Flexible foams are available in 3, 5, 10 and 25 lbs densities. They are two-component flexible foams that are strong, versatile and easy to use. A + B mixture expands many times its original volume.
The amount of expansion is depended on the "density" (D= weight/volume). Therefore, the more dense the product, the higher the indicated number. However, because there's more weight per volume, it stays more compact- resulting in less expansion. Here's a cheat sheet for you:
-Flex Foam-IT! III is a 3 lbs/1 cubic foot density Flexible Foam. -Flex Foam-IT! V is a 5 lbs/1 cubic foot density Flexible Foam. -Flex Foam-IT! X is a 10 lbs/1 cubic foot density Flexible Foam. -Flex Foam-IT! 25 is a 25 lbs/1 cubic foot density Flexible Foam.
Here's another tip- if you want something with more detail, pick a higher density foam. If you would like to just fill space and get more your money, pick a lower density foam.
