Before entering the market, the products of high-quality car clothing brands often undergo comprehensive and strict performance and quality testing to protect the quality of car clothing and the rights and interests of consumers.
In the performance test of invisible car clothing products, you can often hear a project called "double 85" test, so what is called "double 85" test? In addition to the "Double 85" test, what other test items will the invisible car suit go through?
1. "Double 85" test
The "Double 85" test refers to the aging test of the test subject under the condition that the environment is set to 85°C and the humidity is 85%, that is, the harsh environmental reliability test. Through the comparison of product performance changes before and after the aging test, the stability and bearing capacity of the product in the harsh environment of high temperature and high humidity are tested.
Test Purpose
Through the "double 85" test, the weather resistance stability of the car clothing substrate under high temperature and high humidity conditions can be tested to ensure that the substrate can maintain good performance in harsh environments, and there will be no problems such as hydrolysis and cracking.
Test the meaning
In summer, when the outside is in a high temperature state, the surface temperature of the car paint is often as high as 60°C under the sun exposure, and some dark car paint surfaces can even exceed 80°C. In addition, air humidity tends to be higher in some areas due to factors such as weather or geographical location.
The "Double 85" test simulates the influence of these two environmental factors on the product at the same time, and tests the high temperature and damp heat resistance of the car clothing to ensure that the car clothing can maintain stable and excellent performance in the real environment, which is of practical significance.
2. Mechanical property test
One of the core functions of the invisible car clothing is the ability to resist scratches, and this tests the physical and mechanical properties of the car clothing. In order to ensure the physical protection performance of the invisible car clothing, the product usually needs to undergo the following tests:
Through stretching, puncture, stone impact, etc., the wear and scratch resistance and impact resistance of the car clothing can be judged, so as to ensure that the car paint can be protected from damage in the face of flying sand and stones, accidental scratches, malicious scratches, etc.
3. Stain resistance and corrosion resistance test
In the car environment, the car is often eroded by various stains and corrosive substances. In order to ensure that the paint surface can be maintained after the invisible car clothing is attached, the following tests are usually carried out on the product:
Through the above tests, it can simulate the corrosion and penetration effect caused by rainwater, guano insect corpses, chemical clearance, acid and alkali reagents, etc., on the surface of the car coat, so as to avoid the surface of the car coat from being overshadowed and even leaving spot marks.
4. Weather stability test
In the face of long-term exposure to wind and rain, it is necessary to ensure that it has good weather stability in order to protect the safety of the car paint for a long time. The following test methods are usually used for the weathering stability of the car clothing:
Through these tests, it can avoid serious loss of light, cracking, hydrolysis, yellowing and other phenomena in the long-term use of the car coat, which will affect the service life of the car coat and even endanger the safety of the car paint.
5. Glue performance test
The invisible car coat is glued to the paint surface, and the performance of the glue will directly affect the construction effect and service life of the car coat. In order to ensure the performance of the glue, the following test methods are usually used:
Annular tack test
Hanging stickiness test
Peel strength test
Through the above items, you can test the difficulty of attaching the car clothing, the sticking effect, and whether the corners are prone to warping, so as to ensure the good glue performance of the car clothing.
6. Gloss test of car clothing
The invisible car clothing has the effect of brightening the gloss of the car paint, which mainly depends on the transparency and mirror reflection ability of the car clothing, so the car clothing is often tested as follows:
High-gloss transparent gloss test
Fixed chalkboard gloss test
Visible light transmittance test
Through the above tests, it can be measured that the invisible car clothing can improve the gloss of the paint surface and whether it will cause the paint color to be distorted, so as to ensure the aesthetics of the paint surface after installation.
7. Real vehicle mounting test
Through the actual car mounting, it can make obvious and intuitive judgments on the ductility, construction difficulty, edge closing effect, and whether it is prone to glue marks, offset printing, etc., so as to ensure the quality of the car coat from the perspective of mounting and pasting.
In addition to the above core test items, many brands will also test the scratch repair rate and UV blocking rate of the car clothing, and regularly conduct sampling tests on different batches of products.
