Expanding Foam Sealant

5 reviews Write a Review
Price $6.29


Our commercial grade expanding foam sealant is a unique closed cell product that keeps air and moisture out. Closed cell foams are more rigid than open cell foam which creates a better seal. Expanding foam is excellent for filling cracks, sealing voids, and insulating space around wires, rim joists, attics, and basements. It comes with an applicator nozzle for precision application and even distribution.


Priced per can or buy in case quantities of 12 per case. 


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5 Reviews

  • Posted by Sandy on Mar 20th 2022


    Worked Very Well

    This expanding foam worked very well for my purposes. It was easy to apply, and I was able to trim it as needed with an exacto knife after about an hour. I'm very happy with the outcome.

  • Posted by Jeff Fehrenbach on Nov 8th 2020


    Expanding Foam sealant

    Expanding foam sealant worked great just as described and this company was excellent to deal with. I will definitely be back to purchase more products.

  • Posted by Allan D Shepard on Sep 6th 2020


    expanding foam sealant

    Very good product. Price is affordable and worked as advertised. Thank you.

  • Posted by Rick Barr on Aug 10th 2020



    Product works great. closed cell does not absorb water

  • Posted by John Morris on Apr 25th 2017


    Project 1 Foam Receives Endorsement from Morris Heat and Air has endorsed Silicone Depot's canned closed cell foam product labelled Project 1. Morris Heat and Air is a full service heat and air company specializing in Home Performance. Needless to say, Morris Heat and Air uses copious amounts of this foam on their customers' homes. Morris Heat and Air uses this foam to seal wall plates, fill gaps in plenums, seal ceiling diffusers to drywall, seal plumbing penetrations, repair disrupted encapsulation due to mechanical work, and much much more.