use a power sander or grinder to prepare the surface.
SECTION IV. SAFETY PRECAUTIONS
Either will protect your eyes from flying paint chips.
4-1. Safety Needed. Just like most things you do
4-6. Hearing Protection. Normally you will not need
during the course of any day in the motor pool, there are
hearing protection when you paint. You will need ear
certain safety procedures that you have to follow when
plugs or the like if you use a power sander or grinder to
painting. For most touchup painting, you need to take a
remove old paint and rust.
few commonsense precautions.
Section V. TOUCHUP STEP-BY-STEP
4-2. Solvents. To begin with, the solvents used in
CARC and other paints are flammable.
5-1. Steps to Follow. There are a number of steps to
Never paint around open flames or where there are
follow when you apply CARC. If you skip a step or take
sparks, like from someone welding.
a shortcut, you'll end up with a coating that peels easily
or one that bubbles up and falls off.
When you paint, you need plenty of
5-2. Surface Preparation. Surface preparation is
ventilation. If possible, paint outside, but out of the
important. If you skip it, or skimp on it, the paint won't
direct sun. If you must paint inside a building, paint in a
stick to the surface. You can apply CARC over old
bay with doors open on each end. Your local industrial
CARC or alkyd paint as long as the old surface is clean
hygienist can measure the airflow to see if you have
and sound-that is, tightly bonded to the surface. Clean
Use a respirator to remove
off all rust, corrosion, oil, grease, moisture, dirt, and
solvents in the air unless your local industrial hygienist
loose or blistered paint. CARC will blister up if applied
or Preventive Medicine office has said that use of a
over lacquer-even if it's covered by alkyd paint.
respirator is not necessary. You will need a dust
respirator when you sand or grind off the old paint.
5-3. Painting. Prepare ferrous metal (steel and iron) or
Individuals using respirators must be trained and have
aluminum surfaces like so:
the respirators fitted.
a. Wash with liquid detergent, NSN 793000-
282-9699, and water; rinse with fresh water and
4-4. Gloves. Wear gloves that will keep the paint and
let the area dry.
thinner off of your hands. Solvents in the paint and
thinner can be absorbed through your skin, and make
b. Remove all loose paint and rust by sanding
your hands dry and cracked. Some solvents can make
or with an orbital grinder. When you sand any
you sick, too. Besides, CARC that's dried on your skin
old paint, use a respirator designed to filter out
doesn't come off easily. Usually it has to wear off.
dust, because the old paint may contain lead or
Cloth gloves are OK unless the solvents contain
chromates. Use a HEPA vacuum, like NSN
Then you need silicon rubber
7910-01-0685662, to clean up.
4-5. Face Protection. Use a face shield or goggles so
paint will not splatter in your face, TB 43-0242 especially
when mixing paint. You need a shield or goggles if you