Wet-laid chopped strand fiber mat for roofing mat

摘要: A sizing composition for reinforcement fibers that includes one or more film forming agents, a silane coupling agent package, and at least lubricant surfactant is provided. Optional components such as rheology modifiers, fillers, biocides, pH modifiers may also be included. Preferred polymers are amide-based polymers. Additionally, the free of polyvinyl alcohol. The absence alcohol in size reduces eliminates production precipitates from white water wet-laid processes. applied to formed into chopped strand, mats can used variety purposes, including roofing products. Chopped strand sized with inventive maintains improves dry tear tensile strengths compared made commercial does not contain