After wash, parts get dipped in dye penetrant.
POLYPLUS PRIME® was developed in order to solve the green glowing background issue with dye penetrant testing. Type V and Type II leave a residue on the surface of the parts being stripped which is not visible to the naked eye. Even after the parts have been run through a wash cycle they still have the residue left behind from the blasting process.
Dye Penetrant Friendly Custom Engineered Plastic Media
Wash cycle after stripping process
This part was stripped with POLYPLUS PRIME® which did not leave any residue behind, so the dye penetrant washed off making the part very easy to read.
This part was stripped with Type V. It left a residue behind which absorbed the dye penetrant and causes it to glow green under a black light. This makes the part almost impossible to read.