Weld-On P-70 Purple Primer 16 oz Can 13995

Weld-On P-70 Purple Primer for PVC and CPVC

This Weld-On P-70 purple primer prepares PVC and CPVC pipe surfaces for solvent cement bonding. The 16 oz can supplies enough fluid for multiple joints in residential or light-commercial plumbing work. It meets ASTM F656 and carries NSF and UPC listings for code compliance. Professional plumbers and DIY installers use it to ensure reliable adhesion before applying cement.

Check pipe material and local code acceptance

Verify that the piping system uses PVC or CPVC, as this primer is formulated specifically for those materials. Confirm that the authority having jurisdiction accepts ASTM F656 primers with NSF and UPC markings for the intended application. Ensure the container size matches the project scope so that fresh primer is available for every joint. The product ships without restriction to the listed states.

Behaviour during extended joining sessions

The purple tint remains visible on the pipe surface, allowing the installer to confirm full coverage even after many connections. Consistent viscosity helps maintain uniform film thickness across repeated applications without thinning. The solvent blend is designed to soften pipe walls predictably over the working period required for larger installations. Proper resealing between uses preserves the primer’s effectiveness for the duration of the job.