Specialized Painting Processes - Top Clearcoat Painting
1. Features of Paint Layer

Coating Processes
Pretreatment and Paint Layer Composition
Apply cathode electrodeposition paint to the high density conversion coating to enhance the thickness of the paint film and corrosion resistance.

Intermediate Coating
To improve the finishing quality of the topcoating and chip resistance.

Topcoating
To offer a high quality paint by applying a high-solid premium topcoat with polyester acrylic resin type paint along with a base enamel paint.

Over Coat Clear Painting (Abrasion-Resistant Clear)
Maintains smoothness, flatness, freshness, of the luster. Also the deepness and high apparent thickness of the paint layer.

NOTE: In particular to the three-coat pearl paint, repeat the intermediate coating to improve the finish quality of the topcoating and expand the color range.


2. Composition of Paint Layer


3. Work Steps (After Clear Coating)
1.
Allow Sufficient Set-up Time:
After painting, leave the surface as is for about 10 to 20 minutes, in order to let the solvent evaporate and prevent defects from occurring during forced drying.
NOTE: Set-up time changes according to ambient temperature or paint layer thickness. Check the paint manufacturers’ instructions.
2.
Force Dry Clearcoating:
Force dry the surface for approximately 30 to 40 minutes at a temperature of 140 °F (60 °C).
NOTE: Check the paint manufacturers’ instructions for the appropriate drying time.
3.
Scuff:
Wet sand the coated surface using P1200 to P2000 wet-or-dry sand paper. Clean with air blow gun then degrease.
4.
Apply Over Coat Clear:
To allow sufficient set-up time, leave the coated surface as is for about 10 to 20 minutes, in order to let the solvent evaporate and prevent defects from occurring during forced drying.
NOTE: Set-up time changes according to ambient temperature or paint layer thickness. Check the paint manufacturers’ instructions.
5.
Dry:
Force dry the surface for approximately 30 to 40 minutes at a temperature of 140 °F (60 °C).
If polished before completely dried, the surface may be de-glossed turn a whitish color. At the same time, if dries too much, it will make the paint layer very hard, increasing polishing time.
NOTE: Always refer to the paint manufactures' instructions for the appropriate drying time.
6.
Polishing.