Medium-Density Silicone Elastomer
SF-60 is an elastomer-based product marketed by PCI-Promatec. SF-60 is typically supplied as a two-part set of A and B liquid components. The A liquid is black and the B liquid is buff for easy identification and inspection of complete mixing. Installed by hand or machine, thorough mixing of the components in a 1:1 ratio yields a high dielectric liquid, that cures into a firm elastomer at room temperature, low in halogens, with no off-gassing or other by-products. Since it is installed as a liquid, a complete fill in and around penetrating elements is ensured. Cured, it exhibits a low ampacity derating and a durable, damage-resistant exterior surface that is rated excellent for decontaminability.

Fire Qualification
Numerous successful full-scale fire tests have been performed at nationally recognized laboratories for various seal configurations including electrical and mechanical items in large, complex openings. Designs have been qualified for a three-hour fire resistance at a 6” depth, without permanent damming.

Pressure Testing
Configurations have been qualified for up to 20-psi pressure resistance with zero leakage at a six-inch depth.

Radiation Resistance
SF-60 has undergone substantial radiation exposure levels (1 x 108 Rads Gamma) with no significant changes reported to the material’s physical properties. Base material has undergone exposures as high as 7.13 x 108

Reparability
SF-60 can be selectively removed with relative ease using blunt non-conductive tools and devices. With minor preparation, newly installed SF-60 material becomes integral with existing SF-60.

Cure Time
The cure time for the SF-60 can be as little as 10 minutes, or as long as 8 hours. Custom cure times can be requested.

Packaging
SF-60 is supplied in 100 lb. sets consisting of two five-gallon containers, yielding approximately 1.2 cubic foot of cured material.