NOW!... EXTENSIVE TRACTION TESTS PROVE
NEOTEX CARBON BLACKS PROVIDE SUPERIOR SAFETY FACTORS FOR TIRE AND TREAD RUBBERS! 16
C&ΕΝ
1 HIS is the story of an important development in automotive safety . . . another Columbian Carbon Company contribution to the industry. Originally NEOTEX Blacks were designed to provide SBR passenger tires with soft ride and low noise, and as a channel black replacement. Also, for natural rubber off-the-road truck tires with superior chipping and cutting resistance. In the course of performance evaluation, it was found that NEOTEX Blacks gave excellent traction. To determine traction characteristics exactly, tests in the U. S. and Canada have just been completed . . . following, as closely as possible, National Safety Council Test procedures. Ice traction and skid tests were made on Lake Bernard in the North Bay, Ontario area. Packed snow tests were made on roads in the immediate vicinity. A mediumsized 1961 passenger car, checked for alignment, balance, brakes, and equipped with a 40 mph governor, was used. Evaluated were SBR rib passenger tires containing as the control, STATEX 125 (ISAF), and as the experimental, tires containing NEOTEX 130. Also evaluated were SBR snow tires having as a control, STATEX R (HAF), and as the experimental, NEOTEX 100. Two types of tests were made: (1) Traction test consisted of starting car with immediate full acceleration as controlled by the governor from a complete stop, and measuring the stop-watch time to reach a point 20 yards and 120 yards down the course, noting the speed in miles per hour at the 120 yard point. (2) Skid test was conducted by starting car into the test course at a set speed of 20 miles per hour. At a designated point, hand brake was locked, setting the rear wheels, and skid distance accurately measured in feet. Results: On clear ice, the NEOTEX 130 rib tire and the NEOTEX 100 snow tires provided 20 per cent better traction than their respective ISAF and HAF controls. Clear ice skid tests were severe for all tires but directional improvements in the range of 6 to 8 per cent for the NEOTEX were noted. On hard packed snow on an ice base, the NEOTEX 130 tires gave 20 to 25 per cent better traction than the ISAF control and 16 per cent better skid resistance. This 16 per cent improvement at 20 miles per hour amounted to approximately 20 feet. Hill traction tests conducted on packed snow with an ice base showed the NEOTEX 130 rib tire and the NEOTEX 100 snow tire had excellent times to the 20 and 120 yard markers, with surprising traction on the 8 degree slopes. ISAF rib and HAF snow tire controls were unable to gain traction. In further hill tests on 15 degree slopes, the NEOTEX 130 rib tire and NEOTEX 100 snow tires climbed with a slow running start anid were also able to come to a full stop on the slopes and start again without breaking traction. ISAF rib tire and the HAF snow tire controls were unable to climb the hill, breaking traction even with a slow running start. Further extensive skid and traction tests are now in progress. For full details, write or wire . . ·
COLUMBIAN CARBON COMPANY 380 Madison Avenue · New York 17, New York C& ΕΝ
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