Carlisle helps HVAC systems work smarter, not harder.
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Engineered for HVAC systems changeouts and installations, Hardcast® foil-backed pressure-sensitive rolled sealants bond to metal instantly. Plus, there's no mess or cure time−you can perform pressure tests right away! These sealants have a 17-mil consistent thickness and are Zero-VOC and UV-resistant. Whether you're sealing galvanized sheet metal, flex duct, or PVC-coated surfaces, Hardcast® rolled sealants ensure a durable, long-lasting seal in all seasons.
Efficiency Begins with the Right Seal:
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Carlisle HVAC Brands is a unified family of the best HVAC products and solutions. Dynair, Hardcast, and Gripnail are storied brands with a history of high-quality products and high-quality customer service. These products help you meet requirements by providing not only the longest lasting duct sealing options, but also the best airflow management hardware. Ask us how we can help you make your HVAC system perform at peak efficiency.
Oct 9, 2025 — Products & Services Update
Dec 9, 2025 - We’ve revamped our website with an easier, more user-friendly design. Plus, with our new document search feature, users can quickly find the document they need.
Dec 9, 2025 - We are pleased to announce the release of the new CDP Cable-Operated Dampers for use on Titus products.
Dec 9, 2025 - Powered by the POWERSTATE™ Brushless Motor, the M18 FUEL™ 4-1/2" / 6" Dual-Trigger Braking Grinder delivers 13A corded performance and achieves up to 135 cuts in ½” rebar on a single charge.