Coating standard: Hg / T 2240-91 S01-4 polyurethane varnish

Core tips: 1 subject content and application scope this standard specifies the technical requirements, test methods and inspection rules of S01-4 polyurethane varnish for packaging, marking, storage and transportation The product is suitable for wood decoration, metal protection and wooden boat shell protection The product has excellent adhesion, hardness, luster and other characteristics Simple and stimulating construction Small taste 2 reference standard GB 1721 determination of appearance and transparency of varnish, clear oil and diluent GB 1722 determination of color of varnish, clear oil and diluent GB 1727 paint film Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Home of coatings: 1 subject content and scope of application this standard specifies the technical requirements, test methods and inspection rules of S01-4 polyurethane varnish for packaging, marking, storage and transportation The product is suitable for wood decoration, metal protection and wooden boat shell protection The product has excellent adhesion, hardness, luster and other characteristics The construction is simple and the pungent taste is small 2 reference standard GB 1721 determination of appearance and transparency of varnish, oil and diluent GB 1722 determination of color of varnish, oil and diluent GB 1727 general preparation of film GB 1728 determination of drying time of film and putty GB 1764 determination of film thickness GB 3186 sampling of coating products GB 5208 determination of flash point of coating rapid balance method GB 6682 specification of laboratory water GB 6739 Pencil test method for film hardness GB 6742 test for film bending (cylindrical axis) GB 6751 test method for volatile and non-volatile substances of paints and varnishes GB 6753.4 test method for outflow time of paints and varnishes ISO Flow cup method GB 9271 standard test panel for paints and varnishes GB 9274 determination for liquid resistance of paints and varnishes GB 9278 temperature and humidity for state adjustment and test of paint samples GB 9278 9286 paints and varnishes - Determination of specular gloss of paints and varnishes without metallic pigments - 20 °, 60 ° and 85 ° of paints and varnishes without metallic pigments - visual colorimetry of paints and varnishes - 3 technical requirements - products shall meet the following technical specifications 4 test method 4.1 the appearance and transparency of the original paint shall be in accordance with GB 1721 4.2 the color of the original paint shall be in accordance with GB 1722 4.3 the appearance of paint film shall be in accordance with GB 9761 4.4 viscosity shall be carried out according to No.6 cup method in GB 6753.4 4.5 solid content shall be in accordance with GB 6751 4.6 the drying time shall be in accordance with the method a in GB 1728 4.7 the hardness shall be in accordance with GB 6739 4.8 flexibility shall be in accordance with GB 6742 4.9 the adhesion shall be carried out in accordance with GB 9286 without adhesive tape 4.10 the gloss shall be measured at 60 ° according to GB 9754 4.11 the water resistance shall be in accordance with Article 5 of GB 9274, and distilled water shall conform to class III water of GB 6682 4.12 flash point shall be in accordance with GB 5208 4.13 general conditions of test 4.13.1 sampling shall be conducted according to GB 3186 4.13.2 the plate making method shall be in accordance with GB 1727 4.13.3 the standard test plate shall be conducted according to GB 9271 4.13.4 environmental regulations for treatment and test shall be carried out in accordance with GB 9278 4.13.5 the film thickness shall be measured according to GB 1764 5 Acceptance rule 5.1 all technical requirements listed in this standard are type inspection items All items except flash point are factory inspection items Under normal production conditions, type inspection shall be carried out at least once a year 5.2 the products shall be inspected by the inspection department of the manufacturer according to the provisions of this standard, and the manufacturer shall ensure that all the products leaving the factory meet the technical requirements of this standard The product shall be provided with a certificate of conformity If necessary, use instructions and precautions shall be attached 5.3 the receiving department has the right to inspect the products according to the provisions of this standard If the quality does not meet the technical indicators of this standard, both the supplier and the Demander shall take samples again according to GB 3186 for re inspection If the quality still does not meet the technical specifications of this standard, the products are unqualified, and the receiving department has the right to return the products 5.4 the product shall be sampled according to GB 3186, and the sample shall be divided into two parts, one for sealed storage and the other for inspection 5.5 in case of any dispute on product quality between the supplier and the demander, the product quality supervision and inspection institution shall conduct arbitration inspection 5.6 both the supplier and the Demander shall inspect and check the product packaging and quantity If the package is found to be damaged or missing, the quantity is different, and the mark does not meet the requirements, it is deemed as unqualified 6 Packaging, marking, storage and transportation 6.1 packaging mark shall be in accordance with GB 9750 6.2 packaging, storage and transportation 6.2.1 products shall be stored in clean, dry and sealed containers When the product is stored, it shall be kept ventilated and dry to prevent direct sunlight, and shall be isolated from the fire source When the temperature is too high in summer, it shall be cooled 6.2.2 during product transportation, it shall be prevented from rain and sunlight exposure, and shall conform to relevant regulations of transportation department 6.2.3 if the products meet the storage and transportation conditions in 6.2.1 and 6.2.2, the effective storage period shall be one year from the date of production Appendix a construction reference (Reference) A1 brush coating method, spray coating method, spray coating method and dip coating method can be used During A2 construction, the viscosity can be adjusted with 200 paint solvent oil A3 when brushing or spraying on wood surface or metal surface coated with primer, each coating should be 15-20 μ m (dry), and one coating can be applied after the previous one A4 in order to prevent the paint from skinning during use, when the remaining paint is not used temporarily, the surface can be covered with a small amount of 200 paint solvent oil ——————Additional note: this standard is proposed by the science and Technology Department of the Ministry of chemical industry of the people's Republic of China This standard is under the jurisdiction of the National Technical Committee for standardization of coatings and pigments This standard is drafted by Tianjin Lihua color material general factory The main drafters of this standard are heixuguang, Yang Shuiwang and Feng Zhaofeng Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,