... noise-resistance ,heat-insulation and etc Haozheng PU foam sealant is made of high quality polyurenthane material, this product ... stored at 20 oCFeature:lConvenient usage ,specialized worker needless special train, can DIY.lAutomatism spray, needless pouring. pressure ... installation and absorption, insulate and absorb sound as a sealant in speech room and broadcast studiolGardening, Portable and ...