Phenolic Sleeve & Tube is suitable for general electrical applications to assist in isolating bolts from flanges when galvanic corrosion is likely to occur.Phenolic Sleeve is also not recommended for use in alkaline environments and is unaffected by most organis solvents.
Mylar Insulating Sleeve is used to insulate or isolate bolts from dissimilar metal flanges to avoid galvanic corrossion. Mylar has excellent dielectric strength and low water absorbtion.