Document R2jg5EMp4dKbvbB0z9qKqdwja

I 1210 1010 B2SH on/j, ij( A. J. Rego R. A. Garcia J. R. Fallon September 28, 1971 Mr. Robert L. Kooh, President Ashdee Division George Kooh Sons, Ino. 10 South Tenth Avenue \ Evansville, Ind. 47701 ^Dfar Mr. Kooht In response to your phone oall last week to J. Jt. pailon, the Thermlnol PR series heet transfer fluids whloh oontaln poly chlorinated biphenyls (PCBs) are under Increasing scrutiny by various governmental agencies and scientific research groups. In some studies certain PCBs have been found to be persistent environmental oontamlnants and possibly Injurious to certain forms of bird, aquatic and animal life. Accordingly, It is very Important that PCBs be kept out of the food oh&in. We have terminated the sale of Thermlnol PR fluids Into any new heating systems and have removed Thermlnol PR fluids from those applications Involving food or food related produots, animal feed, pharmaceuticals and packaging materials. The latter, packaging materials. Includes coating of paper and board where the Ashdee coating units are used. In these ap plications, Thexminol 55 or Thermlnol 66 which do not contain PCBs, have replaoed the Thermlnol PR fluids. Thermlnol 55 is a synthetic product comparable to the common petroleum derived heating fluids such as Humbletherm 600 which Is used in many roll and curtain coater systems. Thermlnol 66 Is used where system temperatures are above 550*P, because of its superior thermal stability over Thermlnol 55 and the petroleum oils. DSW 018077 STLCOPCB4004622 -2 I have attaohed produot literature on both Therminol 55 and Therminol 66- for your perusal. i Environmental conscious lndustrlss using Thtrminol fluids hav been cooperative toward replacement of Therminol PR fluids with the non-piJB containing Therminol 55 and Therminol 66. , Should you have any questions, please oontaot your local Monsanto representative who is A. J. Rego at Monsanto Company 1501 Madison Road Central Trust Building Cincinnati, Ohio 45206 (513) 751-6707 or me in St. Louis* Very truly yours. cs Enel. D. B. Roush Product Specialist Heat Transfer Fluids DSW 018078 STLCOPCB4004623