With its heavy-bodied viscosity and good gap-filling properties, Weld-On 782 PVC Plumbing Solvent Cement is the perfect choice for mid- to large-diameter piping systems. This PVC pipe cement creates a deep fusion between pipes and fittings with an interference fit up to a 12-inch diameter and is suitable for all classes and schedules of PVC (including Schedule 80). This gray PVC cement has excellent gap-filling properties, making it an ideal choice for larger-sized pipes in potable water pressure systems, sewers, and DWV (drain, waste, and vent) systems. And thanks to its heavy-bodied viscosity and medium relative set time, this PVC plumbing solvent cement applies smoothly and excels in warm weather and other applications that may demand a longer working time.