Raytheon Beech Baron E55 - Page 578

Raytheon
Aircraft
Company
BARON
55
AND
58
SHOP
MANUAL
EPOXY
PAINT
Besides
forming
a
tougher
film
than enamel
or
lacquer,
epoxy
has
a
very
lustrous finish.
However,
the
painted
surface oxidizes
a
little faster
than
enamel
or
lacquer,
and
must
be
polished
more
frequently
to
retain the
sheen.
Oxidation is
accelerated
by
exposure
to
the
sun,
hence,
in hot
weather
oxidation
will
occur
faster
than
in
cold
weather.
A
good
coat
of
wax
will
protect
the
airplane
surface from
the sun’s
rays
and
keep
the
surface
from
oxidizing
as
fast.
Any
good
automotive
polish
or
wax
can
be
used.
NOTE: At
temperatures
below
70"F,
the
paint
cure
time
required
for
any
of the
paints
used
in
this
procedure
will
extend
beyond
the
time
normally
required.
Under
no
circumstances
should the
paint
be
applied
at
temperatures
below
60"F,
since the
paint
will
not
cure.
The
Baron
may
be
finished
with
pretreatment
(wash)
primer,
Epoxy
primer,
and
a
topcoat
of
Epoxy
enamel.
The
following
procedures
including cleaning, paint
stripping,
prepaint preparation,
priming,
Epoxy
painting,
and
an
alternate
method
for
small
repairs
that does
not
involve
paint
stripping.
Careful
observance of these
procedures
should result
in
a
smooth,
high
luster finish
with firm
adhesion
for
maximum
life.
PAINT
STRIPPING
AND
CLEANING
Epoxy paints
and
primer
are
difficult
to
strip
because
of
their
resistance
to
chemicals and
solvents;
therefore,
a
paint
stripper
made
specifically
for
Epoxy
paints
should be
used.
If
an
Epoxy stripper
is not
available,
use a
good
enamel
stripper.
Removing
the finish
with
such
a
substitute will
require
several
applications
and
working
the
stripper
with
a
stiff
brush
or
wooden
scraper.
a.
Mask
around
the
edge
of the
skin
or
skins
containing
the
damaged
area.
Use
a
double
thickness of
heavy
paper
to
prevent
accidental
splashes
of
paint
stripper
from
penetrating
the
masking.
b.
Apply Epoxy
stripper
as
indicated
by
the
manufacturer’s directions.
Try
to
stay
approximately
1/8 inch
away
from
the
masking
tape.
This
will
necessitate
a
little
more
clean
up upon
finishing,
but
will
prevent
any
damage
to
the
finish
on
the
next
skin. The
stripper
will
not
attack
aluminum
during
the
stripping
process
and
can
be
neutralized
by rinsing
the
affected
area
with
water.
CAUTION:
Epoxy stripper
usually
contains
acids that will irritate
or
burn
the skin. Wear rubber
gloves
and
eye
protection
when
using
the
stripper
c.
Rinse
the area
with
water
and
dry.
d.
Wash the
stripped
area
carefully
with
a
solvent such
as
acetone,
methyl
propyl
ketone,
or
lacquer
thinner.
This
I
will
prevent
tiny particles
of loose
paint
from
adhering
to
the
stripped
area.
e.
Using
a
nylon
scratch
pad
or
aluminum
wool
dipped
in
clean
water,
clean
the surface
with
a
cleanser
such
as
Bon
Ami,
Ajar,
Comet
Cleanser,
etc.
A
good
scouring
will
leave the surface
completely
clean.
f.
Rinse
thoroughly
with clean
water
and
dry
the
affected
area
carefully.
If
the
stripped
area
includes
several
joints
or
skin
laps,
let the
airplane
sit
until all
moisture
has dried. This
may
be
accelerated
by blowing
the skin
laps
with
compressed
air.
Wet
masking
should
be
replaced.
E21
SECTION
12
9