HEAT RESISTANT EXPANDABLE PACKING

摘要

PURPOSE:To attain press bonding without partial insufficiency of press bonding strength even when the surfaces of the fitting parts of refractories to be joined are rough and to improve sealing property. CONSTITUTION:Refractory powder and a refractory fibrous material are used as principal starting materials and 0.2-20 pts.wt. thermally expandable microbeads and 3-50 pts.wt. (expressed in terms of resin) vinyl acetate resin emulsion and/or rubber latex as a binder are added to 100 pts.wt. of the principal starting materials.