304100 – ROLLED MASTIC SEALANT TAPE (3″ x 100′)

Rolled mastic tape combines the ease of tape application with the sealing performance of mastic. Peel and stick — no brushes or mess. The butyl adhesive creates an instant, water-resistant seal on metal, fiberglass, and flex duct connections.

Specs: 3″ wide x 100′ long, 17 mil thickness, modified butyl adhesive, aluminum foil backing

Replaces: 304100-HC, 1580-P

Fits: Universal — seals sheet metal, fiberglass ductboard, and flex duct joints and connections

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• 1580-P
• 304100-HC
• HARDCASTEQUIVALENT
• NASHUAEQUIVALENT
• POLYKENEQUIVALENT

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.