Burn test: Styrene/polyester resin spray application

1
Burn testStyrene/polyester resin spray
application

• Test conducted in 1983 near Portland, OR

2
Constructing spray booth.
3
Attaching resin feed line to spray gun.Blue hose
is attached to overhead sprinkler.
4
Resin drum and pump (on truck), remote control
for spray gun.
5
Start of resin spray. Spray will continue to
allow accumulation of resin on floor and back
wall. Duct in rear allows air flow.
6
Fire started in resin (overspray) using
torch.(Photo shows reenactment of this step
following test.)
7
Resin on booth floor burningspray continues but
does not burn.
8
Resin on booth floor burningresin spray does not
burn.
9
Resin on booth floor burningresin spray does not
burn.
10
Resin on booth floor burningresin spray does not
burn.
11
Fire spreading to resin on back wall of
boothresin spray continues but does not burn.
12
Resin burning on floor and back of booth, but
resin spray is not burning.
13
Sprinkler startsresin spray stopped.
14
Sprinkler working
15
Sprinkler working
16
Flame extinguished, approx. 15 seconds following
sprinkler start.
17
Flame (butane torch) applied to resin
spraydifficult to light.
18
Resin spray burning while flame still applied.
19
Flame removed spray continues but no longer
burns resin on back wall burns.
20
Resin on back wall burnsspray continues but does
not burn.
21
Resin on back wall burnsspray continues but does
not burn.
22
Water applied by hand-held hose.
23
Water applied by hand-held hose.
24
Fire extinguished.