Fusion Single Step Clear Self-Priming Medium PVC (polyvinyl chloride) Cement. No primer needed on non-pressure DWV (drain waste vent) applications, where local code permits. For use on all schedules and classes of PVC pipe and fittings up to 4 In. and on-pressure applications up to 6 In. with interference fit. Recommended application temperature 40 F (Degree Fahrenheit) to 110 F. Low-VOC (volatile organic compound) meets SCAQMD 1168/316A or BAAQMD Method 40. Meets ASTM D2564 – Clear Color. Thicker formula than other cements.