This patented technology is based on the concept of "stitch-a-hole/seal-a-hole", to provide an exceptionally high level of waterproofing for Goodyear welts, Littleway, and 3 Needle constructions.
PermaSeal® Systems were first developed in 1992 specifically for Goodyear Welts.
PERMASEAL® pressure sensitive tape is applied to the lining.
(This step not required for unlined footwear.)
PERMASEAL® tape is applied to the outside perimeter of the rib (inseam).
PERMASEAL® liquid sealer is brush applied before bottom filling.
WATER will not ENTER the shoe at the "Littleway" Stitch area...
either THROUGH the stitch hole or AROUND the stitch hole!
PERMASEAL® Tape is applied to to the lasted bottom prior to sole spotting and "Littleway" stitching.
PERMASEAL® "3-Needle" stitch system has been subjected to extensive severe and stringent laboratory testing and "real life" trials.
PERMASEAL® Tape is mechanically applied to the stitch shelf or lip of the shell bottom
Both natural and synthetic water-based seam sealers are available to complete the waterproof package. Whether used with PermaSeal®, booties, or just waterproof leathers, these sealers will stop water from entering the shoe through stitched upper seams. All systems require 2 coats – the first to seal leather fibers and stitch holes; the second to give a firm, flexible, pinhole- free top coating.