Xirtec 7 Clear Low VOC PVC/CPVC Primer – NSF ASTM F656 Solvent Weld Primer

Xirtec 7 Clear PVC Primer Low VOC – Aggressive Surface Preparation for PVC & CPVC Solvent Welding

Xirtec 7 Clear PVC Primer Low VOC is a high-performance surface preparation product designed for fast, reliable solvent welding of PVC and CPVC pipe and fittings. Engineered as one of the most aggressive primers available, Xirtec 7 effectively softens and pre-conditions pipe surfaces to ensure maximum bond strength and long-term joint integrity.

This primer is NSF listed to ASTM F656 for potable water and sewer applications, making it suitable for residential, commercial, and industrial piping systems. Its aggressive formulation makes it ideal for cold-weather installations, high-pressure systems, large-diameter pipe, and any application where superior penetration and material softening are required for a strong solvent-welded joint.

Available in 1/4 pint (118 ml), 1/2 pint (236 ml), 1 pint (500 ml), and 1 quart (946 ml) sizes, Xirtec 7 is compatible with all standard PVC and CPVC solvent cements and is suitable for use in plumbing, irrigation, water treatment, and municipal piping systems.

Key Features

• Most aggressive PVC/CPVC primer commercially available

• NSF listed to ASTM F656 for potable water and sewer pipe

• Low VOC formulation suitable for regulated regions

• Ideal for cold-weather applications and joint preparation

• Softens and conditions pipe and fitting surfaces for optimal solvent welding

• Compatible with all standard PVC and CPVC solvent cements

• Available in multiple container sizes for any job site requirement

Frequently Asked Questions (FAQs)

What is Xirtec 7 used for?

Xirtec 7 is used to prime PVC and CPVC pipe and fittings before applying solvent cement. It cleans, softens, and prepares the surfaces to create a strong, reliable welded joint.

Is this primer approved for potable water systems?

Yes. It is NSF listed to ASTM F656, making it approved for use on potable water lines, sewer applications, and other pressure and non-pressure systems.

Why is Xirtec 7 described as “aggressive”?

Because it softens PVC and CPVC surfaces more effectively than standard primers, creating better penetration of the cement and stronger welds—especially helpful in cold weather or on large-diameter pipe.

Is this primer needed for every PVC or CPVC installation?

It is recommended for all solvent-welded joints, and required by many plumbing codes, especially when:

• Working in cold environments

• Joining CPVC

• Installing high-pressure systems

• Ensuring maximum bond strength

Can Xirtec 7 be used with any brand of solvent cement?

Yes. Xirtec 7 is compatible with all industry-standard PVC and CPVC solvent cements.

Does it have a color?

This is the clear version, preferred when a clean, non-visible application is desired.

Is this a Low VOC primer?

Yes. It is formulated as Low VOC, meeting regional emissions regulations and job site requirements.

What sizes are available?

Xirtec 7 Clear PVC Primer Low VOC is available in:

• 1/4 pint (118 ml)

• 1/2 pint (236 ml)

• 1 pint (500 ml)

• 1 quart (946 ml)

Is this primer suitable for sewer pipe applications?

Yes. It is NSF listed for both potable water and sewer applications.

Can it be used in cold weather?

Yes. Xirtec 7 is specifically noted as an excellent choice for cold-weather installations, where material softening is more difficult.