UL 181B-FX Listed film tape for use on Class 1 Flex Duct for connecting, joining, sealing and patching flexible air ductwork . DC 181 features an acrylic adhesive system, high performance in temperatures ranging from -10 F to 210 F, and is clearly printed with the UL Listing to ensure every job is code compliant.
What is class1 duct?
To be identified as an official Class 1 duct, the duct and connector materials must have a flame spread rating of no greater than 25 with no evidence of continued progressive combustion , and a smoke developed rating of no more than 50.
Can I use Class 1 duct tape on a dryer vent?
Don’t use duct tape with dryer vents . The convenience of the modern dryer, whether gas or electric, makes it a household essential for busy homeowners. While readily available, duct tape is not safe for dryer vents; use aluminum foil tape instead.
What kind of tape do you use for ductwork?
Foil-backed tape : This is the best tape for heating ducts. It uses a large amount of acrylic or butyl adhesive to resist drying out and becoming brittle. The metal foil backing also withstands temperature changes without shrinking and failing the way cloth-backed duct tape does.
Why is duct tape not recommended?
The adhesive used in general purpose duct tape is not built to withstand the conditions that HVAC-specific tapes are tested to perform in . Cold and hot temperatures can cause this type of duct tape to flag and fall off, leaving leaks in the system that can result in energy loss and expensive heating and cooling bills.
What is ul181?
UL 181 is a requirement applying to materials in the fabrication of air duct and air connector systems . The differences between an air duct and air connector lie in the testing they undergo by UL and as a result, the allowed uses by code. ... Air Connectors are identified by the round UL label displayed on the product.
Which type of duct should not be allowed to pass through fire rated walls?
Which type of duct should NOT be allowed to pass through fire-rated walls? Flexible duct connector .
Can duct tape be used for dryer vent?
While many homeowners have duct tape lying around the house, we advised against using it on your dryer vents. You shouldn’t use duct tape for your air ducts either . Duct tape is unable to perform the job you want it to as long as other applications.
What tape is heat resistant?
Fiberglass tapes, basalt tapes, and aluminum foil tapes are commonly used in high temperature gasketing, sealing, lagging, thermal insulation, and encapsulation applications around furnaces, ovens, and hot pipes.
Can you use Gorilla tape on dryer duct?
We would not recommend using to seal a dryer vent connection, it is not rated for that type of heat. ... I have used gorilla tape everywhere and would think it will work on a dryer vent. Make it tight and single wrap.
What is stronger than duct tape?
100X STRONGER THAN DUCT TAPE: FiberFix is the solution to all your breaks, tears and cracks. 100 times stronger than duct tape, FiberFix is as strong as steel for a durable and dependable repair.
What can I use instead of duct tape?
- Velcro Straps. ...
- Spray-On Adhesive. ...
- FiberFix Repair Wrap. ...
- Zip Ties. ...
- Mastic.
Should I cover my vents?
You could mess with the air flow.
It will keep pushing air to those vents, and if they’re closed, you could cause a buildup of air pressure and insufficient airflow which could damage your system.
Is the smell of duct tape toxic?
Meaning using duct tape and other products containing polyethylene is safe. However, those who work in a processing plant processing polyethylene could be exposing themselves to eye, skin, and respiratory system irritation due to the hot molten materials being used. When burned, it can produce poisonous fumes .
Is duct tape a fire hazard?
Can duct tape catch on fire? The mesh fabric used to make duct tape is flammable , however, it’s also coated with polythene which isn’t flammable. As rubber isn’t flammable either, this means that the glue used on duct tape is also safe from fire.
