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Coatings Ingredients
The material selection platform
Coatings Ingredients
by SpecialChem
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SIFEL® 640

Technical Datasheet | Supplied by Shin-Etsu
SIFEL® 640 by Shin-Etsu is a high purity combination of a perfluoropolyether backbone with a terminal silicone crosslinking group. Used in conformal coatings which will be exposed to harsh environmental conditions. Possesses improved adhesion to PPS. SIFEL® 640 provides low moisture permeability, flexibility, heat resistance, good electrical insulation properties and low dielectric constant. Offers self priming adhesion, resistance to solvents, fuels, oils and chemicals.
Product Type
Chemical Composition
Silicone modified perfluoropolyether
Physical Form
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