UV-cured automotive coatings|GPC

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UV-cured automotive coatings

Light up your path with UV coatings.

Consultation hotline00886-4-23286708

Online consultation

Product details

introduction

At GPC, we're at the forefront of delivering top-of-the-line UV-cured coating solutions for the automotive

industry. From wheels to bodies, from interiors to exteriors, our coatings are crafted with precision to

protect and beautify every part of a vehicle. Each bottle of GPC paint embodies our relentless pursuit of

quality, efficiency, and environmental sustainability

Why Choose Us?

Trusted Globally:

Our UV-cured coatings are widely adopted by international automotive brands, reflecting their top-tier performance and reliability.

Eco-conscious:

Our UV-cured coatings, known for their low-solvent and rapid-curing attributes, are part of our drive championing green initiatives.

Tailored to You:

We offer professional formula design and technical support tailored to the specific needs of our clients.

Here's what we offer

● Primer Coating

Our UV and PUV series of UV-cured primers are designed specifically for application to vast automotive

surfaces. They're compatible with a wide range of materials like metal and plastic and ensure exceptional

adhesion and protection. Both of these primer types guarantee top-notch performance.

● Colored Coating

Our UV and PUV series cured colored coatings span a wide color spectrum and even offer bespoke solutions.

Catering to various automotive needs like high luminosity, wear resistance, and superior adhesion, they're suitable not just for our

PU series but also for other conventional materials.

● Clear Coating

Our clear coatings, infused with both UV and PUV technologies, not only guarantee exceptional protection and brightness but also ensure

vehicles maintain their authentic shine. These coatings are adept at shielding against scratches ，UV-induced fading ,and other environmental adversities.

Product Specification : UV-cured automotive coatings

Product Specifications	Main Component: PUV system (Glossy/Matte UV)	Thinner: UV Thinner
Mixing Ratio	1 part	0.2-0.4parts
Filter Mesh	Using a 400 mesh sieve
Spray Gun, Air Pressure	3-4gf/cm2
Film Thickness	Glossy UV: 33±5μm Matte UV: 18±3μm
Irradiation Conditions	(1)Bake at 55℃～60℃ for 6～8 minutes (2)UV lamp specification: 120 W/cm (3) Lamp-to-substrate distance: 15±3 cm Accumulated UV varnish for curing is approximately 700~1000mj/cm² as measured by a GPC energy meter.
Packaging Conditions	Packaging can proceed once the material has cooled down.
Physical Testing Conditions	1. After UV exposure, wait for the coating film and substrate to cool completely before conducting physical tests. 2. Simulated environment test conditions: After UV exposure, let it sit at room temperature for 24 hours before testing. Suitable for ABS.
Suitable Substrates	ABS, ABS+PC, PC, PC+fiberglass, carbon fiber.

Physical Properties Test : UV-Cured Automotive Coatings

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