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๐ ๏ธ Expand Your Potential with Foam That Works as Hard as You Do!
Fiberglass Supply Depotโs 4 lb density 2-part polyurethane expanding pour foam offers 4 cubic feet of closed-cell insulation and flotation. Designed for rapid curing and compatibility with multiple resins, it excels in boat flotation, soundproofing, void filling, and crafting applications. Ideal for professionals seeking reliable, high-performance foam with precise expansion control.










| ASIN | B08V5BV9V9 |
| Best Sellers Rank | #87,765 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #300 in Sewing Pillow Forms & Foam #407 in Craft Foam |
| Brand | Fiberglass Supply Depot |
| Brand Name | Fiberglass Supply Depot |
| Coverage | 4 cubic feet |
| Customer Reviews | 4.6 out of 5 stars 55 Reviews |
| Manufacturer | Fiberglass Supply Depot Inc. |
| Manufacturer Part Number | poly4lb2gk |
| Material | Foam,Resin |
| Material Type | Foam,Resin |
| Model Number | 819794022927 |
| Number of Items | 2 |
| Number of Packs | 2 |
| Recommended Uses For Product | Flotation, Soundproofing, Insulation, Filling Voids, Sculpting, Casting |
| UPC | 819794022927 |
| Unit Count | 1 Count |
T**H
Follow the directions
Good stuff. Works well. Read the direction AND HEED THEM! (It hardens FAST)
J**N
Works
Does what it needs to do
M**1
Works as described
Works exactly as described as long as you follow instructions. I did a test batch and it didnโt turn out so good. I then put on a space heater and made sure the temperature was above the recommended 75-80F and mixed the two compounds as instructed. It worked perfectly for my DIY project, couldnโt be happier as it saved me a lot of headache. A word of warning though it hardens very quickly and becomes hard as a rock. Make sure you prepare the surface and block off anywhere you donโt want it to go. Act quickly and it will turn out well, once you pour thereโs no redo.
J**R
This stuff does the job
I was using this to void fill a vintage boat project. This stuff did the trick and was cheaper than some competitors. Listen to the instructions and it will work. After the foam hardens it is very sturdy and wonโt be going anywhere. Yes it is somewhat messy but for an efficient way of void filling it was worth it.
C**D
Follow All Instructions
This product is real good, and it works real fast. Make sure you have everything set up before mixing parts A & B.
T**T
Lots of Rigid Foam per Dollar
Great foam, as described, great deal!
J**E
Good foam
Works as should
V**O
Worked well. Expands a lot!!!
Easy to use. Just make sure you dont mix too much at once. Once mixed, this stuff expands quickly. So, work fast.
F**V
Es un producto excelente
Excelente
R**V
Worked well for my needs.
The price is a little steep but it works really well. Easy to mix, hardens quickly, and expands significantly. The finished product is very hard. Put it in my boat for stability.
Trustpilot
2 days ago
3 weeks ago