D-90G is a dry developer powder used with Sherwin “RC” and “HM” designated flourescent penetrants. It amplifies the location of cracks, pores, and similar flaws by multiplying fluorescent brilliance. It also assists penetrant re-bleed back to the part surface, and stabilizes indications. The product m eet low-sulfur, low-halogen, and low-sodium requirements.
Penetrant System Category
Developer Type Dry Powder Form A – Fluorescent
Approved for use with: All fluorescent penetrants
QPL SAE AMS 2644 Method
ASTM E1417, E165