PTFE Heat Sealing Tape
 | PTFE Heat Sealing Tape
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High Temp Tapes Company is a manufacturer of ptfe heat sealing tape for heat sealing bars, sealing jaws, impulse sealer wires, vacuum sealer bars, and form-fill-seal packaging machines. Made from brown or gray PTFE coated fiberglass fabric with high-temperature silicone adhesive, this tape gives hot metal parts a clean release surface against packaging film. In typical 130-260 C sealing work, it helps reduce film sticking, molten plastic buildup, edge contamination, and cleaning downtime while keeping seal lines more stable during daily production.
Product Photos
Product Overview
PTFE heat sealing tape is used on the parts of a sealing machine that touch hot film: the heat sealing bar, sealing jaw face, impulse wire, pressure bar, or vacuum sealer strip. It is not made for pipe threads or gasket sealing. Its job is more practical: protect the heated metal surface, allow the film to release cleanly, and help the operator avoid constant bar cleaning.
High Temp Tapes Company makes this tape with brown or gray PTFE coated fiberglass fabric and silicone adhesive. The PTFE surface gives the release performance needed when polyethylene, laminated film, shrink film, or pouch material reaches sealing temperature. The fiberglass fabric keeps the tape flatter and more stable than very thin PTFE film when the bar heats, cools, and presses repeatedly through the day.
Thickness should be matched to the equipment. A 0.08 mm tape is often used on narrow impulse sealer wires where easy bending is important. For common sealing jaws, 0.13 mm and 0.16 mm are practical starting choices. For wider bars, rougher film contact, or higher-wear areas, 0.18 mm or 0.25 mm may give a longer service interval. Before bulk use, we recommend checking the tape after 30-60 minutes at working temperature for edge lifting, adhesive movement, surface discoloration, residue transfer, and film drag.
Technical Data Sheet
Item | Typical Value |
Product Type | PTFE heat sealing tape for packaging equipment |
Backing Material | PTFE coated fiberglass fabric |
Surface Color | Brown / gray |
Adhesive Type | High-temperature silicone adhesive |
Total Thickness | 0.08 mm / 0.13 mm / 0.16 mm / 0.18 mm / 0.25 mm |
Thickness Selection | 0.08 mm for impulse wire, 0.13-0.16 mm for standard jaw, 0.18-0.25 mm for higher-wear bar areas |
Common Width | 12 mm / 19 mm / 25 mm / 38 mm / 50 mm |
Custom Width | Cut-to-width rolls according to sealing bar or jaw width |
Roll Length | 10 m / 30 m / 33 m / 36 yd |
Typical Heat Sealing Use | 130-260 C |
Peel Adhesion Reference | 6-10 N/25mm depending on adhesive grade |
Tensile Strength Reference | 250-320 N/50mm depending on backing thickness |
Release Surface | PTFE non-stick release surface |
Application Position | Heat sealing bar, sealing jaw, hot wire cover, pressure bar |
Heat Cycle Check | 30-60 minutes at working temperature before bulk confirmation |
Use Observation | Check edge lifting, residue, discoloration, fraying, visible glass fiber |
Replacement Signal | Film sticking, weak seal spots, exposed glass fabric, uneven seal line |
Suitable Equipment | Impulse sealer, vacuum sealer, L-bar sealer, form-fill-seal machine |
Process Factors | Sealing temperature, dwell time, jaw pressure, film thickness, cycle rate |
Industry Insight
What makes PTFE tape suitable for continuous operation in harsh industrial environments?
Unlike conventional polymer tapes, PTFE maintains molecular stability under thermal cycling and chemical exposure. This allows it to function reliably in continuous-run machinery where material degradation would otherwise lead to leakage, downtime, or contamination.
Benefits
- Helps packaging film release from the heat sealing bar without sticking or tearing.
- Protects sealing jaws from molten plastic buildup, carbonized residue, and repeated scraping.
- Silicone adhesive is suitable for typical 130-260 C heat sealing use on hot bar contact areas.
- Cut-to-width rolls can match 12 mm, 19 mm, 25 mm, 38 mm, 50 mm, or special jaw widths.
- PTFE coated fiberglass tape gives better wear resistance than thin release film on high-cycle packaging lines.
- A stable fabric backing helps keep pressure transfer more even across the seal area.
- Routine tape replacement can reduce downtime caused by dirty bars, film drag, weak seal spots, and uneven seal lines.
Application
- Impulse sealer wire covering for pouch, bag, and small package sealing.
- Vacuum sealer bar protection where clean film release is needed after each cycle.
- Bar surface covering for shrink wrap, pouch packing, and film converting machines.
- Sealing jaw protection on form-fill-seal packaging machines and vertical baggers.
- L-bar sealer contact surfaces where film may drag, wrinkle, or stick after heating.
- Pressure bar covering for equipment that needs a smooth non stick heat sealing tape surface.
- Replacement for worn PTFE tape for heat sealer parts showing residue, frayed edges, or exposed glass fabric.
How Should PTFE Heat Sealing Tape Be Selected for Different Sealing Bars?
The best choice depends on the machine contact area, not only the temperature rating. A narrow impulse sealer wire usually needs a thinner heat sealer replacement tape, such as 0.08 mm or 0.13 mm, so it can wrap smoothly around the heating strip. A flat heat sealing bar or sealing jaw may need 0.13 mm or 0.16 mm PTFE coated glass cloth tape to cover the full pressure face without wrinkles. For vacuum sealers and form-fill-seal machines, the tape should be tested under the real sealing temperature, dwell time, jaw pressure, film thickness, and cycle rate. After testing, check whether the film releases cleanly and whether the edges stay flat.
When Should Heat Sealing Tape Be Replaced on Packaging Equipment?
Replacement should be decided by sealing performance, not only by a fixed date. On busy packaging lines, the top surface may still look usable while the release layer is already worn at the jaw contact point. Common warning signs include film sticking to the hot bar, dark discoloration, exposed glass fabric, frayed edges, adhesive residue after 130-260 C use, or weak and uneven seal lines. Edge lifting after repeated heat cycles is especially important because film residue can collect under the lifted area and contaminate the sealing zone. A practical maintenance check is to compare seal quality before and after replacement, then adjust the replacement interval according to temperature, dwell time, jaw pressure, film type, and daily cycle rate.
FAQ
Is this tape the same as pipe thread PTFE tape?
No. This tape is made for heat sealing equipment. It is not plumber tape, pipe thread sealant, flange gasket tape, or expanded PTFE sealing material.
Which thickness is better for an impulse sealer?
For narrow impulse wires, 0.08 mm or 0.13 mm is usually easier to wrap around the heating strip. Wider pressure bars may use 0.13 mm, 0.16 mm, or thicker grades depending on wear.
Will silicone adhesive leave residue after heat use?
Silicone adhesive is selected for high-temperature sealing use, but residue still depends on temperature, dwell time, bar cleanliness, jaw pressure, and replacement timing. Sample testing at 130-260 C is recommended before full production.
How often should ptfe heat sealing tape be replaced?
There is no fixed interval for every machine. Replacement depends on cycle rate, sealing temperature, film thickness, jaw pressure, dwell time, and cleaning method. Replace it when film starts sticking, edges lift, glass fabric appears, adhesive residue increases, or seal quality becomes inconsistent.