ATS conducts coating weight and thickness testing to determine the quality of anodized aluminum, phosphated, chromated, painted and aluminized or galvanized steel for comparison to specification requirements.
In addition to the natural barrier protection of the coating, zinc on iron or steel provides sacrificial protection against corrosion in proportion to the thickness or weight of the coating. Various specifications offer different classes of coatings, so our customers should choose the coating weight that suits the environment (industrial, marine, rural, tropical, etc.) and their product application.
One of the common zinc coatings is grade G90 which contains 0.9 oz/sqft. feet (both sides of the sheet) or approximately 0.80 mils per side. Typical applications for galvanized steel sheets are bodywork, appliances, corrugated roofing, garage doors and plumbing.
Some of the commonly used test methods for which ATS is certified by A2LA are: ASTM D7091 (Non-destructive measurement of dry film thickness of coatings applied to ferrous and non-ferrous metals), ASTM A90 (Measurement of coating weight on galvanized articles) and ASTM B137 (Measurement of coating quality on anodized aluminum).
