Urethane Rigid Foam

This two-part liquid, expanding rigid urethane foam is a closed cell, pourable foam, which will resist the absorption of water. The densities shown refer to the weight per cubic foot of expanded foam (12" x 12" x 12"). Once fully cured this foam can be laminated over with any type of polyester, epoxy or vinyl ester resin without melting. This product can be poured in multiple layers with excellent bonding between layers. All expansion rates and times given are temperature critical. Temperatures below 75 degrees F will lower the expansion rate therefore requiring more foam. Ideal working temperature is 75 to 80 degrees F or above.

• Accurate measuring of these products is extremely critical
• Working time before foaming: approx. 45 seconds
• Time before full expansion: approx. 5 minutes

The lightweight foam is commonly used for filling voids, filling under decks and practically any other flotation or insulation application. Higher densities are used for architectural castings, support applications and has virtually an unlimited number of potential uses.

3 LB Density Urethane Foam Common Applications: Can be used as a lightweight foam for carving or sculpting as well as some limited casting applications Gives better detail than  2LB density foam. 4LB density Urethane Foam is suited well for most flotation applications that require more support. This foam is recommended to be used when supporting gas tanks and some deck areas. Choose this density if you feel that the foam will be required to withstand minor to moderate loads. The 4LB density also works well in taxidermy applications as well as many other sculpting, casting, carving and other filling applications.