Painting facilities must conform to applicable local, state, and OSHA standards with respect to air
circulation, exhaust emissions, lighting, and fire protection.
When spraying, provide sufficient movement of air in painting area so there is no more than a slight odor
of finishing material. Exhaust fans must be belt-driven and located near floor level. Locate fan’s motor away
from fumes.
All personnel in spraying area must wear approved respiration equipment for their own personal safety.
WAXING
Apply wax to exterior of aircraft after a minimum of ten days since last application of paint, enamel or
lacquer.
Follow wax manufacturer’s recommendation concerning preparation, application, and environmental
limitation. Air temperature in waxing area must be at least 60° F.
Polish waxed surfaces within two hours after application.
Wipe all laps, seams and window collars in direction of seam to avoid wax buildup.
DECALS
To ensure proper adhesion of decals, all surfaces must be clean and free of wax, oil, (etc.). Porous surfaces
must be sealed; rough surfaces sanded and cleaned to remove any residue.
1. Paper Decals - Soak paper decals in water for l-3 minutes. Place one edge of decal on receiving
surface and slide decal off of paper backing. Blot water from around decal with a soft absorbent cloth.
Remove bubbles trapped beneath decal by wiping carefully towards nearest edge with a cloth. Coat
decal with clear varnish to protect it from deterioration and peeling. Remove paper decals by rubbing
with a cloth dampened with lacquer thinner. Use lacquer thinner sparingly if decals are applied over
painted or doped surfaces.
2. Vinyl Film Decals - Separate paper backing from vinyl film. Remove any bits of paper adhering to
film by either rubbing with a clean water saturated cloth or using a piece of masking tape. Apply
cyclohexanone or equivalent, to adhesive side of film. Position and apply decal while adhesive is still
tacky. Work a roller across the decal until all air bubbles are removed. To remove a vinyl decal, place a
cloth saturated with cyclohexanone or methyl ethyl ketone on decal. Scrape with a micarta scraper.
Remove remaining adhesive with a cloth dampened with dry-cleaning solvent.
3. Metal Decals.
a. Cellophane backed.
(l) Immerse in water for l-3 minutes.
(2) Remove and dry.
(3) Remove cellophane backing.
(4) Position on receiving surface. (For large foil decals, position center or receiving surface and
work outward from center.)
(5) Roll with rubber roller and press all edges firmly.
b. Paper backed.
(1) Peel backing from decal.
(2) Apply light coat of cyclohexanone.
(3) Position and smooth as in steps 4 and 5 of cellophane backed decals.
c. Metal decals with no adhesive.
(1) Apply cement MIL-A-5092 to decal and receiving surface.
(2) Allow cement to dry until tacky.
(3) Apply and smooth down decal.
(4) Remove excess adhesive with aliphatic naphtha.
To remove metal decals, moisten edge of decal with aliphatic naphtha and peel decal off.
—END—
20 - 25 - 00
Page - 20-24
Reissued: August 1, 1986
1F3
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
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