Met-L-Chek D-78B is a water suspendible inspection developer used with either fluorescent or visible penetrants
Qualified Products List for AMS-2644 as a form "c" developer.
Meets the requirements of:
- AMS-2647, ASME
- Boiler and Pressure Vessel Code, ASTM E-165, and ASTM E-1417
Supplied as a powder which is mixed with water, that does not dissolve and applied to the part after the surface penetrant is removed and prior to drying.
Generally applied by immersion, dip, gentle flow on, or airless spray.
The developer must be continually mixed to prevent it from settling out of solution.
Parts must be dried in a heated drier to form developer film.
Low in Sulfur and Halogens, making it safe for use on most metals.
Cross Reference Penetrant Chart - click on the links for more information