The foam-in-place process is a reaction of polyurethane chemicals that creates foam, which is used to fill voids in either a cut-and-sewn laminate part or between two parts of a mold.
In cut-and-sewn parts, the Dureflex® polyurethane film serves as a barrier to prevent the reacting polyurethane foam from penetrating the laminate. As the foam fills the void, it bonds with the film on the inside of the cut-and-sewn laminate, giving the outer laminate skin a tight fit to the foam.
In molded parts, the film is stretched into all contours of the mold as the foam expands, providing excellent protection to the mold from the polyurethane chemistry. Additionally, it provides a well-bonded moisture and contamination barrier for the final foam part.
Applications where Dureflex® film may be used with foam-in-place technology include: seat cushions; headrests; armrests; shoe inserts; and architectural moldings.
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