In the application of salt spray corrosion test chamber test before the sample

with clean cloth or absorbent will moisture wipe water, or with no oil stains of dry and boring gas Drying, when forced, can apply magnesium oxide paste, this paste is 10g test drug grade magnesium oxide added to 100mL of pure water.If not otherwise specified, the test piece should be covered with a suitable layer of magnesium oxide, otherwise the substrate will be visible due to staining, or the coating will be defective due to marking. The test should be covered with a suitable protective layer thickness. Insulating materials such as ceresin wax, butadiene tape, etc. https://www.standard-groups.com/en/News/705.html#m