A method of seam sealing fabrics using spray for greater fluid-resistance includes placing a fabric having an existing seam (10) through feed rollers (80, 90) and spraying flowable sealant onto the existing seam (10). Atomized liquid silicone or other sealant flows out of a spray nozzle (50), expanding expands outwardly and resulting in a sprayed area (140) of uniform thickness in the middle and tapering out along the edges to form a smooth transition to the fabric. The use of atomized sprayed silicone shows great improvements in adhesive and waterproofing properties over prior art silicone tape sealing methods.
