MIL-DTL-450D
c. Remove the masking tape, and heat in an oven at approximately 100 ºC in a vertical
position. The coated end of the panel shall be uppermost with the dividing line horizontal.
d. At the end of 1 hour, remove from the oven and examine for compliance with 3.5.7.
4.4.18 Flexibility.
4.4.18.1 Equipment.
a. Tin plated steel panel (tin panel). The tin panel shall be made by plating Type 3 steel
conforming to ASTM D 609. The tin coating shall conform to the dimensional and chemical
composition requirements of ASTM A 623 and be of class A2, grade 1, 31 gage ICL tinplate.
b. Film applicator
c. 1/8-inch-diameter mandrel
4.4.18.2 Reagents.
a. Naptha
b. Ethylene glycol monoethyl ether
4.4.18.3 Method.
a. Prepare one tin panel in accordance with Procedure C or D of ASTM D 609, using a 3:1
volumetric mixture of naptha and ethylene glycol monoethyl ether as the cleaning solvent.
b. Using a film applicator that will deposit a dry film thickness of 0.0009 to 0.0011 inch,
draw down a 2-inch-wide film of coating compound on the clean tin panel.
c. Air dry for 24 hours under referee conditions.
d. Place the panel with the coated side up on a ⅛-inch-diameter mandrel at a point
equidistant from the top and bottom edges of the panel.
e. Bend the panel double in approximately one second and examine for compliance with
3.5.8.
20
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business