SAE AMS3175

Description / Abstract: Form

This specification establishes the performance requirements for non-chromated materials used for surface preparation of metallic aircraft surfaces prior to applying organic coatings.

Application

Pretreatment materials qualified to this specification may be used on metallic surfaces that are subsequently painted. These include, but are not limited to, external and internal aircraft surfaces, off-aircraft part surfaces, and aircraft surfaces undergoing touch-up/repairs.

Classification

Pretreatment materials shall be qualified by Type and Class as defined below. The pretreatment material is to be tested and evaluated in conjunction with either MIL-PRF-23377 or MIL-PRF-85582 industry qualified primers.

Type 1: Suitable for spray application

Type 2: Suitable for immersion application

Type 3:* Suitable for manual or hand application (i.e., brush, wipe, or other touch up methods)

*NOTE: If Product is already qualified to a Type 1 or Type 2 and there is no formula change for the Type 3, limited testing per Table 4 is permitted.

Class C: Qualified for use with primers that contain hexavalent chromium

Class N: Qualified for use with primers that are free from: barium, hexavalent chromium, cadmium, arsenic, copper, nickel, mercury, or lead)

Grade I: 0 to 250 g/l (0 to 2.1 lb/gal) Volatile Organic Content (VOC)

Grade II: 251 to 780 g/l (2.11 to 6.55 lb/gal) Volatile Organic Content (VOC)

Safety-Hazardous Materials

While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.