Owens-Corning Fiberglas, Kaylo Core Material: New Product Data (1960)

An eight-page Owens-Corning Fiberglas "New Product Data" booklet, publication 1-IN-1700, printed in October 1960, for Fiberglas Kaylo Core Material, "a rigid mineral insulation composed principally of calcium silicate" used as a fire-resistant core for doors, panels and partitions. It describes two grades, white Kaylo-1200 and pink Kaylo-1800, with their densities, strengths and sizes, and explains how to saw, rout, sand and laminate the material with woodworking tools, noting that the core "is porous and due to the finishing operation, is slightly dusty."

What it shows

The booklet sold Kaylo core as a material that could be "readily fabricated using conventional woodworking tools and practices," with photographs of men cutting it on band saws, table saws and grinders. It does not mention asbestos. Owens-Corning's Kaylo pipe and block insulation of the same period contained asbestos (see Owens-Corning Fiberglas, Kaylo Pipe and Equipment Insulation, with Its 1953 Piping and Equipment Catalog (1953)); whether the core material did is not stated here. On J-M fiber in Kaylo, see G. C. Stefango to Don S. Wright on Discontinuing J-M Chrysotile in Kaylo (1961).