Food Grade Penetrant FGP-21 is a capillary liquid penetrant with sensitivity 2 which can be used in fluorescent penetrant testing under UV-A or A-blue, as well as in through capillarity for the inspection of heat exchanger plates or any other open & closed circuit in leak detection. It has no anti-corrosion function and is to be preferred on parts and circuits not sensitive to corrosion. Ready-to-use, water-based product.
FGP-21 is authorised for the inspection of parts in contact with food, after total cleaning of all traces of penetrant, according to the recommendations of the NSF USA (NSF Nonfood Compounds Registration Program NSF International | The Public Health and Safety Organization).
