3M Foil Tape [UL 181 A & B listed / Linered] (3340)
Before ordering, please read the "Product Description & Specs" tab content for more information about this item.
ITEMS ON BACKORDER: *** you can choose to be notified via text when items are back in stockThe following are expected in approximately 23 day(s):
Color/Size: SILVER 2-1/2 in. x 10 yds.
Product Description
3M 3340 Foil Tape is a high temperature, high strength aluminum foil tape coated with a cold weather acrylic pressure sensitive adhesive. This tape is constructed using a 2.0 mil aluminum foil backing with a strong, pressure sensitive acrylic adhesive for long-term adhesion, along with an easy releasing poly coated kraft paper liner to protect the adhesive and keep the tape ready for use. The aggressive acrylic adhesive performs in both cold and hot temperature conditions.
An essential requirement for sealing ducts and other surfaces for heating, ventilation and air conditioning systems is foil tape that can stand up to hot and cold temperatures. The foil backing of 3M 3340 serves as an excellent barrier against moisture, dust, and many chemicals. The very low moisture vapor transmission rate makes the tape a good sealant and the acrylic adhesive supplies superior temperature and UV resistance to give you a strong, lasting, and reliable bond.
3M Foil Tape is used in industries such as transportation, metalworking, construction, automotive, military and government, general industrial, electronics, aerospace, and more.
Product Applications
- High performance duct closures
- High strength aluminum foil backing is ideal for rigid duct board and flexible duct
- Vapor seal on reinforced fiberglass duct board
- Excellent for hot and humid conditions
- Excellent performance and durability in any weather conditions
- Cold weather adhesive
- No special tools or process required for application
Product Features
- 2.0 mil aluminum foil backing
- Listed for both UL181A-P and UL181B-FX
- Replaces mechanical fasteners for rigid duct board
- Thermally conductive backing helps heating and cooling efficiency
- Permanent acrylic adhesive
Country of Origin: United States.
Technical Information
3M Foil Tape (3340)
- Standards Met: UL181A-P and UL181B-FX Listed
- Carrier/Backing: high-strength aluminum foil
- Adhesive: acrylic How are adhesives different?
- Release Liner: poly coated kraft paper
- Thickness: 3.9 mils (carrier, adhesive) 2 mils (carrier) What is mil thickness?
- Adhesion: 60 ounces per inch (to stainless steel test panel)
- Tensile Strength: 29 pounds per inch (longitudinal)
- Service/Operating Temperature: -40°F to 300°F
- Elongation: 10%
- Core: 3" diameter
- Country of Origin: United States
Note: Specifications are those given by manufacturers and are not tested for accuracy.
3340 Standard sizes
| ITEM SIZE | ITEM # |
ITEMS PER CASE |
QUANTITY ORDERING |
PRICE PER ITEM |
PRICE PER CASE |
|---|
2-1/2 in. x 10 yds.Actual Size: 60mm x 9m | 3340-D
UPC = 051115690136 | 9 | Single Item (1-8 Items) 1 - 4 Cases (9-44 Items) 5 - 9 Cases (45-89 Items) 10+ Cases (>= 90 Items) | $5.93 $5.63
a 5% discount $5.53
a 7% discount $5.44
a 8% discount | |
2-1/2 in. x 50 yds.Actual Size: 60mm x 46m | 3340/ 02550
UPC = 051111078112 | 9 | Single Item (1-8 Items) 1 - 4 Cases (9-44 Items) 5 - 9 Cases (45-89 Items) 10+ Cases (>= 90 Items) | $28.48 $28.18
a 1% discount $27.71
a 3% discount $27.24
a 4% discount | |
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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.
acrylic
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.
silicone
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
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).