>
APPLIED AREA >
PAINTING
PAINTING
Fight against moisture, drastically reduce the defect rate
Importance of Compressed Air Filters in Painting
During vehicle maintenance and painting in accordance with the Enforcement Regulations of the Clean Air Conservation Act, oil-based paint cannot be produced and water-soluble paint
use is compulsory.
-
Mandatory use of oil-based paint as water-based paint (obligatory period 2021.01.01)
As the air blowing drying process is added due to the application of water-soluble paint, the importance of removing moisture from compressed air increases↑
Air Quality Conservation Act Enforcement Rule (Ministry of Environment Ordinance No. 866): Mandatory use of water-soluble paint for maintenance and repair painting
In the case of water-soluble painting, it is essential to remove moisture from compressed air, and the drying process is important.
TESLLON compressed air filter
Removes 99.9997% of moistureperfectly.
-
Advantages of using water soluble paint
Excellent gloss/color uniformity
Less discoloration and turbidity
Excellent adhesion
Natural decomposition or eco-friendly ingredients upon evaporation
Good coating hardness after drying (compared to oil-based paint)
-
Disadvantages of using water-soluble paint
High quality compressed air is required
Impossible to commercialize the product when it contains moisture
Longer working time (drying time 2 to 3 times)
environmental conditions (temperature, humidity, oil, etc.)
Sensitive (summer, rainy season, etc. humid environment)
Cases of poor painting when compressed air quality is poor Cratering, blasting (bubbles), etc.
Domestic painting industry supply case
-
Used in the practice painting booth of a domestic painting education institution (Polytech University)
Used in all-round industries such as furniture, trains, other steel structures, and liquid painting companies that use air spray guns
-Substrate adjustment, coloring, filler coating, undercoating, intermediate coating, top coating
Painting booth for a first-class automotive industry in Korea
Problems with increased compressor usage
-
water soluble contrast
Increased compressed air usage
- water soluble coating : Use 1-3 Air Dry Jets
- Increased compressor utilization
- Increased heat generation inside the compressor (generates hot air)
Humidity 100% in case of rain
- Humidity 100% even if it rains in summer (August)
- Humidity is 100% even if it rains in winter (December)
-
saturated water vapor
Based on the summer temperature of 35℃
- The amount of water vapor contained in each 1㎡ of width x length x height is 40g
Based on winter temperature of 10℃
- The amount of water vapor contained in each 1m of horizontal height is 9.3g
- About 4 times the frictional area for water vapor
- Air at 50°C contains 82 g of saturated water vapor.