'Nashua 322' is out of stock and not currently available for purchase on the site.

Product Description

Nashua 322 General Purpose Foil Tape has a 2-mil thick aluminum foil backing and is specially designed for taping joints and seams against moisture and vapor on foil jacketing insulation. This tape is appropriate for a variety of insulation uses such as air-conditioning, heating and ventilation systems. Nashua 322 is used in the automotive industry for general purpose repairs.

Nashua 322 General Purpose Foil Tape has excellent conformability to curved surfaces like corners and joints and has excellent quick stick adhesion (very high tack). Nashua 322 is UV and moisture resistant, mold and mildew resistant, and UL 723 Classified (meets flammability requirements for use in construction and marine applications). The synthetic rubber adhesive of Nashua 322 is non-solvent for less odor and low VOC content and has good performance in all-weather conditions. Country of Origin: United States.


Technical Information

Nashua General Purpose Foil Tape - 2 mil Linered (322)
  • Standards Met: UL723 classified; can contribute toward satisfying EQ Credit 4.1 (Low Emitting Materials) under LEED
  • Carrier/Backing: aluminum foil
  • Adhesive: synthetic rubber   How are adhesives different?
  • Release Liner: unbleached natural Kraft paper
  • Thickness: 5 mils (carrier, adhesive) 2 mils (carrier)   What is mil thickness?
  • Adhesion: 130 ounces per inch (to stainless steel test panel)
  • Adhesion to Backing: 100 ounces per inch
  • Tensile Strength: 15 pounds per inch (longitudinal)
  • Service/Operating Temperature: 40°F to 200°F
  • Core: 3" diameter
  • Smoke Developed Index: 15
  • Flame Spread Index: 10
  • VOC Content: < 1 g/L
  • Country of Origin: United States
Note: Specifications are those given by manufacturers and are not tested for accuracy.

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Question & Answers

User Reviews

[ viewing reviews 1 through 1 of 1 total ]
Sue C. Verified Buyer Sep 06, 2018
Silver tape
Nashua 322 General Purpose Foil Tape - 2 mil Linered [Overstock]
I use silver duct tape for fine arts projects. Recent trade regulations on aluminum have resulted in sky high prices and cut backs on production. Your company helped me find the type and size tape I needed. I was very willing to pay the price for an otherwise unavailable product.
Made in the USA
hot melt rubber (synthetic)
Offers the widest range of application flexibility available. Exhibits excellent processing performance whether manually or automatically applied. Has superior tensile strength, adhesion properties and holding force which ensures consistent, reliable seals. Hot melt adhesive will bond faster to a surface which is referred to as quick-grab or quick-stick. It typically has higher tack (will feel stickier to the touch), but is also softer. It has lower heat resistance, shear resistance, and sometimes UV resistance than an acrylic adhesive. NOTE: it is called hot melt because the adhesive is applied hot by the manufacturer and then hardens as it cools (you do not need to apply heat to the tape yourself).
natural rubber
Properties are similar to that of hot melt rubber, but natural rubber often holds where other adhesives won't (recycled fibers, dust, cold, heat and heavy loads). It provides good overall adhesion and moisture resistance.
Offer excellent performance, especially for applications in temperatures less than 40°F and greater then 120°F. It provides excellent clarity, has high shear strength, is usually more permanent/durable even when exposed to moisture, and it ages well over extended periods in fluorescent and sunlight. Since it remains clear for the life of the application and does not yellow over time it is ideal for applications such as sealing white cartons. While it has good initial adhesion it does take 24-48 hours to cure and to achieve its maximum bond strength (has gradual adhesion buildup). Another difference between hot melt rubber and acrylic adhesive is if you fold tape over making the two adhesive sides touch the acrylic adhesive will remain attached to the carrier (e.g. paper, film) while a hot melt adhesive will stick to itself and pull off of the carrier. It is the best choice for clarity, UV resistance and aging characteristics.
Is great for extreme temperature applications since silicone adhesive can work in continuous operating temperatures from -100°F to 500°F. They also exhibit good chemical resistance, retain electrical properties, and remove cleanly with little or no residue.
zinc oxide
Zinc oxide based adhesive formula is a skin-friendly adhesive which is commonly used on sports medicine tapes.
Thickness, AKA caliper or gauge, refers to the distance from one surface of a tape backing, or adhesive, to the other.
1 mil = 1/1000 of an inch
Examples: 1/16 inch = 62.5 mils; 1/32 inch = 31.25 mils
The cut level indicates how many grams of cutting load a glove can withstand from a sharp blade before being penetrated.
Lower gauge gloves are heavier - have thicker construction, fewer stiches knitted per inch and offer less dexterity.
Higher gauge gloves are lighter - have thinner/finer construction, more stitches knitted per inch and offer more dexterity.
Gloves offered typically runs from 7 to 18 (12 and 13 are in the middle of the scale).
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