Purple Primer PVC Cement Combo Kit Bundle for Cold Water Pipe Solvent Welding Hongye HY-800K solvent cement, manufactured in Foshan Guangdong under ISO 9001 and ISO 14000 certified management, supplied to distributors and contractors in more than forty countries. Technical Performance Introduction A solvent weld is only as good as the surface preparation under it. This kit pairs a purple primer, formulated to the demands of ASTM F656, with our clear medium bodied cement in