Test Items

Test Conditions

Test Results

1

Film Thickness

Determined by film thickness gauge

33±5um

2

Adhesion

The sample is placed flat and scored both horizontally and vertically using a 100-grid knife. After cleaning the scored section, 3M#610 tape is applied over the grid. The tape is then pulled off at a 45° angle three times, resulting in a 5B adhesion rating.

5B

3

Hardness

Lay the test panel flat. Using the Mitsubishi Pencil Hardness Tester at a 500g load, the coating should exhibit a scratch-free surface with a hardness rating between H-2H.

No scratches

4

Rub Resistance Test

Using an EF74 eraser under a 500g load, the coating is rubbed back and forth at a speed of 30 strokes/minute for 1000 cycles. The substrate (paint) should not be exposed.

No substrate exposure observed

5

Rub Resistance Test

Using No.502 eraser with a test cycle of 30 times/min under a 1Kg load. After 1000 back-and-forth frictions, the underlying material (paint) should not be visible.

No substrate exposure observed

6

RCA Wear

Under a 175g load, the coating is rubbed with tape. Glossy UV can withstand 250 cycles, while Matte UV 80 cycles without exposing the underlying paint.

No substrate exposure observed

7

IPA (Isopropyl Alcohol) Resistance

Using IPA under a 500g load, rubbing distance of 6cm, at a speed of 30 cycles/min. After 250 back-and-forth frictions, the substrate should not be visible.

No substrate exposed.

8

Alcohol Resistance

Using 95% ethanol under a 500g load, rubbing distance of 6cm, at a speed of 30 cycles/min. After 250 back-and-forth frictions, the substrate should not be visible. **Result**: No substrate seen.

No substrate exposure observed

9

CS-5 Gloss Wear Resistance

Using CS-5 (wool felt friction bar) under a 200g load, speed of 30 cycles/min, and distance of 4cm. After 250,000 frictions, the base paint should not be visible.

No substrate exposure observed

10

Chemical Resistance

Tested with a 100% cotton sieve of 300x300mm diameter, cycling rate of 0.5/S, distance of 3cm, and load of 500g. Tested 100 times with materials: ① Acidic synthetic sweat (PH4.7) ② Olive oil ③ Nivea④ Lemon juice ⑤ Cleaning agent ⑥ 95% Isopropyl alcohol. The paint should remain intact and show no abnormalities.

No significant abnormalities observed after testing.

11

Boiling Water Resistance

It was submerged in an 80℃ water bath for 2 hours. The surface remains unchanged with a 5B pencil hardness test result.

No visible abnormalities, 5B hardness achieved.

12

High Temperature and Humidity Resistance

Exposed to 65℃ and 95% humidity for 120 hours, followed by a 6-hour recovery at room temperature. Post-examination shows no abnormalities with a 5B pencil hardness test result.

No visible abnormalities, 5B hardness achieved.

13

High Temperature and Humidity Resistance

Tested at 50℃ and 95% humidity for 336 hours (14 days).

No visible abnormalities, 5B hardness achieved.

14

High Temperature Storage

Stored in a 70℃ environment for 96 hours, then allowed 4 hours to return to room temperature. Post-examination shows no abnormalities with a 5B pencil hardness test result.

No visible abnormalities, 5B hardness achieved.

15

Low Temperature Storage

Placed in a -40℃ environment for 96 hours, followed by a 4-hour recovery at room temperature. Post-examination shows no abnormalities with a 5B pencil hardness test result.

No visible abnormalities, 5B hardness achieved.

16

Thermal Shock Resistance

High temperature set at 80°C, low temperature at -40°C, each temperature held for 1.5H, transition time is 20 minutes, 20 cycles total. After 4 hours at room temperature, tested with 5B grid. No color change, bubbling, peeling, falling, or change in gloss.

No visible abnormalities, 5B hardness achieved.

17

Thermal Shock Resistance

-20℃ for 24 hours (1 cycle) → 65℃ at 95% humidity for 24 hours (1 cycle), for a total of 7 cycles (168 hours).

No visible abnormalities, 5B hardness achieved.

18

Temperature and Humidity Cycling

High temperature set at 65°C with 95% humidity, low temperature at -40°C, each temperature held for 1.5H, transition time is 20 minutes, 20 cycles total. After 4 hours at room temperature, tested with 5B grid. No color change, bubbling, peeling, falling, or change in gloss.

No visible abnormalities, 5B hardness achieved.

19

Contamination Resistance

Tested against lipstick, coffee, water-soluble ink, and black crayon, allowing at least 1 hour of contact at room temperature. The surface should remain clean after washing with tap or soapy water.

No visible contamination

20

QUV Test

UVA-313; Standard light: 0.72W/㎡/nm; Temperature: 70℃; Test duration: 100 hours. After testing, the paint surface should show no cracking, with a ΔE≤1.0 (this test result can be largely affected by the base paint color).

No paint surface cracking observed.

21

Salt Spray Test

Temperature at 35℃, humidity at 95%, with a 5% NaCl solution spray. After 48 hours in the salt spray environment, the product surface should show no rust or discoloration.

No visible abnormalities