40015 AND 40017 Assembly Instructions
Page 5
ensure that the suction head is holding the air jet and rubber sealing washer tightly against the gun body. Tighten the set
screw securely, making sure that it is sitting in the proper groove on the gun handle. Also, periodically check the abrasive
hose for leaks or cracks.
IMPORTANT: Nozzle and air jet must maintain proper size ratio, i.e. small/Gold, medium/silver, large/Black.
Abrasive (Media) Usage:
1. If moisture is in the media, it will eventually damage the blaster tank or plug the system. Keep the
media and compressor air dry to avoid this problem.
2. If the media is moist, screen it and dry it before using.
3. Do not leave media in the tank after blasting because it can absorb moisture and impair blasting
performance.
4. Store media in a dry place; keep media off the ground or concrete floors. Put is on a wooden skid.
5. If the humidity is excessively high it may not be advisable to blast at that time.
6. Consider using different grades or different types of media to prevent nozzle clogging due to high
moisture content.
7. Do not use sand.
ABRASIVE AND PRESSURE GUIDE
Material to Be Cleaned
Air Pressure
Abrasive
Grit Size
Steel vats
100-110 psi
Coal Slag
Garnet
30/50
20/40
Auto fenders
50-80 psi
Coal Slag
Garnet
80/120
20/40
Brick and block
80-110 psi
Coal Slag
Garnet
30/50
20/40
Steel cabinets
80-110 psi
Coal Slag
Garnet
30/50
20/40
Truck bodies
100-110 psi
Coal Slag
Garnet
30-50
20/40
Glass etching
50-70 psi
Glass beads
Aluminum Oxide
30/40
100
Wood
50-70 psi
Nut shells
Glass beads
14/30
30/40
Coal Slag #40093
Coal Slag is used when paint and rust has to be removed from steel, such as car bodies, tanks or
heavy machinery. Coal Slag is faster cutting, can be re-used, is moisture free, and will not pack or
absorb moisture. (25 Lb. container)
Steel Grit #40109
Steel grit is extremely fast cutting on rusty metal and hard to remove paint. Steel Grit is popular
because it leaves a very smooth finish. It is also comparable in price to most other specialty
abrasives. Steel Grit is recommended in reclaim systems or cabinets. (25 Lb. container)
