HG/T 4756-2014 Stain resistant interior emulsion coatings
1 Scope
This standard specifies the product grades, requirements, test methods, inspection rules, and marking, packaging and storage of white and light colored[ “Light colored” refers to having a light color presented by the coating film formed by light-colored paint prepared with white paint as the main component and an appropriate amount of color paste as an additive. According to GB/T 15608, the value (lightness) of such a light color is between 6 and 9 (YD65 among tristimulus values is ≥31.26).] stain resistant interior emulsion coatings.
This standard applies to white and light colored interior coatings that are prepared with pigments, extender pigments and various additives, based on synthetic resin emulsion, and after application of which, a thin stain resistant coating layer with smooth surface can be formed.
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 1728-1979 Determination of drying time of coatings and putty films
GB/T 1766 Paints and varnishes - Rating schemes of degradation of coats
GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling
GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 9265 Determination for alkali resistance of film of architectural paints and coatings
GB/T 9268-2008 Determination of freeze - thaw resistance of latex and emulsion paints
GB/T 9271-2008 Paints and varnishes - Standard panels for testing
GB/T 9278 Temperatures and humidities for conditioning and testing of paint specimens
GB/T 9750 Marks for package of coating products
GB/T 9754 Paints and varnishes - Determination of specular gloss of non-metallic paint films at 20°, 60°and 85°
GB/T 9780-2013 Test method for dirt pickup resistance and stain removal of film of architectural coatings and paint
GB/T 13491 General rule for packing of coatings
GB/T 15608 The Chinese color system
GB/T 23981 Determination of contrast ratio of white and light coloured paints
JC/T 412.1-2006 Fiber cement flat sheets - Part 1: Non-asbestos fiber cement flat sheets
3 Product grades
The products are classified into two grades, namely, Grade I and Grade II, based on the level of stain resistance required.
4 Requirements
The products shall meet the requirements of Table 1.
Table 1 Requirements
Foreword II
1 Scope
2 Normative references
3 Product grades
4 Requirements
5 Test methods
6 Inspection rules
7 Marking, packaging and storage
Annex A (Normative) Scrub resistance test method
