Place water in agitator-equipped vessel. Add the EDTA with agitation. continue mixing and add the orthosilicate slowly to surface. Avoid spattering. Break up all lumps of silicate. After silicate has dissolved, add Solar F-183 and F-382. Next add the ether or coupling solvent. Continue mixing for 15 to 20 min to assure homogeneity. During manufacture, avoid inhaling the alkaline silicate dust. Also avoid any skin or eye contact with the liquid.