3M cross-reference · 3M 5451
An alternative to 3M 5451 PTFE glass cloth tape
3M 5451 is the brown PTFE-impregnated glass cloth tape found on heat sealers and pressing equipment. ETS supplies the same construction, PTFE-coated glass cloth tape (AHS-96xx), from Toronto, cut to your bar width.
3M 5451 vs ETS AHS-96xx
| Property | 3M 5451 (3M published data) | ETS AHS-96xx · Teflon (PTFE-coated) glass cloth tape |
|---|---|---|
| Backing | Brown woven glass cloth impregnated with PTFE | Glass-fiber cloth coated with PTFE |
| Adhesive | Silicone | Confirm the adhesive on the ETS datasheet |
| Temperature | -73°C to 260°C | 260°C continuous, 300°C short-term |
| Typical uses | Heat sealers, ironing and pressing, mold release | Heat-sealing bars, laminating lines, release surfaces |
3M and Scotch are trademarks of 3M Company. ETS is not affiliated with or endorsed by 3M. 3M figures are taken from 3M’s published product information and are not for specification; ETS products are cross-referenced by construction, not certified as equivalents. Compare both datasheets and test a sample on your own process before switching.
Check before you switch
Thickness. Heavier cloth lasts longer on a hot bar but transfers heat more slowly. Tell us the sealer and the material you seal.
Width. Measure the bar or jaw and we will slit to that width, so there is no trimming on the line.
Sealing temperature and cycle rate. Both drive how often the tape wears out. Share them and we will suggest a grade.
Full product detail is in our PTFE tape guide.
Where it is used
- Covering heat-sealer bars and impulse-sealer jaws
- Release surfaces on laminating and pressing equipment
- Mold release in composite work
- Separating parts in hot processes
Test it before you buy
Send us the 3M 5451 size you use now, your process temperature and your substrate. We will send a free sample of AHS-96xx with its datasheet so you can run it on your own parts. In the GTA we can drop it off in person.
Frequently asked questions
Is AHS-96xx the same as 3M 5451?
It has the same construction (PTFE-coated glass cloth with an adhesive backing) and the same 260°C continuous rating, but it is not a certified equivalent. Test a sample on your sealer before switching.
How often should heat sealer tape be replaced?
When it is scorched, torn or no longer releases cleanly. Worn tape gives poor seals and lets material stick to the bar. See our step-by-step guide to replacing heat sealer tape.
Can you cut it to my sealer bar width?
Yes. Send the bar width and length and we will quote custom slitting.
How do I get a sample?
Use the form on this page and choose “Free sample request”.
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Tell us what you’re running and where — we’ll come back with pricing, lead time, and spec sheets for the right tape.