3M 3340 Aluminum Foil Tape, Silver, 2-1/2 in x 50 yd, 4.0 mil, HVAC Sealing and Patching Ducts, Fiberglass Duct Board, Insulation, Metal Repair (7100189974) (20 Pack)
Bulk Pricing Available
Bulk Pricing Available
Need to place a large order? Request a quote
3M 3340 Aluminum Foil Tape, Silver, 2-1/2 in x 50 yd, 4.0 mil, HVAC...
Description
Description
3M 7100189974 Description
Durable aluminum foil tape for HVAC applications with strong acrylic adhesive, excellent temperature resistance from -40 F to 300 F, and UL 181A-P/181B-FX listings. Ideal for sealing fiberglass duct board, flexible air ducts, and general metal repair.
3M 7100189974 Includes
- (1) Aluminum Foil Tape Roll, 2.5 in x 50 yd
3M 7100189974 Features
- Strong acrylic adhesive for long-term bonding
- Operational temperature range -40 F to 300 F
- Low moisture vapor transmission for reliable sealing
- Conforms to irregular surfaces for consistent application
- UL 181A-P and UL 181B-FX listed for duct closure
- 2.0 mil aluminum foil backing; silver color
3M 7100189974 Specifications
| Product Number | 3340 |
| Width (in) | 2.5 |
| Length (yd) | 50 |
| Color | Silver |
| Adhesive Type | Acrylic |
| Backing Thickness (mil) | 2.0 |
| Elongation at Break | 10% |
| Tensile Strength | 29 lb/in |
| Temperature Range | -40 F to 300 F |
| UL Listing | UL 181A-P; UL 181B-FX |
WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
-
400K Square Feet of Warehouse Space
With over 400,000 square feet of warehouse space, Pro Work Supply is built for speed and scale. We are a full service retailer of 3M tapes, abrasives, hearing protection, and adhesives - so you get what you need, when you need it.
-
Real Support from Industry Pros
When you call Pro Work Supply, you're talking to experienced professionals—not a call center. Our team understands the products and the jobsite demands. Whether it's a spec check or a bulk quote, we deliver answers fast and service you can count on.
-
Contractor Partner
From one-man crews to large-scale builders, our sales team is on hand to support contractors at every level. Need bulk pricing? Bidding a job? Our team works directly with you to quote high-volume orders, assist with 3M material lists, and keep your projects on schedule. We know what's at stake when time and accuracy matter.
