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Brick surfaces should be free of dirt,
loose mortar, or other contaminants prior to painting:
- If efflorescence is present, remove
by hand wire brushing; wear eye protection and gloves; try
to identify and eliminate any source of water from behind
the brick that could have caused the efflorescence
- Scrape out and widen any cracks;
brush out dust, and seal with 100% acrylic or siliconized
acrylic caulk; make second application in several hours if
needed; check mortar joints carefully and repair or re-point
as needed
- Remove all loose or peeling paint
by scraping and wire brushing; wear eye protection, gloves
and a dust mask; or by power washing with plain water, taking
care to not drive water into cracks or mortar joints.
(NOTE: If lead is suspected in the paint, do not attempt to
scrape, sand, power wash, use heat gun, etc., which might
put lead into the environment, but rather contact a contractor
qualified for lead assessment and abatement.)
- Treat any mildew with a 3:1 water:household
bleach mixture, leaving it on for 20 minutes and adding more
as it dries; wear eye and skin protection; rinse thoroughly
- Remove dirt, chalk, dust, unbound
sand, treated mildew, etc. by scrubbing with detergent and
water, and rinse thoroughly; or power wash with plain water,
taking care to not drive water into cracks or mortar joints
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