- Hercules® Below Zero-PVC Regular Body Fast Set Clear Cement is recommended for potable water, pressure pipe, conduit and DWV applications. It can be used down to -10 °F (-23 °C)/4°C to 43°C and is easy to apply with included in-lid dauber. This clear, regular bodied, fast set cement can be used to solvent weld all schedules and classes of PVC pipe and fittings up to 6 in. diameter with interference fit. Behold the power of Hercules®, products built to last and trusted by plumbers to withstand even the toughest conditions.