Solvent Welding Special Precautions

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Engineering Info

WELD-ON® SOLVENT CEMENTS MUST NEVER BE USED IN A PVC OR CPVC SYSTEM USING OR BEING TESTED BY COMPRESSED AIR OR GASES!
Do not use any type of dry granular calcium hypochlorite as a disinfecting material for water purification in potable water piping systems. The introduction of granules or pellets of calcium hypochlorite with PVC and CPVC solvent cements and primers (including their vapors) may result in a violent chemical reaction if a water solution is not used. It is advisable to purify lines by pumping chlorinated water into the piping system – this solution will be nonvolatile. Furthermore, dry granular calcium should not be stored or used near solvent cements and primers. All systems should be flushed before start-up to remove excess fumes from piping system.

New or repaired potable water systems shall be purged of deleterious matter and disinfected prior to utilization. The method to be followed shall be that prescribed by the health authority having jurisdiction or, in the absence of a prescribed method, the procedure described in either AWWA C651 or AWWA C652.

CAUTION:
• USE CEMENTS AND PRIMERS ONLY IN WELL VENTED AREAS
• SEE MSDS SECTION II (AVAILABLE ON REQUEST) FOR EXPOSURE LIMITS AND FIRST AID INSTRUCTIONS
• CEMENTS AND PRIMERS ARE VOLATILE, KEEP AWAY FROM ANY SOURCE OF IGNITION