coated with a metallized coating 5 by wet chemical currentless deposition each filament 4 has the coating 5 therearound but the filaments 4 are not flued that is there is no coalescing a woven fabric of 100 polyacrylonitrile filament yarn has the following textile construction warp and weft 238 dtex effective of dtex 220 f 96 z 150 38 5 warp filaments cm and 27 weft filaments cm it is immersed at room temperature in a hydrochloric acid bath ph u2266 1 of a colloidal palladium solution according to german auslegeschrift no 1 197 720 after a residence time in the bath of up to about 2 minutes during which it is gently moved the fabric is removed and washed with water at room temperature it is then immersed for about 1 5 minutes in a 5 sodium hydroxide solution at room temperature the fabric is then washed with water at room temperature for about 30 seconds and subsequently introduced at room temperature into a solution consisting of 0 2 mole l of nickel ii chloride 0 9 mole l of ammonium hydroxide 0 2 mole l of sodium hypophosphite into which ammonia is introduced in such a quantity that the ph value at 20 u00b0 c is approximately 9 4 after only 10 seconds the fabric begins to darken in colour through the deposition of nickel after 20 seconds the fabric floats to the top giving off hydrogen gas and even at this stage is completely covered with nickel the material is left in the metal salt bath for about 20 minutes removed washed and dried during these 20 minutes the material dry weight 7 2 g takes up about.