Siplast believes that no one product is appropriate for every use. Different conditions require different solutions. So, in addition to SBS-modified bitumen roofing materials, Siplast manufactures a line of polymethyl methacrylate (PMMA) liquid resin products for roofing and waterproofing applications. The products offer the application convenience of liquid-applied systems while meeting Siplast’s uncompromising performance standards.