30% of the top 10 brands of Hangzhou paint are unq

2022-08-07
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30% of 10 brands of Hangzhou paint coatings are unqualified

30% of 10 brands of Hangzhou paint coatings are unqualified

June 25, 2007

[China paint information] recently, Xiaoshan branch of Hangzhou Administration for Industry and Commerce conducted quality monitoring on 10 batches of 10 brands distributed in Xiaoshan commercial city by using PET aerogel coated with flame retardant as the lining material. The inspection results showed that 3 batches did not meet the standard requirements, and the unqualified rate reached 30%

the main problems are as follows:

first, the solid content of the curing agent is not up to the standard as the leader in the B2B field. For example, the solid content of the curing agent of the "Yurun" yellowing resistant crystal transparent primer produced by Shanghai Xinmei coating Co., Ltd. is only 32%, which shall be ≥ 45% according to the standard

second, the fineness exceeded the standard seriously. For example, the measured fineness of the nominal "Diyi" medium grey alkyd ready mixed paint produced by Nanjing Hongjie Chemical Co., Ltd. is 75 microns, while the standard requirement is ≤ 35 microns

third, the alcohol resistance did not meet the standard requirements. According to the standard, the alcohol resistance of the paint shall meet the requirements of "no blistering, no wrinkling, no disassembly of the paint, no abnormal change of the machine film", but some of the inspected paints fail to meet the requirements of this standard. For example, the nominal "Sailu" new national standard semi dumb varnish produced by yuebaoli chemical (Guangzhou, China) Co., Ltd. and the nominal "Yurun" yellowing resistant crystal transparent primer produced by Shanghai Xinmei coating Co., Ltd

fourth, the net content of main agent, curing agent and diluent is seriously lacking. For example, the nominal "Yurun" yellowing resistant crystal transparent primer produced by Shanghai Xinmei coating Co., Ltd. is marked on the package with a net content of: main agent ≥ 1.970kg, curing agent ≥ 0.985kg, diluent ≥ 1.970kg produced according to the customer's order, but the actual content is only: main agent 1.396kg, curing agent 0.672kg, diluent 1.450kg

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