77 is a premium cast iron welding rod that produces high-strength, machineable, crack-resistant, and porosity-free welds. Softer than nickel rods, 77 cast iron welding electrodes have unique properties that allow the cast iron welds to stretch and elongate up to 300 percent more than other rods, preventing cracking.

77 is specially formulated for maintenance applications, is suitable for all types of cast iron, requires no special heating or cooling, and works in all positions.

This one welding rod is ideal for trucking, heavy machinery, automotive, marine, bus lines and RVs. Repair cast iron engine or motor blocks, exhaust manifolds, industrial machines, transmission housings, cylinder heads, and more!

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Please visit http://www.aws.org/technical/facts/ prior to using Muggy Weld products, and adhere to all AWS welding safety guidelines. Further product safety information is available at http://muggyweld.com/safety-guidelines.

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MSDS sheets available with purchase from MuggyWeld.com, upon request.