E-Z Weld Heavy Body White is an extra heavy bodied, slow set PVC Solvent Cement. This cement is part of our Industrial Grade line of products. Specially formulated for large diameter pipe up to 30″ (750 mm) and applications requiring gap filling.. It is viscous (thick) and, carries very good gap filling properties. This cement is ideal for joining large diameter PVC / uPVC pipes & fittings where the gap between pipes and fittings is large. It may also be used on small diameter pipes and fittings. This cement requires a longer cure time. When joining large diameter pipe & fittings the use of primers is highly recommended.