papermaking machine where it may be further diluted with water to a lower consistency the diluted suspension then is distributed over a moving foraminous belt under suction to form a non woven fiber structure or wet mat on the belt this wet mat structure may be dried if necessary then treated with a binder and finally thoroughly dried to give a finished non woven mat product in the process of the present invention for the production of glass fiber mats the glass fiber filaments or strands generally are chopped into bundles of fibers about 1 4 34 to 3 34 in length usually about 1 2 34 to 2 34 and preferably about 1 34 long and usually about 3 20 microns in diameter preferably about 15 microns in one embodiment the fibers are added to water containing the surfactant of the invention to form a well dispersed composition suitably the dispersant is present at a concentration of about 5 500 ppm of the solution and preferably about 10 25 ppm alternatively the chopped glass fibers may be coated initially by spraying or otherwise applying the surfactant thereon and then dispersing the coated fibers in the aqueous medium suitably the coated fibers contain.