After application, the sealant reacts with atmospheric moisture to produce a low-modulus, long-lasting, formed-in-place silicone rubber building joint and glazing sealant. It seals assemblies of metals, masonry, concrete, coated surfaces, plastics, wood, and other common building materials. SilPruf® is specially designed for use in butt joints or lap shear joints in weatherproofing and glazing applications subject to movement.
CRL: 95C. Dow Corning®: 791, 795. Tremco®: Spectrem® 2, Spectrem® 3. Pecora: 864, 895. Sonneborn: Omniseal. Sika: SikaSil®-WS95.
Structural glazing applications require that GE® Silicones give written approval of the use of GE® SilPruf® Silicone Sealant for each building project. Check cartridge label and Specification Data Sheet for additional limitations.
It meets or exceeds Federal Specifications TT-S-001543A (COMNBS) Class A, for silicone building sealants; ASTM C 1184-95 and ASTM C-920 for elastomeric joint sealants, Type S, Grade NS, Class 25, Use NT, G, A and O.