MIL-HDBK-1110
Figure 8
Illustration of Parts of Paint Brush
d) Confine painting to one area so that a "wet edge"
is always maintained. Apply paint to a surface adjacent to the
freshly painted surface sweeping the brush into the wet edge of
the painted surface. This helps to eliminate lap marks and
provides a more even coating film.
7.5.3
Roller Application. Roller application is an efficient
method for flat areas where the stippled appearance of the dry
film is acceptable. However, paint penetration and wetting of
difficult surfaces is better accomplished by brush than roller
application. Thus, brush application of primers is preferred
over roller application.
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