substrate-free tape

1. Structure and core parameters
Structure: Release paper → Pure acrylic adhesive film → Release paper (without any substrate)
Thickness: Regular 0.05–0.13 mm (50–130 μm), more than half thinner than adhesive with substrate
Color: Transparent/Light Yellow, almost invisible after bonding
Temperature resistance: long-term 80–95℃, short-term 180–205℃ (acrylic system)
Adhesion: High initial adhesion, stable retention, friendly to metals, plastics, glass, and foam (including melamine foam)
II. Key Features (Compared with Base Materials)
✅ Ultra-thin without adding thickness: suitable for precision assembly and narrow edge fitting
✅ Excellent conformability: perfectly fits curved surfaces, rough surfaces, and microporous materials (such as triamine cotton)
✅ Clean and no precipitation: no substrate, no small molecule migration, suitable for electronics / optics / medical
✅ Waterproof and heat-resistant: Stable under double 85 (85℃/85% RH), not prone to delamination
❌ No cushioning: Cannot replace foam tape for shockproofing
❌ Poor impact resistance: suitable for plane shear force, not suitable for large-area peeling force
III. Commonly used adhesive systems and selection
Regarding basic adhesive tapes, Foshan Zhiwei Adhesive Products Co., Ltd. has over 20 years of professional experience in providing matching solutions. We welcome inquiries from major manufacturers. Please contact us at yang@fszw-tapes.com.
IV. Typical Applications
Electronics: Touch screen, lens, sensor, backlight panel fixation
Automobile: interior trim strip, nameplate, EPDM sealing strip, and triamine cotton insulation pad
Industry: foam (PU / melamine foam) bonding, panel fixation, shock pad fitting
Medical / Optics: Cleanrooms, lenses, precision parts assembly
V. Difference from those with base material/PET adhesive
No substrate: 0.05–0.13mm, conformable, clean, expensive, suitable for melamine cotton
PET double-sided tape: 0.1–0.2mm, rigid, inexpensive, prone to delamination, not suitable for soft foamsubstrate-free tape