Featured Tip
Sealed for Life: Rolled Mastic Sealants That Outperform Tape and Liquid
Duct leakage can waste 25–40% of HVAC system performance, driving up energy costs and damaging equipment and air quality. Hardcast® rolled mastic sealants deliver instant adhesion, zero dry time, and UL-181BFX code-approved performance—without the mess of liquid sealants or the failures of tape.
From hospitals to resorts, contractors rely on rolled mastic to seal it right the first time, even in corrosive or high-UV environments like the Rosen Shingle Creek project, where Hardcast repairs eliminated leaks and restored long-term system integrity.