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Wash primer (formula #117 for metal) three component kit.
Resin Component: Polyvinyl Butyral, Acid Component: Phosphoric Acid Solution, Thinner.

Item #: DOD-P-15328
Rating: Not Rated Yet
Color Green
Viscosity 63 - 75 K. U. Stormer
Gun Atomizing Pressure 45 to 55 lbs
Pot Fluid Pressure 10 to 15 lbs
Temperature 75 to 80 ºF
Reduction Isopropyl Alcohol (TT-I-735)
Topcoating Primers (MIL-P-23377. MIL-P-53022, TT-P-664, or TT-P-1757)
VOC (lbs/gal) 575 - 6.0 lbs
Dry Time Dry hard 30 minutes (maximum)
Weight (lbs/gal) 7.4 -7.8 lbs
Solids by Weight (± 2) 19 - 25 %
Flash Point 53 ºF
Gloss Flat

Slowly add 1 part by volume of acid component, stirring rapidly, to 4 parts by volume of resin component. For spray application add 4 parts Isopropyl Alcohol to the above mixture.

Suggested equipment settings:
  • Gun atomizing pressure: 45 to 55 lbs.
  • Pot fluid pressure:10 to 15 lbs.
  • Temperature:75 to 80° F

This material is intended for use on clean metal surfaces of all types as a treatment prior to the application of a primer. The purpose of the pretreatment is to increase the adhesion of the primer system to the metal. It is not intended to be a protective type in itself although some protection is afforded for a short period of time. For the best results the pretreatment should be re-coated with primer as quickly as possible. It may be applied by brush or spray but the dry film thickness should be 0.3 to 0.5 mil. The pretreatment is most effective when freshly mixed and must be used within 8 hours of the addition of the acid. The acid component is not a thinner and must be used exactly as specified. This material is considered suitable for use in areas with regulations controlling emissions of solvents into the atmosphere.


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