GRA - W. R. Grace & Co. 2020 Q3 - Results - Earnings Call Presentation October, 28 2020 11:50 AM W.R. Grace & Co. The following slide deck was published by W. R. Grace & Co. in conjunction with their 2020 Q3 earnings call. For further details see: W. R. Grace & Co. 2020 Q3 - Results - Earnings Call Presentation