Powder coating coating precautions

Composition of thermosetting powder coatings

First of all, the main components of the powdered coating are acrylic powder and polyester powder, these two materials are mixed and charged with electrostatic generators, and adsorbed on the iron plate, baked at a certain temperature, so that it melts away, generally this post-effect is flat or matte
.

Are thermosetting powder coatings toxic?

Thermosetting powder coatings are environmentally friendly materials and non-toxic
.

When spraying construction, as long as it is strictly used in accordance with operating procedures, its safety performance is a good paint online coatingol.
com
.

Are powder coatings harmful to the human body?

Its hazard is to the workers who produce powder coatings because its curing agent can cause allergies and toxicity, but it has reacted after spraying and only releases a small amount of water vapor
.

1, if long-term direct contact with powder coating spraying construction process, it will have an irritating effect
on the eyes, skin and respiratory organs.

2, if the powder coating is ingested into the human body, it is hindered to human health
.

3, when the powder coating is sprayed, when the powder concentration reaches a certain value, it can be detonated
by open flame or electric spark.

Safety points for the application of thermosetting powder coatings

1.
Wear a mask for construction

This powder coating is very dangerous, and the use of its work will also have a certain harm, long-term inhalation of the formation of pneumoconiosis, especially for the metabolism of our brain cells are harmful, so it is best to build it with a mask, and keep the room ventilated under use
.

2, many are conductive devices

Many of the pigments in this powdered coating are some polymer organic compounds, these substances are some conductive substances, these substances in addition to benzene, xylene, solvent gasoline, etc.
, many of them are polar substances, low resistivity, so it has a certain conductivity
.

3, there is also electricity in the air

Generally use this coating, and equipped with some machines to use together, the first part of the paint particles connected to the negative electrode, the workpiece to the positive electrode and grounded, under the action of electricity, and the voltage is high enough, the air ionization zone is formed near the end of the spray gun, the air is violently ionized and heated, and a dark red halo is formed
.

Thermosetting powder coatings should often pay attention to when applying construction

1.
Smoking is strictly prohibited and there is no open flame
.

2.
Only spray guns and necessary cables are allowed to be placed in the powder coating spraying room, and all other electrical appliances are placed outside the spraying room (except dustproof and explosion-proof electrical appliances).

3.
Check whether the exhaust device is working properly
.

4.
Check whether the grounding of the fixture and all electrical appliances is good
.

5.
The operator needs to be well grounded and must not wear insulating gloves or insulating shoes
.

6.
When the powder coating spray room is working, the operator must not enter the spray room, and the personnel working in the dust environment should wear appropriate masks and protective objects
.

7.
The ground should be kept clean within 5 meters of the spraying area, try not to sweep the floor, and clean it with a wet mop or vacuum cleaner
.

8.
After the powder coating is completed, you should wash your hands and face
with hot water and soap.

Several things that must be done every day in the construction workshop for the application of thermoset powder coatings

1.
Check whether the recovery device is running
normally.

2.
Whether the high-voltage electrostatic generator can work
normally according to the specified indicators.

3.
Whether the powder feeder is working normally and whether it is blocked
.

4.
Whether the compressed air is clean, and discharge the discharge valve of the oil-water separator, discharge sewage and oil
.

5.
Check whether the equipment and work area are clean
.

6.
Whether the safety door and the passage where the fire fighting equipment are stored are unobstructed
.

7.
Check whether the grounding of the electrical appliance is good; Whether the high-voltage cable is intact and lossless
.

8.
Check whether the temperature of each temperature control zone of the drying tunnel or oven is normal
.

9.
Check whether the transmission chain speed is normal (variable parameters of the stepless variable speed transmission device
).

Emergency measures

1, powder coating leakage: immediately cut off the power supply, and use a vacuum cleaner to suck clean
.

2, high voltage electrostatic powder spray gun fire: immediately cut off the air source and high pressure electrostatic generator power supply
.

3, fire alarm: immediately cut off all power supply, with a fire extinguisher or water mist fire extinguishing (foam fire extinguisher, 1211 fire extinguisher or water mist, etc.
can be
).

4, eye contamination: rinse with water or special cleaning liquid and send it to the hospital for treatment
.

5, inhalation of powder: the injured person moved to the fresh air, loosen the clasp of the clothes, the heavy person with breathing difficulties should be immediately sent to the hospital for treatment
.