A clean, non-adhesive solution for electrical connections is made possible with Scotch Tape 2510. Its fabric backing is made of straight-cut woven cotton cambric fabric for rugged durability and great tensile strength. The fabric is oil-primed and coated with yellow electrical-grade varnish for reliable insulation, and our cambric tape repels moisture, provides excellent dielectric support and is tough against puncture and cut-through forms of breakage. This tape is ASTM Approved and RoHS 2011/65/EU Compliant.