Sifel 660 Silicone modified perfluoropolyether Shin-Etsu Rubber - Elastomer >> Silicone rubber ADHESIVE SEALANT The combination of a perfluoropolyether backbone with a terminal silicone crosslinking group results in outstanding performance SHIN-ETSU SIFEL allows design and processing flexibility for adhesion and coating applications which will be exposed to harsh environmental conditions. Examples are die-attachments, conformal coatings, and sealing for electronics and control devices used in severe exposure applications Resistance to Solvents and Fuels Resistance to Oils Resistance to Chemicals Self Priming Adhesion Heat Resistance Low Moisture Permeability Excellent Electrical Insulation Properties Low Dielectric Constant at Giga Frequencies High Purity High purity combination of a perfluoropolyether backbone with a terminal silicone crosslinking group. Used in adhesives and sealants which will be exposed to harsh environmental conditions. Provides flexibility, heat resistance, good electrical insulation properties and low dielectric constant. Offers self priming adhesion, resistance to solvents, fuels, oils and chemicals.