Weld On P-68 Primer PVC and CPVC primer Low VOC Color: clear Product Description Weld-On P-68 PRIMER is a code-compliant, THF-free primer with a 30% lower solvent emission rate and significantly reduced odorous fumes than the current products in the market ”“ resulting in an improved workplace environment for pipe installers. The P-68 PRIMER is a clear or purple, ultra-low VOC, a fast-acting primer that rapidly softens and dissolves the joining surfaces of PVC and CPVC pipe and fittings prior to the application of solvent cement. Application Weld-On P-68 PRIMER is a code-compliant, THF-free primer with a 30% lower solvent emission rate and significantly reduced odorous fumes than the current products in the market - resulting in an improved workplace environment for pipe installers. The P-68 PRIMER is a clear or purple, ultra-low VOC, a fast-acting primer that rapidly softens and dissolves the joining surfaces of PVC and CPVC pipe and fittings prior to the application of solvent cement. Standards And Certification Listings Meets ASTM F 656 Standard Meets 2023 SCAQMD Rule 1168/316A - low VOC regulations Credit can be earned per LEED (Leadership in Energy and Environmental Design), IEQ Credit 4.1 Certified by NSF International to NSF/ANSI Standard 14 and 61 for use on potable water applications Specifications Color: Clear Specific Gravity: 0.857+-0.04 Brookfield Viscosity: Water Thin VOC Content: Shelf-Life: 3 Years Shelf Life 3 years in tightly sealed containers. The date code of manufacture is stamped on the bottom of the container. The stability of the product is limited by the evaporation of the solvent when the container is opened. Adding of solvents is not recommended and may significantly change the properties of the primer. Quality Assurance Weld-On P-68 Primer is carefully evaluated to assure that consistently high quality is maintained. Fourier transform infrared spectroscopy, gas chromatography, and additional in-depth testing ensure each batch is manufactured to exacting standards. A batch identification code is stamped on each can and assures traceability of all materials and processes used in manufacturing this product. Special Precaution Weld-On solvent cement must never be used in PVC piping systems using or being tested by compressed air or gases; including air-over-water booster. If using in conjunction with flue gas ventilation systems, review the recommendations of the HVAC manufacturer's equipment related to installation and venting. Note that such recommendations may only refer to ASTM standards addressing installation of PVC pipe and fittings, and not to the use of PVC pipe and fittings in flue gas ventilation systems. Also, review the technical information available from manufacturers of PVC pipe and fittings concerning the use of their products in flue gas ventilation systems. Do not use 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 solvent cement 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 hypochlorite should not be stored or used near solvent cement and primers. This product is intended for use by skilled individuals at their own risk. Installers should verify for themselves that they can make satisfactory joints under varying conditions. Detailed directions on making solvent cemented joints are printed on the container label. It is highly recommended that the installer review the instructions supplied by the pipe and fitting manufacturer. Refer to the current Weld-On P-68 Primer Safety Data Sheet for additional safety precautions, first-aid, storage, handling, transportation, and disposal information.