Mold Design and Manufacturers
Silk-Screen,Oil Paint Testing Standard 2019-03-25

Adhesion (non-destructive)

Silk-Screen

Use 3M adhesive paper (or customer specified) to stick it flat on the surface of the test product with a length of 50mm;Angle 45 degrees: instantly pull up the tape

3M Tape、Knife

The surface of the experimental materials is free from printing ink, electroplating layer, bronzing, paint layer falling off, peeling off, and so on
Electroplating and bronzing
Use 3M adhesive paper (or customer specified) to stick it flat on the surface of the test product with a length of 50mm;Angle 45 degrees: instantly pull up the tape

3M Tape、Knife

Oil Paint

Use 3M adhesive paper (or customer specified) to stick it flat on the surface of the test product with a length of 50mm;Angle 45 degrees: instantly pull up the tape

3M Tape、Knife

Wear-resistant test
Alcohol concentration 99.7% 500g weight,test 25 times
Weight,concentration 95% alcohol

Testing materials do not see the substrate, paint surface is not white

Hardness Test


1. The test products placed in a horizontal platform, with a hardness of HB pencil and 45° Angle on the surface of the rubber, the pencil lead broken shall prevail, ahead of the test material for the experimenter scratching 10 mm (5)
2. Simple method: scratch the test material surface with a force of 500G nail

Hardness tester, HB pencil, drawing eraser

Wipe clean with drawing eraser, test material surface without scratches is OK

Destructive Toughness

Use pliers to break the test product with a force of 500G, and break or bend the test product

Pliers
)Plastic body (broken section should be gray white, no fragmentation phenomenon;If the section is smooth, black and brittle, then NG)
Cut-Gross test adhesion (destructive)
Electroplate

Interval of every 1 mm ~ 1.2 mm, with a total of 10, has become a 10 * 10 100 squares, the knife row down time should be cut to meet substrate, not only to cut on the coating, 3 m tape in the best position, press with finger will closely attached with adhesive tape, Angle to 45 degrees of the strength of the instantaneous tear tape, visual materials on the coatings have fall off phenomenon, in addition, the adhesive tape is not literally a can

(blade width is about 10mm~12mm)

Use a 10-fold magnifying glass to observe the peeling degree 4B (small pieces of paint come off at the intersection of the lines, and the total peeling area is less than 7%).

Oil Paint

Gilding

Temperature Test

High Temperature

High temperature 105 ℃ testing 4 hours (unless it is otherwise special requirements of customers) after the test there shall be no material, paint blowout, blister, plastic deformation

High-low oven

After the test can not have the material, paint burst, foam, plastic deformation

Low Temperature

40 ℃ low temperature test - test 3 hours (unless it is otherwise special requirements of customers) after the test there shall be no material, paint blowout, blister, plastic deformation
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