|
【范围】
|
1.1 Form
This specification establishes the performance requirements for non-chromated materials used for surface preparation of
metallic surfaces prior to applying organic coatings.
1.2 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.
1.3 Classification
Pretreatment materials shall be qualified by Type, Class and Grade 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)
1.4 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.strRefField
|