Zyglo® – Water Based Penetrant = ZL-4C
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Developed for testing materials that can be affected by petroleum-based penetrants, ZL-4C water-based fluorescent penetrant contains no petroleum derivatives and is harmless to materials that can be attacked by petroleum-based solvents, such as plastics. It is also safe for use on ceramics, and it can be used as a leak detector.
ZL-4c is only available in 55 gallon drums. 5 gallon pails are on quality hold due to leaking lids