Document o1g7JMa0ENykkqDoKY4wXg0R

'J- 5. V 4 Research Center I February 17, 1954' PLAINTIFF'S EXHIBIT K-I515 * CONDUCTIVITY LIME-SILICA PIPE COVERING Pabco Caltemp pipe covering has a lower conductivity than Theroobestos below the 400 mean temperature point, but Thermobeatos is a better insulation above that point. The reason for the Caltemp pipe covering advantage below 400 mean has not been determined. The 1954 figures are graphically presented on the following page. Brand 1954 TESTS Riensobestos Pabco Caltemp Calsilite Deneitv 12.2 U.9 13.6 Lime-Silica Pipe Covering Conductivity at Mean Temperature-F 200 mi 500 600 .39 .46 (.53) .37 .46 (.55) .48 .57 .64 1951 TESTS Thermobestos K and M Kaytherm Calsilite Kaylo 11.2 10.5 13.0 10.6 .37 .50 .56 .45 .55 .40 .54 .65 .75 .67 .70 THERMAL CONDUCTIVITY LIME SILICA PIPE COVERING *.-/;?-6V - FAlr