Mercapto Functional Silicone Fluids

Mercapto Functional Silicone Fluid Types

About Mercapto Functional Silicone Fluids

Mercapto functional silicone fluids provide means of incorporating silicone fluids into various curing systems, thereby improving properties such as flexibility or high temperature resistance. The Mercapto-alkyl functionality reacts primarily with systems containing double bonds by the following reaction:

Mercapto Functional Silicone Fluids

Fluids containing Mercapto-Alkyl groups have a high affinity for metal surfaces, much like amine functional silicones. Therefore, they can also be used in release agent applications.

Pendant Mercapto/Dimethyl Copolymers

Genesee Polymers Corporation manufactures four Mercapto-Alkyl/Dimethyl copolymers with the following general structure where the blocks are randomly distributed.

Pendant Mercapto/Dimethyl Copolymers
Product x y Viscosity (cPs) @ 25°C Wt. % SH
GP-367
36
6
150 cP
5.4%
GP-71-SS
83
2
200 cP
1%
GP-800
108
5.4
200 cP
2%
GP-710
933
6
30000 cP
0.28%

Mercapto Functional Paintable Silicone Fluids

Mercapto functionality gives GP-7200 a higher affinity for mold surfaces and the absence of dimethyl silicone units makes it compatible with most paints and coatings, so that there is no interference with post treatment paints applied to the treated part.

GP-7200 Mercapto Functional Paintable Silicone Fluid
Product Viscosity (cPs) @ 25°C
GP-7200
2250 cP