Typical Applications; Removing Paint From Window Frames - Bosch 1944LCD Operating/Safety Instructions Manual

BM 1619929572 11-06
Temperature settings given in the application
examples are suggested values that,
depending on the material characteristics, can
deviate. The distance between the nozzle and
workpiece is dependent on the material to be
processed.
The ideal temperature should first be
ascertained by performing a test. Therefore,
begin with a lower temperature setting.
All application examples (except figure 5) can
be performed without accessories. However,
the use of the recommended accessories
simplify the work and significantly improve the
quality of the results.
Be careful when changing the
!
WARNING
nozzle, danger of burning! Do
not touch the hot nozzle. Allow the unit to cool.
Wear protective gloves.
Bosch stocks a range of accessories (see
Bosch catalog) which facilitate a wide range of
other applications.
STRIPPING PAINT/SOFTENING ADHESIVES
Attach the optional HG010 spreader nozzle.
Soften the paint using hot air and remove
evenly using a spatula. Do not heat the paint for
too long since this will burn the paint, making it
more difficult to remove (Fig. 4).
860 ˚F
Many adhesives (e.g. stickers) become softer
when heated allowing adhesive bonds to be
separated or superfluous adhesive to be
removed.
1. To strip paint, turn unit on and hold it about
1 inch from the surface being stripped.
Proper distance and speed of stripping
should be determined by experience. It is
an advantage to hold the gun further from
the surface and to move forward slowly.
Slower speed is compensated by the wider
softened areas. Heat will also penetrate
deeper.
11/8/06 8:51 AM

Typical Applications

FIG. 4
Page 9
2. As paint begins to blister and bubble, move
gun slowly in a steady progression across
the surface. Follow closely with a scraping
knife (a 2-inch wall scraper works best) to
scrape the loosened paint. Preheat scraper
as you are heating the paint surface. This
increases the speed of paint stripping.
a. Removal of paint by using heat is based
on the fact that all organic paints soften
at elevated temperatures. When soft, the
paint can be easily lifted off without
damage to the surface.
b. When stripping paint from grooves in
moldings, you can devise your own
scraping tools. Old screwdrivers with
ground-down blades and linoleum
knives are often used.
REMOVING PAINT FROM WINDOW
FRAMES
Danger of glass breaking!
Use of the optional HG030 deflector nozzle is
essential.
On profiled surfaces, paint can be removed
using a spatula and brushed off using a soft
wire brush (Fig. 5).
860˚ ˚F
SHAPING PLASTIC TUBING
Attach the optional HG040 reflector nozzle. To
avoid kinking the tubing, fill the tubing with sand
and seal at both ends (Fig. 6).
Heat the tubing evenly by moving it from side to
side.
HDPE 560˚ F
PVC (hard) 560˚ F
PVC (soft) 740˚ F
PP 500˚ F
LDPE 480˚ F
ABS 660˚ F
-9-
FIG. 5
FIG. 6