GB/T 1720-2020 《Circle-drawing test of coating films》 Related products
This standard specifies a test method for assessing the degree of peeling of a paint film from a substrate. The failure of the paint film under vertical pressure and swirl/spin torque is tested by fixing the test plate to the test bench and drawing an overlapping circular line pattern on the paint film with a rotating needle. This method is suitable for single-layer flat paint films on hard substrates, but only provides an empirical evaluation of adhesion and does not fully measure adhesion.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active |
|---|---|
| CCS | G50 | ICS | 87.040 |
| Release Date | 2020-11-19 00:00:00 | Implementation Date | 2021-10-01 00:00:00 |
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Extended reading
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