Spray Guns.

TB 43-0213

3-7. Spray Guns.

b. There are two types of material spray guns

available on the market (see Figure 3-10):

(1) Fogging Gun. The fogging gun connects the

WARNING

air source directly to the gun along with the rustproofing

material. The pressurized air and material converge

High pressure spray equipment can cause

within the gun where, when the trigger is pulled, they

serious injury or death. Never put hand or

are ejected in a fine mist. This type of rustproofing

fingers over spray tip. Never point spray gun

application is called fogging and is NOT approved for

at another person. Never try to stop or

use by U.S. Army installations.

deflect leaks with your hand. Ensure that all

components of the spray system can

withstand the pressures. Never exceed the

rated pressure of the equipment. Never

alter or modify the equipment. Even after

shut-off, pressures will remain in the

material hose and gun and must be purged

by grounding the gun to a waste container

and triggering the gun. Never change

wands, tips, or any accessories until after

system is completely shut off and purged.

Inspect all parts of the system before use.

Ensure that all fittings are properly installed

and tightened, and that hoses are not frayed

or cracked. If injection injury occurs, even

for a simple cut, get immediate emergency

medical care. Inform emergency physicians

that the material injected into the skin is a

petroleum compound containing aliphatic

petroleum naphtha with an effect similar to

kerosene.

TA504762

Figure 3-10. Fogging and Airless

NOTE

Spray Guns.

P r i o r to use of high pressure spray

NOTE

equipment, refer to U.S. Government

Safety Standards, General Standards Part

Depending on the installation, the spray gun

1910, and U.S. Government Construction

handle may be equipped with a Z swivel to

Standards Part 1926, adopted under the

provide greater maneuverability.

Occupational Safety and Health Act.

(2) Airless Gun. The airless type of spray gun

system uses an air motor pump over the drum as

a. A rustproofing material spray gun is used to

discussed in paragraph 3-5. The material pressurized

control and direct the spray of the material, or to stop

the spray by releasing the trigger. These spray guns are

out of the pump, through the material filter, and into

the gun is not mixed with air. As a result, the material

used in combination with various wands that permit the

technician to reach out-of-way places and to apply

ejected from the wand end is a pure concentration of

different spray patterns.

rustproofing material.

3-12