CRL Clear GE® 1200 Construction Silicone Sealant

GE® 1200 is a one-part building and glazing acetic cure silicone sealant that cures to a tough, flexible rubber through the moisture cure process.

Basic Uses
Used to seal building joints to prevent the penetration of rain, air, and noise. It effectively weatherproofs junctions of building materials and can also be used for sealing curtainwall, mullion, and other building construction joints, and for glazing steel and aluminum windows, painted and plastic coated wood windows, interior glass partitions, and skylights. Permanent watertight bonds are made with this sealant, in combination with glass, ceramic, steel, plastics, and painted surfaces. In addition, many maintenance applications are possible where long life, reliability, and sealing properties are required.

Technical Data
It meets or exceeds the following specification standards: Federal Specifications TT-S-001543A Class A (COM-NBS) for silicone building sealants, and TT-S-00230C Class A (COM-NBS) for one component building sealants; ASTM C-920, Type S, Grade NS, Class 25, Use NT, G, A and O; CAN/CGSB-19.13-M87. USDA, FDA, NSF Status.

Limitations
GE® 1200 Construction Silicone Sealant is not intended for structural glazing, or for use on masonry. Check cartridge label and Specification Data Sheet for additional limitations.

Comparable Sealants
CRL: 33S. Dap: 100% Silicone. Dow Corning®: 999-A; 786; 732; 700; Glazing Silicone; General Purpose; Commercial Grade 100%; Tub, Tile and Ceramic; HVAC/R. GE®: 1000 Contractors, 1700 Sanitary. Tremco®: Proglaze, Tremsil 200, TremPro 644. OSI: HM-270. Pecora: 860, 863. Sonneborn: OmniPlus. Sika: SikaSil®-GP.

Important Notes

Should not be applied: to concrete, marble, limestone, lead surfaces, zinc coated (galvanized) metal and copper; to surfaces with special reflective or protective coatings, such as mirrors; in assemblies where two-part silicone sealed insulating glass or two-part structural glazing sealants have been used; in structural glazing applications; to surfaces which will be painted; in totally confined spaces; When used in remedial work, all old sealant must be removed. Check cartridge label and Specification Data Sheet for additional limitations.