Marketing InformationMade by the original manufacturer of Blue Glue, Weld-On® 750 HotWeld™ PVC solvent cement produces strong, reliable pipe joints in wet environments this PVC pipe cement creates a deep fusion between rigid Schedule 40 pipes and fittings with an interference fit up to a 6 in diameter and schedule 80 pipes and fittings up to a 4 in diameter the premium, hot-blue formulation is designed specifically for irrigation, DWV (drain, waste, and vent), pool and spa, plumbing, and non-pressure applications and thanks to its medium-bodied viscosity and fast relative set time, this PVC solvent cement applies smoothly and sets quickly to facilitate efficient PVC welding, even in wet conditions HotWeld™ may be used without primer on schedule 40 pipes and fittings if local code permits.