D-100 Developer (nonaqueous): Approved MIL-1-25135/AMS-2644 for both Type I and II penetrants. (Also, approved Groups I through VII.) Adsorbent white particles suspended in volatile solvent (alcohol). Maximum sensitivity. Lays on surface in thinner, more uniform coat. Flash point about 60°F. Apply by spraying. Meets all applicable codes and standards.
D-106 Developer (nonaqueous): Approved MIL-1-25135-E/AMS-2644 for Type I and Type II penetrants. Adsorbent white particles suspended in volatile solvent. Lays on surface in thinner, more uniform coat. Apply by spraying. Meets all applicable codes and standards.
D-350 HI-TEMP* Developer: Nonaqueous. Hi-Temp D-350 is used with Hi-Temp KO-17 Penetrant and Hi-Temp KO-19 Remover. White adsorbent particles suspended in nonchlorinated, volatile solvent (alcohol). Available only in spray cans. Performs on elevated temperature surfaces; 200°F to 350°F. Approved Group I and III under MIL-1-25135-C.
Dry Powder D-90G Developer: Approved "form a." Low sulfur and low halogen. Excellent surface cling.
D-113G.1 Developer (water soluble): Approved "form b." Low sulfur and low halogen. A powder which dissolves completely in water, typically one pound per gallon. After application and drying, it forms a uniform, thin white coat on the surface. Normally, only used with nonwater-washable penetrants.
D-110A.1 Developer-approved "form c" developer. Low sulfur and low halogen. A powder typically mixed with water at one pound per gallon to form a suspension. After application and drying, D-110A.1 leaves a uniform, thin, white coating on the surface. Exercise care in choosing the proper circulating equipment for keeping developer particles in suspension.
Special Note: In accordance with MIL-1-25135/AMS-2fj44, MIL-STD-6866, and ASTM E-1417, developers are outside of the "family," or same brand, concept. All Sherwin developers may be used with any QPL-approved penetrant systems.