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| What is the difference between Eastman 168 and Eastman 168-CA? |
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| Both products are bis(2-ethylhexyl)-1,4 benzenedicarboxylate and are very good alternatives to orthophthalate plasticizers. Eastman 168-CA also contains an antioxidant that is 1,1,3-tris (2-methyl-4-hydroxy-5-t-butyl phenyl) butane. This antioxidant enables use in 60° wire. As the temperature of the wire increases, the plasticizers will become more likely to volatilize, thus changing the physical properties of the PVC over time. Underwriters Laboratories (UL) has developed a protocol (UL-83) to determine the change in physical properties as the vinyl samples are aged under elevated temperature. Under this protocol, the vinyl must retain 65% of the elongation properties after heat aging that were present before the aging process. Eastman 168-CA offers good permanence, good electrical properties, and superior low-temperature flexibility. |
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