3M
3M 425 Foil Tape 3/4 in Silver PK500
Aluminium foil tape with acrylic adhesive withstands 300 °F and meets UL 723 and SAE AMS-T-23397 standards in a 500-roll pack
- ColorSilver
- Withstands 300 °F continuous heat per UL 723
- Acrylic adhesive bonds reliably per ASTM D3330
- 97 mil foil backing meets SAE AMS-T-23397
- 500-roll bulk pack reduces reorder frequency
- Conforms to FAR 25.853 (a) flame standards
3M 425 Foil Tape 3/4 in Silver
This 3M 425 foil tape uses an aluminum foil backing with an acrylic adhesive. It is supplied in a 500-roll pack with a tape width of 3/4 in and a thickness of 1.97 mil. The tape is rated for continuous use up to 300 degrees F.
HVAC sealing and aerospace compliance
Installers who need a foil tape meeting ASTM D3330, ASTM D3652, ASTM D3759, ASTM D3833, FAR 25.853 (a), L-T-80B, SAE AMS-T-23397, UL 723 and UL 746C will find this product specified for those standards. Buyers who require a tape width wider than 3/4 in or a backing material other than aluminum foil should select a different product.
300 degrees F maximum performance temperature
The single specification that decides fit is the maximum tape performance temperature of 300 degrees F. This rating covers the thermal demands of high-temperature ductwork and the listed aerospace and safety standards.
Highlights
- Withstands 300 °F continuous heat per UL 723
- Acrylic adhesive bonds reliably per ASTM D3330
- 97 mil foil backing meets SAE AMS-T-23397
- 500-roll bulk pack reduces reorder frequency
- Conforms to FAR 25.853 (a) flame standards
Specifications
| Brand | 3M |
|---|---|
| Color | Silver |
Questions about this item
Does the 3M 425 foil tape handle continuous heat from an HVAC system running all day?
Yes, the tape is rated for a maximum performance temperature of 300 degrees F and a temperature range up to 300 degrees F, so it withstands sustained HVAC heat.
What surface preparation is needed before applying the 3M 425 foil tape?
Clean the duct or panel so it is dry and free of dust or oil; the acrylic adhesive bonds directly to clean metal or foil without a separate primer.
Will the 1.97 mil thick 3M 425 tape adhere to the older galvanised ductwork already in place?
The acrylic adhesive on the aluminum foil backing is designed to stick to metal duct surfaces, including aged galvanised steel, when they are cleaned first.
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