How is Murus polyurethane different than other manufacturers’ foam?
The properties and characteristics of Murus Polyurethane are superior to Isocyanurate and Polyisocyanurate foams typically produced by board stock manufacturers and some other SIP manufacturers. Murus’s proprietary manufacturing method, Uniform Dispersion Molding (UDM) is key to creating Murus SIPs’ superior characteristics. Each panel is manufactured (molded) independently. Liquid foam is dispersed uniformly throughout the panel mold. The foam expands, exerting up to 14 psi of pressure which is contained by the mold. During the expansion and containment process, the foam permanently bonds to the panel skins. The spherical cells produced by the UDM method provide uniform foam density throughout the panel, thus giving the foam superior and uniform strength, unlike the elongated, rice-shaped cells typically produced through the faster running continuous lamination lines in the production of Isocyanurate and Polyisocyanurate foams.
