Cost-Effective Triple Expanding Foam

Cost-Effective Triple Expanding Foam

LENTEK™ Insulating Foam Sealants is an effective solution for filling, sealing, and insulating gaps with a long-lasting, triple-expanding foam. These high-quality foam sealants provide a straightforward and cost-efficient way to eliminate unwanted airflow and enhance energy efficiency.

With its exceptional ability to adhere to various surfaces such as wood, metal, masonry, glass, and other common building materials, LENTEK foam can be used to insulate a variety of gaps and cracks. This professional-grade sealant also exhibits remarkable sanding, painting, and staining capabilities.

Whether it’s sealing gaps in new construction or retrofitting existing structures, LENTEK Insulating Foam Sealant is a valuable tool for achieving air-tightness, reducing energy consumption, and ensuring overall building integrity. By sealing gaps and cracks in attics and walls, the insulating foam helps keep insects, moisture, condensation, and allergens out of residential and commercial buildings.


  • Triple expanding to fill, seal, and insulate gaps and cracks

  • Long-lasting, airtight, and weather-resistant seal

  • Helps keep insects, moisture/condensation, and allergens out

  • Adheres to wood, metal, masonry, glass, and most common building materials

  • Interior/exterior use

  • Paintable, stainable, and sandable

  • Cream-colored foam for easy identification

  • UL classified

  • No CFCs or HCFCs


  • 2299120, Natural Color, 12 FL OZ, 12 units per case

LENTEK™ Insulating Foam Sealant is in stock and ready to ship within two business days. To order, call 270-765-2212 or email orders@LentusLLC.com.

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