Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by China National Coatings Industry Association Standardization.
This standard is under the jurisdiction of China National Coatings Industry Association.
High solid solvent borne automotive coatings
1 Scope
This standard specifies the classification, requirements, test methods, inspection rules, and marking, packaging and storage for high solid solvent borne automotive coatings.
This standard is applicable to high solid solvent borne coating products and decorative and protective OEM coatings for automotive surfaces. The products are intended for uses in passenger vehicle, commercial vehicle, trailer, combination vehicle, etc.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 1723 Determination of viscosity of coatings
GB/T 1725 Paints, varnishes and plastics - Determination of non-volatile-matter content
GB/T 1728-1979 Methods of test for drying time of coatings of paints and putties
GB/T 1732 Determination of impact resistance of film
GB/T 1740 Determination of resistance to heat and humidity of paint films
GB/T 1766 Paints and varnishes - Rating schemes of degradation of coats
GB/T 1770 Rubbing test of coatings and putty films
GB/T 1771 Paints and varnishes - Determination of resistance to neutral salt spray (fog)
GB/T 1865 Paints and varnishes - Artificial weathering and exposure to artificial radiation - Exposure to filtered xenon-arc radiation
GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling
GB/T 5209 Paints and varnishes - Determination of resistance to water - Water immersion method
GB/T 6682 Water for analytical laboratory use - Specification and test methods
GB/T 6739 Paints and varnishes - Determination of film hardness by pencil test
GB/T 6753.3 Methods of test for package stability of paints
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 9274-1988 Paints and varnishes - Determination of resistance to liquids
GB/T 9276 Methods of exposure to natural weathering of coating
GB/T 9278 Temperatures and humidities for conditioning and testing of paint specimen.
GB/T 9286 Paints and varnishes - Cross cut test for films
GB/T 9750 Marks for package of coating products
GB/T 9753 Paints and varnishes - Cupping test
GB/T 9754 Paints and varnishes - Determination of specular gloss of non-metallic paint films at 20°, 60°and 85°
GB 11121 Gasoline engine oils
GB/T 13452.2 Paints and varnishes - Determination of film thickness
GB/T 13491 General rule for packing of coatings
GB 17930 Gasoline for motor vehicles
GB/T 23989 Determination for the solvent resistance of coatings by solvent rubs
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
solid color paints
paint that does not contain effect pigments such as metal or pearl.
3.2
base coats
paint on the surface of which clear coat is required.
3.3
solid color paints/monocoats
paint on the surface of which clear coat is not required
3.4
primer surfacer
paint applied between the base coating and the surface coating among multiple coatings.
3.5
clear coat
varnish applied on the base coat and finish coat to form a protective decoration coating.
3.6
application solid
the solid by weight of the coating under construction application conditions.
4 Classification
This standard classifies high solid solvent borne automotive coatings into primer surfacer and finish coat, the latter of which is divided into solid color paints, solid base coats, metallic base coats and clear coats.
5 Requirements
The products shall meet those specified in Table 1.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Requirements
6 Test procedure
7 Inspection rules
8 Marking, packaging and storage
