PPG涂料性能测试 -- 耐化学品性

好知识2014-03-01 00:00:001792

涂料性能测试 -- 耐化学品性

测试工具：

§化学试剂:

MEK (70% IPA for 1K Based)

人工汗液 8.8pH & 5.0pH

摩托油

柠檬汁

Windex

酒精

100%橄榄油

§棉布

涂料性能测试 -- 耐化学品性

测试方法:

用食指包裹棉布，浸润MEK

确定检测区域， 45度角于被测面

次数：50 来回

频率：1来回/秒

长度：50mm

涂料性能测试 -- 耐化学品性

评判标准

Resistance Rating Description

5 No effect on surface; no color on cloth after 50 double rubs.

4 Burnished appearance in rubbed area; slight amount of color on cloth after 50 double rubs.

3 Some marring and apparent depression of the film after 50 double rubs.

2 Heavy marring; obvious depression in film after 50 double rubs.

1 Heavy depression in the film but no actual penetration to the substrate after 50 double rubs.

0 Penetration to the substrate after 50 double rubs or less.