3M Weld Thru II

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3M Weld Thru II is designed to protect metals against corrosion after welding. The coating prevents metals from degrading while resisting weld spatter. This easy to use aerosol dri es in five minutes leaving behind a protective coating. 3M's innovative coating harnesses the science behind bimetallic corrosion, with a zinc base that draws the corrosion away from bare metals, to prevent decay between welded metal surfaces. Tough on corrosion and easy for welding. Work faster and more efficient with 2M Weld Thru II. Show more