Inquiry (采购产品): Manu of sand proppants Was wondering if you coat sand to make a proppant used in fracturing oil well drilling. I have colorants that coat sand, provided you are coating the sand with some sort of resin. **** Hidden Message ***** Mary Mills 2 Martinique St. Laguna Niguel, CA 92677 USA Company: Dyes, Etc. Phone: 949-249-1300 E-mail: dyes.etc@gmail.com **** Hidden Message ***** dyes.etc@gmail.com