BJB TC-277

4 LB FLEXIBLE FOAM TC-277 is a two-component, flexible polyurethane foam.  The cured material feels similar to foam sandals.  BJB’s 6800 Series Pigments may be added to the “B” side for developing a wide range of colors.  End users can adjust firmness with a slight ratio change as listed below.  Common applications are prototypes, prosthetics, medical training devices, movie special effects props and more. This material is frequently molded behind BJB’s flexible polyurethanes. TC-277 TDS Notes: TC-277 at a ratio of 75/100 pbw produces a firm, quick recovery foam.  At 60/100 pbw, the result will be a slightly softer foam.   For best results using self-skinning foams, BJB recommends using rigid mold materials like our TC-1630 and TC-1650/1651 instead of silicone molds.   Density is based off of free-rise, unrestricted samples. Typical castings in a closed mold with back pressure will increase density and reduce expansion rate. This will often require up to 1.5 to 2.5 times more foam