A special sanding operation--featheredging--is required when damage or corrosion
reaches to the metal. Sand down to bare metal at the damage point. Make sure all
corrosion and loose paint Is removed. Then sand the surrounding paint, tapering up to
the topcoat surface.
Featheredging calls for "feathering" the amount of paint applied. You apply the paint
lightly at outer edges and heavier as you move to the middle. This rebuilds the paint
layers to the original level and thickness.
the compound off the surrounding paint because
c. Feather the edges of good paint by sanding
it can keep the primer from bonding to old paint.
or with steel wool.
As soon as
longer than four
e. If the old paint is sound and you didn't have
f. After the coating is dry-at least 30 minutes
to sand to bare metal, you don't need the
but no more than 24 hours-paint it with primer,
pretreatment and primer, so you can skip to
Step g. Otherwise, immediately coat all bare
separately until uniform.
metal surfaces with coating compound, NSN
and helps the primer bond to the surface. Keep