Adhesives: Cold welding

Reviewed by:
Scott Gibson, Contributing Editor
J-B Weld is a specialized kind of epoxy that once cured behaves like steel. According to the manufacturer, it can bond virtually any combination of iron, steel, copper, brass and bronze as well as glass, plastic and wood. Once cured, it can be drilled, tapped and machined like metal. Temperatures of up to 500 degrees F. will not affect the strength of the bond. The manufacturer says the bond is waterproof and resistant to petroleum, chemicals and acids.

Before it sets, the epoxy can be cleaned up with soap and water. It sets in 4-6 hours and cures in 15-24 hours. In November 2004, a pair of 2-oz. tubes could be purchased for about $5.50.

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