Fiberglass Supply Depot 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)

I used this product to pour through a small hole into an area that an animal was attempting to dig under my deck. It expands pretty rapidly and you need to get it poured as fast as you can after mixing it. You have maybe a 60 second working time before it takes off. It expands very rapidly and voluminously. It filled the area with decently hard cured material. Just don't put it someplace fragile and confined, it will very happily push out thin wood on its way to full expansion. The end material seems acceptably durable. It builds a thin skin on itself and it's not easy to rip apart or dislodge. The resultant material also sticks aggressively to anything, so make sure you are ok with that. Also, don't get the pre-cured material on your hands; it sticks extremely well to human skin and it will be a pain to get off. Overall a great product for filling spaces!

Used this to insulate around a bathtub and it worked great. The foam expanded exactly as expected and provided a solid, supportive fill without over-expanding or creating pressure issues. Once cured, it formed a dense, durable barrier that helps with both insulation and soundproofing. Just be sure to follow the mixing directions carefully and prep your area—it sets fast. Highly recommend for home projects where a strong, stable fill is needed

Great for tub repairs.. Injecting under tub floors for support, to lift floors up a bit, prevent tub floor sagging. Also great for injecting into inner tub walls to use as a backer for the rest of your repair once it's hardened. Allows one to continue and complete the repair job in one fell swoop.

Works well. Not good for foam filling tires though. It breaks down after a short time.

Measure equal parts into 2 containers. Pour into a 3rd container and stir for 20 seconds then pour into what you want filled. I used this in an aluminum sectional flag pole to make it rigid for use as an antenna mast. Worth noting, when this starts expanding it does it FAST if it’s hot outside. 1 1/2 fluid oz. of each part (3 oz. total) expanded to fill 13 inches of a 2 inch hollow pole and this stuff is hard as concrete but super lightweight. Wear gloves as you don’t want to get any on you and it does heat up when expanding and curing. It only takes 5 minutes or less for full expansion. Expands probably 10x the volume when mixed properly. This is great stuff.

This is a great product and a good value for the money. It expands well when thoroughly mixed and sets very hard once cured. It worked well for foundation washouts, concrete pads, and walkways. Definitely wear gloves during application—it can get messy. Pros: expands well, cures very hard, good value, great for repairs Cons: can be messy to work with Would I recommend? Yes—solid option for concrete and foundation work

No where near the expansion I was hoping for

I use this often. Very strong, hard. Can add more. Plenty of time to mix with wand and pour if access to area is open/accessible. Best to set a cover over, plastic sheet between, and trap it right where you want it. Use lot of weight to hold until set because will “ push out/distort” just put what you need

Works great for my taxidermy molds Expands roughly 4 times liquid amount and is rock solid ( 6lb )

Works extremely well!

This is good stuff, not soft, squishy foam. Very high density and tough

mixing is important, better mix greater yeild better float. liked the shippers percautions adding insulation for candian weather!!

l expension de ce produit est ridiculement petite, innaceptable