Product Description
PTFE coated fiberglass tape and cloth provide a durable, non-stick surface for heat-seal packaging machinery. Applied directly to heat-seal jaws, impulse sealer bars, heated platens, laminating rollers, and shrink-wrap tunnel components, the PTFE surface prevents molten plastic film from sticking during the sealing cycle.
Available as self-adhesive tape (silicone adhesive backing for direct application) or as sheet cloth for wrapping and clamping. The material withstands continuous operation at temperatures from −70°C to 260°C and provides a consistent, clean seal without the need for spray-on release agents.
Key Properties
- Non-stick PTFE surface — prevents adhesion of PE, PP, PVC and other packaging films
- Continuous operating temperature: −70°C to 260°C
- Strong adhesive bond — withstands 18–22 N peel force per 4 cm width on steel
- Dimensionally stable — less than 5% elongation at break
- Chemical resistant — withstands strong acids, alkalis, and most organic solvents
- Easy to clean — oil, stains, and residue wipe off readily
Available Formats
| Format | Thickness | Max Width | Notes |
|---|---|---|---|
| Self-adhesive tape (glass fiber reinforced) | 0.13 – 0.30 mm | 600 mm | Slit to any width from 7 mm; 10 m per roll |
| Self-adhesive tape (with release liner) | 0.13 – 0.30 mm | 1250 mm | Standard widths 1 m and 1.25 m |
| PTFE coated cloth (no adhesive) | 0.08 – 0.95 mm | 4000 mm | Cut-to-length available |
Adhesive Tape Specifications
| Thickness | Adhesion (N/25 mm) | Tensile Strength (N/25 mm) | Temp Range |
|---|---|---|---|
| 0.13 mm | ≥ 150 | ≥ 205 | −70 to 260 °C |
| 0.18 mm | ≥ 240 | ≥ 300 | −70 to 260 °C |
| 0.20 mm | ≥ 300 | ≥ 55 | −70 to 260 °C |
| 0.25 mm | ≥ 350 | ≥ 405 | −70 to 260 °C |
| 0.30 mm | ≥ 470 | ≥ 530 | −70 to 260 °C |
Applications
- Heat-seal jaws on form-fill-seal (FFS) machines
- Impulse sealer bars and L-bar sealers
- Shrink-wrap tunnel guide rails
- Vacuum and MAP packaging machine platens
- Laminating and hot-press roller wrapping
