An ideal plumbers grease, designed to lubricate rubber, plastics and other materials. Suitable for use on taps, valves and other water fittings. Complies with UK water fitting bylaws. WRAS approved. This time saving silicone lubricant is for use with UPVC, Push-Fit Soil, Waste drainage and underground discharge systems. Suitable for use on potable water systems. Resistant to interaction with other chemicals. Water repellent and non-melting for use when in contact with potable water.