RTV142 one-component, ready-to-use adhesive sealant cures to a tough, durable, resilient silicone rubber on exposure to atmospheric moisture at room temperature. Methyl alcohol vapors are released from the sealant surface as a by-product of cure. These vapors have low odor and are non-corrosive to metals. An important property of RTV142 is its low volatility.
RTV142 sealant has a thixotropic paste consistency. This allows it to be applied to vertical and overhead surfaces without sagging. Since it utilizes a moisture cure system, RTV142 sealant should not be used in thicknesses of greater than 6mm (¼ inch). When section depths exceed 6mm (¼ inch), Momentive Performance Materials one-component, addition cure or two-component silicone rubber compounds are suggested.
FEATURES:
One-component product
Room temperature cure
Primerless adhesion to many substrates
Low odor
Non-corrosive to metals
Low volatility
Low-temperature flexibility
High-temperature performance
Excellent weather ability, ozone, and chemical resistance
Excellent electrical insulation properties
APPLICATIONS:
The non-corrosiveness to metals and low volatility of RTV142 rubber adhesive sealants, as well as their paste consistency, make them well suited for critical electronic adhesive, gasketing and sealing applications where a high level of volatile condensible materials cannot be tolerated.
