Document 5boRrO5orjgrdbzML028BZ2zD

CertainTeed Corporation Pipe & Plastics Group P.O. Box 253 Sulphur, LA 70663 (318) 882-1441 CertainTeed El March 26, 1991 Mr. Paul Kelly Wolverine Technologies, Inc. P.O. Box 685 Grinnell, IA 50112 RE: MATERIAL SAFETY DATA SHEET (M5DS) PLEASE.ATTACH PARTICULAR IMPORTANCE TO THIS LETTER Enclosed is the Material Safety Data Sheet for the PVC Polymer that your company recently received from CertainTeed Corporation. This product and its code number is: CERTAVINTMCT-1110 This letter is directed to you as our official contact for your company. If someone other than yourself is responsible for the safe handling and use of our product, please see that this person receives this form. We would also appreciate it if you would forward to us that individual's full name, title, and mailing address. In the future, we may have occasion to update this Material Safety Data Sheet with significant new information., In such a case, we would want to forward the revised sheet to the proper person. Thank you for your cooperation. We value your business highly, and will continue to make every effort to provide you the information you need to use our product safely. * BPuce J. Brocka Technical Manager BJB/mc Enclosure 0t -91-0283 CTL001076