Removing Silicone From Regrind
IMM 06/01

We are planning to use a percentage of reground 30 percent glass-filled nylon 6 for a molded automotive application. There is a potential that the regrind may contain silicone gaskets or seals if they are not removed from the assembled component prior to regrinding. What practical techniques exist for removing the reground silicone particles from the nylon? We tried a nozzle tip filter but it lasts only a few weeks before being eroded by the nylon

Try a unit similar to a metal separator that detects density. This works for a variety of foreign compounds. - B. Lowe, Duni De Ster Corp., Thomaston, GA, (706) 647-2205, bob.lowe@desteracs.com.