Questions and Answers for Nashua Tape 1.89 in. x 33.9 yd. Foilmastic Sealant Duct Tape

A:  Hi there! While we can't speak on behalf of Hardcast mastic tape, the Foilmastic has a heavy-duty adhesive that is coupled with a thin blue lining which can make removal difficult at times. Instead of cutting the tape and having a smooth edge, we recommend tearing the tape to make a rough, rigid edge and making removal easier. We hope this helps!

A:  The Foilmastic is designed to be used in place of a traditionally applied mastic putty on rigid sheet metal ductwork. The 324A is UL-approved for flexible and rigid fiberglass ductwork.

A:  On the outside layer there is a double sided tape underneath the start of the roll. You will have to pick at the tape underneath the separate the top wrap.

A:  Hi there. This tape could be used on a metal duct instead of a traditional mastic putty. This tape could be suitable to help seal the seams of the metal ductwork but has not been tested to replace large metal panels.

A:  Hello. This tape should not be harmful or toxic to humans when used as instructed.

A:  Hi there, this tape is suitable for a range hood. You may also want to look at https://www.homedepot.com/p/Nashua-Tape-2-5-in-x-60-yd-324A-Premium-Foil-HVAC-UL-Listed-Sealer-Duct-Tape-1542698/100048600 or https://www.homedepot.com/p/Nashua-Tape-1-89-in-x-10-yds-Bath-Fan-Installation-Air-Filter-Duct-Tape-1906078/205033915

A:  This tape could be used to seal registers to sheetrock.