The Lentek 12oz Foam Sealant is a versatile, high-performance expanding foam designed for sealing, insulating, and filling gaps and cracks in various applications. This moisture-curing polyurethane foam expands upon application to create an airtight and watertight seal, improving energy efficiency by reducing air leaks and preventing drafts.
Ideal for HVAC, construction, plumbing, and general maintenance, this foam adheres to wood, metal, masonry, glass, and most plastics, ensuring a durable bond that withstands temperature fluctuations and environmental conditions. Once cured, the foam can be trimmed, sanded, and painted for a professional finish.
Whether used for sealing penetrations around HVAC units, filling gaps around doors and windows, or preventing moisture intrusion, the Lentek Foam Sealant delivers exceptional insulation and sealing performance in residential, commercial, and industrial settings.

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