Quickly bonds PVC pipe and fittings for quick pressurization & maximum productivity. This premium formula bonds in wet, dry or humid weather. Medium body, very fast set & blue in color, it is the industry's fastest acting solvent cement with the most active ingredients. For all classes and schedules of PVC pipe through 6" diameter interference fit; Schedule 80 through 4". Red Hot Blue Glue can be used without a primer for non-pressure systems up to 6" & pressure systems below 4", if local codes permit. Ideal for PVC pipe and fitting applications; potable water, pressure, non-pressure, conduit, drain, duct, DWV, & sewer. Additionally, it is NSF & Uniform Plumbing Code listed. This product is not for use in a system using or being tested with