Product Highlights


Nashua 330X Extreme Weather Foil Tape is an all-weather aluminum foil tape with acrylic pressure-sensitive adhesive. It is used to tape joints and seams in duct work for heating, air conditioning, and refrigeration systems. Specifically intended for use over a wide temperature range, Nashua 330X is suitable for general repairs and a variety of insulation uses. You can also use this tape as window mask to protect aircraft canopies, windshields and passenger window surfaces from cracking or hazing during paint stripping. Nashua 330X has a special adhesive system which has aggressive adhesion even at -25F. Its aluminum foil backing is extremely conformable and its adhesive is a quick-stick. Low VOC (Volatile Organic Compounds) content and non-solvent for less odor. Contributes toward satisfying LEED EQ Credit 4.1 (Low Emitting Materials). Made in the U.S.

NOTES: Sizes shipped will typically be the tape industry standard metric-cut sizes, i.e. 24mm for each 1 inch of nominal tape width ordered (rolls are approximately 5% narrower than the nominal size). This product's actual size is 48mm x 46m. As with any adhesive tape product it is always the user's responsibility to determine that the product is suitable for their intended use; e.g. if you want to remove a product cleanly from a specific type of substrate please test on an inconspicuous area first.

Technical Information

- Core: 3 inch diameter
- Backing/Carrier: aluminum foil
- Adhesive: acrylic
- Release Liner: paper
- Standards Met: UL723 listed, meets FAR 25.853(a), LEED - EQ Credit 4.1
- Thickness: 3.5 mils (carrier, adhesive) 1.75 mils (carrier)
- Adhesion: 55 ounces per inch (to stainless steel test panel)
- Tensile Strength: 14 pounds per inch (longitudinal)
- Application Temperature: -25F (minimum)
- Service/Operating Temperature: -35F to 260F
- Flame Spread Index: 0
- Smoke Development Index: 0