Kapp Alloy & Wire was founded by Mr. Donald Black in 1945, to sell his first invention - ALUMITE™ - an extremely strong & easy to use solder for Aluminum and white metals. Alumite™ is still used today around the world for casted alloy repairs. Since its humble beginning in Don's garage, Kapp Alloy has focused on product quality and innovation. Throughout our history, our solder has been found in the latest technology. Kapp Alloy solder was part of every telephone Western Electric and AT&T made, and was part of every microwave made in the USA. Kapp solder even went to the moon and back in instrumentation aboard the US Apollo missions!

Where We Are Heading


Now in our third generation of engineering leadership, Kapp Alloy & Wire specializes in high-purity solder, spray wire, and fluxes in the temperature range of 150°F to 800°F (65°C to 427°C). Kapp Alloy’s solders are produced in over 200 alloys and forms – from 500lb. payout paks of Tin-Zinc spray wire to handy 9in. Alumite rods and complete soldering kits.

At Kapp Alloy & Wire, we continue to improve our Precision Microcasting™ process and expand our expertise to remain technology leaders in solder manufacturing. Current customers include General Electric, Standard Motor Products, Vertical Seal, Surface Modification Systems and electronics manufacturers worldwide. New industries served include alternative energy manufacturers of both wind and solar components. If you have a new process or are in need of a hard-to-find or custom alloy, please don’t hesitate to contact us. We are always up for a challenge. We understand that our success is built on your success.

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