The insulating capability of TotalBoat Polyurethane Flotation Foam is indicated by the R-value, which measures the ability of a material to insulate (slow the rate of heat flow).

- The R-value for TotalBoat 2 lb. Density Polyurethane Flotation Foam is 6.5 to 6.6
- The R-value for TotalBoat 6 lb. Density Polyurethane Flotation Foam is 5.0 to 5.5

These R-values are based on 1 inch of fully cured polyurethane foam. You can multiply the R-value for each foam density by the thickness (in inches) of the foam to determine the R-value for a specific application.

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