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ft > f Research Center December 9, 1953 R. Jacobs - Manville Competitive Insulation Study The following samples of competitive insulation received during November, 1953 have been sent to you for physical tests. Type Mmag. Mag. * Mag. Mfg. Efcret II Pabco n n * K&M V.Pipe Covering <xlx36 1-1/2 x 36 aCfx 1 x 36 lCL6^x 1-1/2 x 36 A&x 2-1/2 x 36 <19^ 1-1/2 x 36-Seg Sect 3 3 5 2 1 5 f-rz'ae 1-1/2 36 fl^x 2 x 36 1 1 Blocks /I x 6 x 36 *3 x 6 x 36 <1x6x36 x 6 x 36 *9 x 6 x 36 /I x 6 x 36 1*3 x 6 x 36 Ho. 5 5 fr 5 5 5 xt'r 5 5 Mag. Mundet JS'x 1 x 36 \ fi&x l-l/2 x 36 rtf x 3 x 36 (D. L.) 5 /I x 6 x 36 1 ^a 1 Lime-Silica Pabco (Caltemp) " Pabco (Caltemp) * -Pabco (Caltemj) /fx 1 X 36 /12 x 1-1/2 x 36 $2 x 3 x 36 (D. L.) 5 1 2 Lime Silica K&M (Kaytherm) KSM (Kaythern) none received Superex 1500 Superex 1500 Superex 1500 Pabco (Prasco 15C)-4 x 1-1/2 x 36 Pabco ^ (Prasco 15C) *3 x 1-1/2 x 36 Pabco (Prasco 15C) *12 x 1-1/2 x 36 (seg) 4 4 1 *1x6 *3 x 6 Superex 1900 Pabco (Prasco19C) none received /l x 6 x 36 5y Superex 1900 Pabco (Prasco 19C& $ x 6 x 36 5/ I It is requested that physical properties be determined as follows: denstty; flexural strength; abrasion; hardness; 1200F heat soak resistance; shrinkage and weight loss, and moisture content. >>/ 7 _0y/. y DEFENDANT R. Jacobs December 9, 1953 ill insulation received to date has been photographed, and inspected for dimensions and appearance by Manville Quality Control. Similar sizes of Johns-Manville Thermobestos and K.P. Magnesia have been ordered and will be sent to you indue course for physical property tests. Samples of the competitive blocks and pipe covering have been submitted for conductivity and hot pipe tests. Please include all people shown on this distribution list when the physical properties are reported. bjd cc: S. Collier - GE J. . Begert . GE P. D. Cannon - DH C. A. deVyver - DR . C. Lindstrom - DH R. C. Parlett . DH A. 6. Cummins - Research . R. Williams - Research . A. Farrell - Research J. C. Rademaker - Research File: 432 J. C. Rademaker