... and coatings, rubber, plastics, FRP, artificial stone, putty and other products as filler and weight-reducing agent.( ... ).Its application of hollow glass in Putty Compares with the tradition putty , the new type one adding ... and large volume.Compared with the ordinary putty,new putty with 5%of it,can replace 10- ... be increased 15-25%than that of ordionary putty.and saving resin about 8%.Its application ...