YKK

Fastening products are the first and still the most important product of YKK. Within YKK they distinguish between the Slide Fastener Division, the Textile and Plastic Products Division, and the Snap Fastener and Button Division.

Zippers

YZip: Metal zipper, extra durable for jeans

Ever Bright: Metal zipper, polished for visual appeal and corrosion resistance

Excella: Metal zipper, polished and plated for visual appeal, also in different colors

Conceal: Plastic coil zipper with no visible teeth

Vislon: Rugged plastic zipper

Hook and loop products, more commonly known under the Velcro brand name of a competitor.

Plastic parts, including various types of clips and buckles

Snaps and buttons, including snap fasteners and jeans buttons

YKK Waterproof Zipper

The standard water-resistant zip, as developed by YKK, consists of a normal coil zip (which has no water-resistance at all) with a PU-coated strip on the outside of each half. Although these two PU strips meet in the middle when the zip is done up, a small gap remains between them that is sufficient to let in water. True waterproof clothing designs still have to employ storm flaps that completely cover the zip. Furthermore, the action of the slider moving over the PU tape abrades it, eventually leading to reduced water-resistance and failure.

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YKK

YKK Waterproof Zipper