ZP-4B is a free flowing, white fluffy powder used as a high sensitivity dry powder developer for Zyglo Penetrants.
ZP-4B comes ready to use, and when applied, it forms as a thin film, enhancing indications of ultrafine discontinuities. ZP-4B's high purity composition allows it to be used in applications where high purity is essential to the testing process.
Heard about Boelube for years. Finally had a chance to try it on several projects. It definitely works well and better than anything else I have ever tried. Would recommend.