Looking for specific product?

Not sure what product to use?

We are glad to assist you and give you the best tape you need.

Ask our Experts

ABI Products Division

Check out the links to know more about our tape products division

Hvac-Insulation > HVAC

Ideal Seal 490

UL 181 Listed Products

Ideal Seal 490 is a heat activated foil tape that offers a consistent and dependable closure method for fiberglass duct board systems. The product is made with a laminated aluminum foil/fiberglass skrim backing, and a heat activated adhesive system. UL 181-A listed for use on all fiberglass duct board insulation systems.


BackingAluminum Foil
Total thickness7.0 mil / 0.18 mm
Tensile strength25.0 lb./in. / 109 (N/25mm)

Suggested end use

Ideal Seal 490 is designed for use in sealing joints and seams in fiberglass duct board insulation systems. Use of an approved heating iron or closure machine is recommented to achieve maximum performance.