Lab-Metal, a single-component aluminum-loaded repair and patching compound, is available in caulking tubes. It does not require two-part mixing and hardens by exposure to air into a metal that can be sanded, grinded and tapped. The dent filler withstands temperatures to 350¿F, or one-time exposures to 425¿F. It is applied by putty knife, paintbrush or spray equipment.

Alvin Products Inc., 350 Merrimack St., Lawrence, MA 01843; (978) 975-4580; fax (978) 975-2621.

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