A 7 mil (0,18mm) woven glass fabric tape with a thermosetting rubber based, pressure sensitive adhesive used for insulating and protecting high temperature (130°C) connections, such as motor leads and transformer windings.
77 Plyglas has high tensile strength for splice reinforcement and provides excellent tear and abrasion resistance. Use 77 Plyglas to hold down 53 Plyarc arc- and fire-proofing tape. Comm. Spec. 7611, ASTM-D-2754, MIL-I- 15126F/GFT.