D-90G Dry Powder Developer

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.

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Product Information

Penetrant System Category:

Developer Type – Dry Powder Form A – Fluorescent

Approved for use with: All fluorescent penetrants

Competitor Equivalent Cross Reference
Ardrox 9D4A
Magnaflux ZP-4B


SAE AMS 2644 & QPL – Method A; Method B; Method C; Method D; Method E

ISO 3452-2

ASTM E1417, E165

AMS 2647


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