E
FRAME
SECTION
EI6
PAINTWORK
REFINISHING
PAINTSTRIPPING
Except
In
cases where a "touch-up"
Is
to
be
attempted,
It
Is
strongly recommended
that
the
old finish
.Is
completely stripped, and
the
refinish
Is
carried
out
from the bare metal. A sUitable
paint
stripper
can
be
obtained from most
paint
stores
and accessory dealers.
The
stripper
sho"ld
be
applied with a brush, and
allowed approximately
10
minutes
to
react. A
suitable
scraFer should
be
used
to
remove
the
old
finish, then
the
surface cieaned with
water
and
a piece of wire wool. Ensure
that
all
traces
of
paint
stripper
are
removed.
If
possible,
blowout
crevices
with
compressed air.
It
Is
advisable
to
strip a small arca
at
a time
to
avoid
drying
of
the
stripper
and also
to
enable
easier
neutralizing of
the
stripper.
Finally,
the
surface
s~ould
be
rubbed with a
grade
270
or
280 emery cloth to give a satisfactory finish,
then
washed off with white spirits
or
a suitable
cleaner
solvent.
PRIMING
A thlri coat
of
cellulose primer must
be
sprayed
on
to
the
surface, prior
[0
application
of
an
under-
coat
or
filler. Undercoat and fill.r will not
adhere
satisfactorily
to
bare metal.
It
Is
advisable
to
thin
the
primer
by
adding 1 part cellulose thinners
to
1
part
primer. Ensure that the
primer
Is
dry before
advancing further.
APPLYING
FILLER
Imperfections and slight dents
In
the
surface may
be
built up with filler, but rubbing down
with
"wet
and
dry"
abrasive paper should
not
be
attempted
until
the
undercoat has been applied.
Apply
the
filler with a glazing knife,
In
thin layers,
allowing approximately
20
minutes for
drying
'between
each layer. After
the
last layer, allow
filler
about
6 hours (or over-night
If
possible)
to
dry. Heavy layers
or
Insufficient drying
time
will
result
In
risk ofsurface cracking.
EiB
UNDERCOAT
(SURFACER)
Most cellulose undercoats (also called surfacers) will
suffice for a base for TRIUMPH finishes.
About
two
or
three
coats are required, and should be sprayed
on
In
a thinned condition, using 1 part cellulose
thinners
to
1
part
undercoat. Allow approximately
20
minutes.
between
each
coat.
If
filler has been applied,
the
final layer
of
under-
coat
should be sprayed on
after
smoothing
the
surface
with
"wet
and
dry" abrasive,
as
mentioned
below.
"WET
AND
DRY" ABRASIVE
After
application
of
the
undercoat,
the
surface
should
be rubbed down with 270
or
280
grade
abrasive paper, used wet. An Ideal method
Is
to
have a
rubber
block, apprOXimately 3
In.
x 21n. X 1
In.,
around
which
to
wrap
the
emery paper. How-
ever,
this
Is
only recommendable for fiat surfaces;
where
rapid change ofseetlons occur, a thin felt pad
Is
more useful.
The
abrasive paper should
be
allowed
to
soak
In
cold
water
for
at
least
15
minutes before use. A
useful tip
Is
to
smear
the
abrasive surface
of
the
paper
with soap prior
to
rubbing down. This
will
prevent
clogging, and should at least
treble
the
useful
life
of
the
paper,
If
It
Is
washed thoroughly
after
each rub-down.
When
the
surface
Is
smooth enough,
wash
It
thor-
oughly with
water
and dry off with a dean sponge.
If
smoother
surface than this
Is
required,
It
can be
given
another
layer of undercoat, and
then
the
rubbing
down procedure repeated
using
320
or
400
grade
of paper, depending upon conditions.
FINISHING
Before spraying on the finishing coats;
the
surface
must
be
quite
smooth, dry, and clean.
It
Is
Impor-
tant
that
conditions are right when finish spraying
Is
to
be
carried
out,
otherwise complications may
occur.
Best conditions for
outdoor
spraying
are
those
on
a dry sunny
day
without
wind. Moisture
In
the
atmosphere
Is
detrimental
to
paint spraying.
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