Test and evaluation method of box-type UV penetration resistance of car coating

Test and evaluation method of box-type UV penetration resistance of car coating

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The "Test and Evaluation Method for Ultraviolet Penetration Resistance of Automobile Coatings" was proposed by the Automobile Anti-corrosion and Aging Branch of the Chinese Society of Automobile Engineering and approved by the Chinese Society of Automobile Engineering. This standard is under the jurisdiction of the China Automotive Engineering Society. This version is a draft for soliciting comments on changing the test method, for reference only.

1 Scope

This standard specifies the testing and evaluation methods for the UV penetration resistance of single or composite coatings on automobile bodies.

This standard applies to the process verification and material development process of automobile body coating process. The testing and evaluation process of Haotian's other coating systems that have requirements for UV penetration can also refer to the test and evaluation process of UV penetration resistance.

2. Normative references

The following standards are indispensable for the application of this document. For dated reference documents, all subsequent amendments (excluding errata content) or revisions do not apply to this specification, but it is encouraged to reach an agreement based on this specification All parties study the possibility of applying the new version of these documents.

GB/T 1727 General Preparation Method of Paint Film

GB/T 3186 Paints, varnishes and raw materials sampling for paints and varnishes

GB/T 9278 Coating Sample Condition Adjustment and Test Temperature and Humidity

GB/T 13452.2 Determination of film thickness of paints and varnishes

JJG 178 UV, visible and near-infrared spectrophotometric jealousy verification regulations

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