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Seal out energy loss and help improve comfort by closing the gap between the framework and rough openings with GREAT STUFF™ Window & Door Insulating Foam Sealant. The low pressure-build formulation of GREAT STUFF™ Window & Door Insulating Foam Sealant forms a durable, airtight and water-resistant seal between a window or door frame and its rough opening.

Fill the gaps ... and crack down on energy loss with GREAT STUFF Gaps & Cracks Insulating Foam Sealant. By air sealing homes with GREAT STUFF Gaps & Cracks, you’ll be providing a valuable service for your customers, helping to seal out energy loss, lower energy bills and provide a more comfortable home.


This series of videos gives you a first hand look at how to use Lentus products properly and gives you tips to get the most out of the tools you use. 

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