Product Overview

The Weld-On P-68 Purple Primer Quart | 10210 is a fast-acting, low-VOC primer designed to prepare PVC and CPVC pipe and fittings before solvent cement application. Its purple color provides visible confirmation that primer has been applied, which is often required by plumbing code inspections.

P-68 softens and prepares pipe and fitting surfaces so solvent cement can penetrate properly and form a strong, fused joint. It is suitable for use with compatible PVC and CPVC pipe across many plumbing, pool, spa, irrigation, and industrial applications. Weld-On describes P-68 as a low-VOC, fast-acting primer for PVC and CPVC pipe and fittings, available in purple for easy application identification.

Ideal For

• Pool plumbing installations
• Spa plumbing repairs
• PVC pipe and fitting preparation
• CPVC pipe and fitting preparation
• Irrigation systems
• Equipment pad plumbing
• Pressure plumbing systems
• Drain, waste, and vent applications where approved
• Residential plumbing work
• Commercial plumbing work
• Code-inspected jobs requiring visible primer
• Professional plumbers and pool contractors

Key Features

• Purple primer formula — clearly shows where primer has been applied.
• Quart-size container — 32 oz can for professional and repeated job-site use.
• Fast-acting surface preparation — rapidly softens PVC and CPVC joining surfaces.
• Low-VOC formula — designed with reduced solvent emissions compared with older high-VOC products.
• For PVC and CPVC pipe and fittings — suitable for compatible plastic piping systems.
• Non-bodied, water-thin consistency — penetrates quickly into pipe and fitting surfaces.
• Supports strong solvent-weld joints — prepares surfaces before applying compatible PVC or CPVC cement.
• Code-compliant application visibility — purple color helps inspectors verify primer use.
• Suitable for many pipe schedules and classes — used across compatible PVC and CPVC applications.
• Professional plumbing product — made for contractors, pool builders, irrigation installers, and service technicians.

Benefits

The Weld-On P-68 Purple Primer helps create cleaner, stronger solvent-weld joints by properly preparing PVC and CPVC surfaces before cement is applied. Without proper primer use, solvent cement may not penetrate the pipe and fitting surfaces as effectively, which can lead to weak joints, leaks, or failed plumbing connections.

The purple color makes application easy to verify, which is helpful for both installers and inspectors. The quart size is ideal for contractors and pool professionals who regularly work on equipment pads, plumbing repairs, new pool construction, irrigation systems, and PVC installation jobs.

For pool and spa plumbing, P-68 is a practical shop and service-truck essential for professional solvent-weld PVC work.

Specifications

Included Components

• 1 × quart can of Weld-On P-68 Purple Primer

PVC cement, CPVC cement, pipe, fittings, applicators beyond supplied cap/dauber where applicable, cleaner, gloves, and installation labor are sold separately unless specifically included by the supplier.

Compatibility Notes

Weld-On P-68 Purple Primer is designed for compatible PVC and CPVC pipe and fittings.

Common applications include:

• Schedule 40 PVC
• Schedule 80 PVC
• Compatible CPVC piping
• Pool and spa plumbing
• Irrigation piping
• Equipment pad plumbing
• Residential and commercial plumbing systems

Always verify the pipe material, cement type, local plumbing code, and manufacturer instructions before use.

Application Notes

Cut pipe square and remove burrs before applying primer. Dry-fit the joint first to verify alignment. Apply primer to the pipe and fitting socket according to label directions, then apply the correct solvent cement while the surfaces are properly prepared.

Join pipe and fitting immediately after cement application, insert fully, rotate slightly if recommended by the cement instructions, and hold briefly to prevent push-out. Allow the joint to cure fully before pressure testing or placing the system into service.

Use only in a well-ventilated area. Keep away from heat, sparks, open flame, and ignition sources.

Safety & Handling Notes

This product is a chemical primer and should be handled carefully. Wear appropriate gloves and eye protection when using. Avoid inhaling vapors and avoid skin or eye contact.

Purple primer can stain surfaces, clothing, decking, concrete, equipment pads, and pool finishes. Keep container tightly closed when not in use and store according to label instructions.

Always read and follow all manufacturer label directions and safety warnings before use.

Customer-Facing Q&A

Q: What is Weld-On P-68 Purple Primer used for?
A: It is used to soften and prepare PVC and CPVC pipe and fitting surfaces before applying solvent cement.

Q: What is the SKU?
A: The SKU is 10210.

Q: What is the UPC / GTIN?
A: The UPC / GTIN is 012181102107.

Q: What size is this container?
A: This listing is for a quart / 32 oz can.

Q: What color is the primer?
A: This is the purple version.

Q: Why is the primer purple?
A: The purple color makes it easy to confirm that primer was applied, which is useful for code inspections and quality control.

Q: Can this be used on PVC pipe?
A: Yes. It is designed for compatible PVC pipe and fittings.

Q: Can this be used on CPVC pipe?
A: Yes. It is designed for compatible CPVC pipe and fittings.

Q: Is this the same as PVC cement?
A: No. Primer prepares the pipe and fitting surfaces. A compatible PVC or CPVC cement is still required to complete the solvent-weld joint.

Q: Is this low VOC?
A: Yes. P-68 is listed as a low-VOC primer.

Q: Can this be used for pool plumbing?
A: Yes. It is commonly used for pool and spa PVC plumbing when installed according to code and manufacturer directions.