Method for forming glass fibers

In the process of producing continuous glass fibers in which streams of glass are attentuated as filaments from a bushing positioned within a forming zone, the filaments are passed through pre-pad sprays and sized by a size applicator and gathered by a gathering shoe, the improvement comprising introducing a first quantity of air into contact with said filaments between said bushing and said pre-pad sprays and a second quantity of air into contact with said filaments between said pre-pad sprays and said size applicator, said first quantity of air and said second quantity of air being separate and distinct quantities of air, the pre-pad sprays being positioned a distance of from about 12 to about 24 inches from the bottom of said bushing, the distance from the bottom of said bushing to said size applicator being from about 28 inches to about 42 inches, said first quantity of air being introduced downwardly at an angle of about 22.degree. below the horizontal and said second quantity of air being introduced downwardly at an angle of about 45.degree. below the horizontal, said first quantity of air being introduced along a length of about 18 inches of the filaments at a rate of about 400 CFM and said second quantity of air being introduced along a length of about 18 inches of the filaments at a rate of about 200 CFM.