-part silicone sealant, which has excellent adhesion to a wide range of non-porous surfaces, including: glass, aluminium, painted surfaces and composite boards. Excellent resistance to ageing, shrinkage, cracking and discolouring. Suitable for glazing applications, weather sealing of sheet cladding and general internal sealing applications. Tack-free in one hour with a working time of 5-10 minutes. Skin over time is 14 minutes. Conforms to ISO 11600-FG-20LM.
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