TT-P-645C
4.6.9 Compatibility.
4.6.9.1 Compatibility with topcoats. Three panels shall be prepared and coated as specified in 4.6.1. A 0.051- to
0.076-millimeter (0.002- to 0.003-inch; 2- to 3-mil) topcoat manufactured to MIL-PRF-24635 shall be applied to the first panel; a 0.051- to 0.076-millimeter (0.002- to 0.003-inch; 2- to 3-mil) topcoat of enamel qualified to MIL-PRF-
24763 shall be applied to the second panel; and a 0.051- to 0.076-millimeter (0.002- to 0.003-inch; 2- to 3-mil) topcoat of MIL-DTL-24607 enamel shall be applied to the third panel. After drying [curing the three panels for 48 hours at 50 °C (122 °F)], the panels shall be cooled to ambient laboratory conditions, and a 0.051- to 0.076- millimeter (0.002- to 0.003-inch; 2- to 3-mil) topcoat of the test paint manufactured to this specification shall be applied. The panels shall be examined for blistering, wrinkling, or peeling of the test paint immediately after
application and after 48 hours. Adhesion shall be checked 48 hours after test paint application by Test Method B of
ASTM D3359. Test paint condition shall be as specified in 3.4.7 and 3.4.9.1.
4.6.9.2 Compatibility with primers. Three panels shall be prepared and coated as specified in 4.6.1. A 0.051- to
0.076-millimeter (2- to 3-mil) paint manufactured to this specification shall be applied to the first panel; a 0.051- to
0.076-millimeter (2- to 3-mil) coating of MIL-DTL-24441, F.150, Type III polyamide epoxy shall be applied to the second panel; and a 0.051- to 0.076-millimeter (2- to 3-mil) coating of MIL-DTL-24441, F.150, Type IV polyamide
epoxy shall be applied to the third panel. After drying [curing the three panels for 48 hours at 50 °C (122 °F)], one coat, at 0.051- to 0.076-millimeter (2- to 3-mil) of the test paint produced to this specification, shall be applied. The panels shall be examined for blistering, wrinkling, or peeling of the test paint immediately after application and 48 hours after application. Adhesion shall be checked 48 hours after topcoat application by Test Method B of ASTM D3359. Test paint condition shall be as specified in 3.4.7 and 3.4.9.2.
4.6.10 Color match. The paint color shall approximately match the FED-STD-595 color chip number 34230 when evaluated as specified in table VII (see 3.4.2).
4.6.11 Surface appearance. On a clean, smooth glass plate (a standard black and white Leneta chart is also acceptable) the paint shall be drawn down obtaining a wet film thickness using a 0.005-inch drawdown bar. The paint shall be dried for 24 hours in a horizontal position at 23±1 °C (74±2 °F) and 50±5 percent relative humidity. The paint shall be examined for conformance to 3.4.10.
4.7 Toxicity. An HHA shall be conducted to ensure conformance to 3.2.1, as specified (see 6.2). The Navy and Marine Corps Public Health Center (NMCPHC) will evaluate the paint using the administrative HHA data provided by the manufacturer/distributor to the NMCPHC.
4.8 Off-gassing. The paint shall be tested for off-gassing at a Government approved testing facility in accordance with S9510-AB-ATM-010 chapter titled "Material Control Program" (see 3.10 and 6.8).
5. PACKAGING
(The packaging requirements specified herein apply only for direct Government acquisitions.)
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see 6.2). When actual packaging of materiel is to be performed by DoD personnel, these personnel need to contact the responsible packaging activity to ascertain requisite packaging requirements. Packaging requirements are maintained by the Inventory Control Point's packaging activity within the Military Department or Defense Agency, or within the Military Department's System Command. Packaging data retrieval is available from the managing Military Department's or Defense Agency's automated packaging files, CD-ROM products, or by contacting the responsible packaging activity.
6. NOTES
INFORMATION FOR GUIDANCE ONLY. (This section contains information of a general or explanatory nature that is helpful, but is not mandatory.)
15
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business