ARMY TM 5-5420-212-23
MARINE CORPS TM 08676A-23/2
The materials used to replace the protective finish are listed in the Expendable and Durable Supplies and
Materials List (13 thru 20, Appendix C), and must be applied in accordance with TM 43-0139, Painting Instructions for
The more typical faults to look for are listed below.
Chalking. This is the formation of a powdery coating on the surface of the paint film and is an indication
that the finish coating has begun to break down. In severe cases of chalking the powdery coating will be transferred to
the hand when rubbed.
Cracking. Generally this is the splitting of a dry paint film as a result of aging. Several terms are used
under this heading to indicate the extent of the fault.
Hair Cracking. These cracks normally occur in isolated patches and do not penetrate the top coat.
At this stage only slight preparation is required before painting.
Checking. This is the extension of hair cracking and covers the whole surface with a small pattern
FIGURE 2-4 Paint checking
Cracking. This term is specifically used when at least one paint coat is affected and the complete
paint system is likely to fail (fig. 2-5).
FIGURE 2-5 Paint cracking