What is the maximum filling capacity of an anaerobic sealant?

What is the maximum filling capacity of an anaerobic sealant?

• A. 0.5 mm
• B. 1.27 mm
• C. 2.5 mm
• D. 0.125 mm

Answer: (B)

The concept here is how thick a layer of anaerobic sealant can fill between mating surfaces while it cures. These sealants harden when confined between close-fitting metal parts with little or no air, so they must bridge the gap but not exceed what the formula can fill. The maximum gap they can reliably fill is about 1.27 mm (0.050 inches) for many automotive formulations, which is why this option is the best choice. If the clearance were larger, the sealant could fail to fill fully and seal properly, so you’d need a different product or method.

The concept here is how thick a layer of anaerobic sealant can fill between mating surfaces while it cures. These sealants harden when confined between close-fitting metal parts with little or no air, so they must bridge the gap but not exceed what the formula can fill. The maximum gap they can reliably fill is about 1.27 mm (0.050 inches) for many automotive formulations, which is why this option is the best choice. If the clearance were larger, the sealant could fail to fill fully and seal properly, so you’d need a different product or method.