A process for detecting surface cracks in welds using a penetrating dye which seeps in the cracks. When a (white) contrast liquid is applied, the dye leaches into the contrast liquid to reveal the crack. Found on https://www.encyclo.co.uk/local/20707
A process for detecting surface cracks in welds using a penetrating dye which seeps in the cracks. When a (white) contrast liquid is applied, the dye leaches into the contrast liquid to reveal the crack.