3M™ Polyester Film Tape 850 can generally be used for splicing and applications where chemical resistance and/or clean removal is necessary. The silver backing is a transparent polyester with a thin layer of aluminium. Thin high strength polyester film helps reduce failures due to breakage while meeting low caliper requirements. Chemical and solvent resistance to help reduce rejects produced from chemical and solvent attack. Abrasion resistant to help protect surface from abrasion and rough handling. Applications include deflect flagging where reflective sensing is required; decorative striping and die cutting; decorative edging.