TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Particles: The aspect ratio of ceramic fiber-like particle is 10-200. The porosity of the granules obtained by press molding glass powder and ceramic fiber-like particle is 50-95%. The ceramic fiber-like particle is selected from alumina, alumina-silica glass powder, mullite and zirconia. The sealant contains 5-30 wt.% of filler chosen from mullite, alumina and zirconia.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Particles: The aspect ratio of ceramic fiber-like particle is 10-200. The porosity of the granules obtained by press molding glass powder and ceramic fiber-like particle is 50-95%. The ceramic fiber-like particle is selected from alumina, alumina-silica glass powder, mullite and zirconia. The sealant contains 5-30 wt.% of filler chosen from mullite, alumina and zirconia.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Solvent: The non-aqueous solvent is selected from methyl alcohol, ethyl alcohol, butyl alcohol, toluene and/or acetone. The non-solvent is selected from ethylene glycol, water and their mixture. EXAMPLE - Raw material (in g) (70) comprising boron trioxide (8.0 wt.%), zirconia (7.8 wt.%), barium oxide (50.5 wt.%), silica (28.7 wt.%) and alumina (5.0 wt.%) was mixed with isopropyl alcohol (35) homogenously in a rotary ball mill for 24 hours. The raw material mixture was dried at 80degreesC for 5 hours and re-melted at 1,450degreesC for 2 hours and primary glass was manufactured. The glass was ground, re-melted at 1,450degreesC for 2 hours, poured into stainless steel mold and cooled slowly and mother glass was manufactured. The glass was quenched with distilled water and glass powder for gasket manufacture was produced. The glass had softening point at 710degreesC, glass transition temperature at 630degreesC and coefficient of thermal expansion of 10.6x10-6/degreesC. The starch solution mixture of glass powder (89%) and aluminosilicate fiber (11%) was stirred for 30 minutes. The obtained slurry was molded and pressurized for 10 minutes at pressure of 150 kg/cm3, and dried at 80degreesC for 12 hours and glass/ceramic fiber gasket was manufactured. The gasket was baked. The gasket had shrinkability of 7.9%, apparent density of 3.8 g/cc and apparent porosity of 10%. The gas leakage rate of the gasket was below 0.03 sccm cm-1.