Royal 120FC (flux coated) and Crown 120 (bare) are excellent alloys for building-up and joining carbon steels, alloy steels, cast iron and non-ferrous metals (except white metals). Because of their thin flowing characteristics, they may be used to replace more expensive silver alloys, when higher temperatures are acceptable. At low temperatures (1400°F-1600°F) the deposit has controlled fluidity which makes it ideal for surfacing and build-up of parts subjected to frictional wear. The Royal 120FC and Crown 120 are excellent build-up alloys as they work-harden with use. These alloys can be used to overlay and build-up bearings, shafts, valve seats, wedge bars and steering knuckles. The Royal 120FC and Crown 120 will outwear the original steel when used to build-up worn or broken gear teeth! At high temperatures (1650°F-1750°F) the Royal 120FC and Crown 120 becomes very thin flowing and will produce high strength joints with only .001” to .003” clearance. They can be used for close fitting joints on broken drills, mill cutters, furniture, bicycle assemblies, attaching carbide cutting tips and many other applications requiring high strength.