QTA
The QE QUALITY new & improved aluminum tape is now a 90 Micron (3.6 Mil) high tensile strength foil combined with a high performance adhesive. The aluminum backing provides excellent reflection of both heat and light, the high quality adhesive offers permanent sealing and bonding on joints and seams in HVAC duct work applications, aging resistance in both indoor and outdoor use, low moisture vapor transmission rate for sealing and patching performance, and wide service temperature range (-22 to 248 °F).

QTK

The QE QUALITY new & improved reinforced aluminum kraft tape is now a 170 Micron 3 way foil / scrim / kraft tape combined with high performance adhesive. The aluminum backing provides excellent reflection of both heat and light, offers a reliable solvent adhesive for durable bonding at both low and high temperatures, epoxy coating adds surface anti corrosion against moisture, and wide service temperature range (-22 to 176 °F).