FPPI WeldFit® APS has been specifically engineered for use as a porosity sealant for most metallic surfaces found in fire sprinkler systems. For sealing "pin hole" leaks or used as part of quality control process in a fabrication operation. See additional information in online technical data sheets. Do not use on CPVC systems, pipe or fittings.
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WeldFit APS Anaerobic Sealant Datasheet
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