Document JroxyDjLpMKvqg8dLzg7nyORr

FILE NAME: Owens Illinois (OWILL) DATE: 1949 Apr DOC#: OWILL077 DOCUMENT DESCRIPTION: Journal Article - New Thermal Insulating Material Combines Light Weight and High Strength New Thermal Insulating Material Combines Light Weight and High Strength -- NEW MATERIALS PREVIEW a4- Pt ': : W -. ~ J/: ^ %i j|~ 1L-- When enginbemng require ments dictate high thermal insulat ing properties along with fireproof ness, light weight and structural strength, a new material now being offered by American Structural Prod ucts Co., an Owens-Illinois subsidiary, deserves consideration. It is a hydrous calcium silicate material sold in various forms and sizes under the brand name of Kaylo. It is manu factured in two densities-- 11 lb. per cu. ft. and 20 lb. per cu. ft. The lighter material is used principally for high temperature insulation. The heavier material is used for building pur poses, as a tile to form structural roof decks. The 20-lb. material is also used as a core for fireproof doors, fabri cated and marketed by U. S. Plywood Cbtp. As a rigid heat insulation, the lowdensity block is suitable for use at service temperatures up to 1200 F. While not intended as a load-carrying member of any structural unit, the insulating block is reasonably strong. Following are some of its properties: Density: about 11 lb. per cu. ft. K factor, at 300 F mean: 0.475 Maximum service temp.: 120 F Standard sizes: Widths, 6 in. and 12 in.; length, 36 in. only; thicknesses, 1 in., 1Yl in., 2 in., 2Vi in., and 3 in. The lighter weight is now available only as blocks in the above range of sizes, as lagging, and in some sectional pipe covering forms. Pipe covering is still in the developmental stage. The more dense material is intended primarily for building construction. It is finding use as a fire proof roof tile, 2Ys by 18 by 36 in. in size, where its effective resistance to passage of heat helps to conserve fuel in winter and to keep the build ing cooler in summer, and its light weight reduces design loads. For this purpose it is supplied with a rein forcing of steel wire mesh to give increased strength and stiffness. The wire is embedded in the block as a The insulating material can be easily cut with hand or power tools. wire basket, providing reinforcing in fire. A door of this type has already both directions. Its dimensional sta- . passed the Fire Underwriters Labora bility is another important considera tory tests for a "one-hour door," in tion in building construction. dicating that it will withstand flames Some of its properties, and the for one hour without being consumed available sizes, are as follows: and without permitting spread of the Density: about 20 lb. per cu. ft. flames through the door. Use of such K factor, at 70 F mean: 0.65 doors in hotels has been suggested. Standard sizes: Widths, 12 in. and While the use of the hew material 18 in.; lengths, 18 in. and 36 in.; in the building field is an obvious thicknesses, 114 in., 1% in., and choice, the manufacturing industries 25/8 in. will also be interested in the possi Use of a block of the 20-lb. density bilities of a lightweight, fire-resistant insulation, faced on both sides with insulation. The 11-lb. block has been plywood, and with the edges covered taken up as a heat insulation for high- with matching plywood, will create temperature service by industry, and. a flush door that can be finished to the heavier material may be expected correspond w ith fine interiors, will to fit into industrial production when be massive in appearance yet light in its properties become more widely weight, and will effectively resist known. APRIL,-<*r949 63 m : n 7t( oiPiXoL'^ sst -Bs