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E&H Laminating
E&H 743-BLK Black PVF Insulation Blanket Cover Splicing Tape
E&H 743-BLK Black PVF Insulation Blanket Cover Splicing Tape
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E&H 743-BLK is a black coat polyvinyl fluoride (PVF) pressure-sensitive insulation cover splicing tape engineered for the fabrication of aircraft insulation blanket covers and the installation of insulation blankets. Built on black-coated PVF film with a 10×10 visual scrim and a highly fire-retardant acrylic adhesive, it seals sewn seams and closes fabrication slits and holes around brackets, conduits, and other objects after installation. The black finish makes it the choice where a non-reflective, visually discreet splice is required. Manufactured by E&H Laminating & Slitting Company — the recognized specialist in aircraft insulation blanket tapes. Passes the FAA Critical Radiant Heat Panel test (FAR 25.856(A)), FAR 25.853 (A or B), and BSS-7230.
Key Features of E&H 743-BLK Splicing Tape
- Black coat PVF film — Non-reflective black finish for discreet splices; 10×10 visual scrim for dimensional stability and controlled tear
- Highest tensile in the E&H PVF range — 23.6 lb/in average (103.80 N/25mm), more than double the 743-T and 743-MT
- 0-second flame time, no drips — Highly fire-retardant acrylic adhesive; 2.8" maximum burn length in 12-second vertical burn testing
- Stable peel across the envelope — 3.6 to 4.1 lb/in from −65°F through 160°F, including 120°F at 100% RH
- 18-month shelf life — Minimum 18 months in cool, dry storage for depot and MRO stockpiles
What Is E&H 743-BLK Used For?
- Fabrication of aircraft insulation blanket covers
- Installation and securing of thermal and acoustic insulation blankets
- Sealing sewn seams on insulation blanket covers
- Closing fabrication slits and holes around brackets, conduits, and other objects after installation
- Applications requiring a black, non-reflective splice finish
Specifications
Approvals
Sizes
Spec Guide
FAQ
What is E&H 743-BLK tape used for?
E&H 743-BLK is a black PVF insulation cover splicing tape used to fabricate aircraft insulation blanket covers, install thermal and acoustic insulation blankets, seal sewn seams, and close fabrication slits and holes around brackets and conduits after installation — particularly where a black, non-reflective finish is required.
Does E&H 743-BLK meet Boeing BMS 5-157?
No. The 743-BLK passes the FAA Critical Radiant Heat Panel test (FAR 25.856(A)), FAR 25.853 (A or B), and Boeing BSS-7230, but it does not carry a BMS 5-157 qualification. If your drawing specifies BMS 5-157, use the 743-T, 743-MT, 753-MP, or 753-MPE instead.
How does the 743-BLK compare to the 743-T and 743-MT?
All three are PVF-film insulation blanket splicing tapes. The 743-BLK is black and has the highest tensile strength at 23.6 lb/in, but it is not BMS 5-157 qualified. The 743-T (white PVF) and 743-MT (metalized PVF) both meet BMS 5-157 Class 1 Grade A and carry Gulfstream GAT callouts.