Slip Coat
A slip coat is a coating applied to the surface of a seal in order to reduce abrasion and increase seal life. Usually slip coating is applied to glass run channel and other dynamic seal applications. The job of the slip coat is to keep the seal working – allowing, for example, a glass window to move in and out – while not scuffing or marring the material running in and out of its channels. Slip coats keep seals from being harmed by cleaning products, they don’t fade over time, and generally are weatherproof.
Flocking
Flocking is similar to slip coating but has a definite look and texture. The process involves applying a flocking spray or flocking powder to the surface of the seal to insulate, absorb water, dampen vibration, and reduce friction. Most flocking is black because the seal it is attached to is also black. Flocking is found in auto windows – and in many other applications demanding weatherproofing of some sort.
Tape
Tape is a means of attaching a seal to another surface. Usually the seal is manufactured with an adhesive side affixed in place on the seal and a second adhesive side protected by a covering which is removed during a later stage of the manufacturing or assembly process.
Attachment
A seal attachment includes adhesives and mechanical fasteners. Both are meant to join a seal to another surface and each as its pro’s and con’s. Adhesive attachments (including tape) can be temporary or permanent and may work in conjunction with mechanical fasteners. Mechanical fasteners include wire carrier seals, kerf insertions, multi-durometer extrusions, and push-pin seals, one of the most common in the auto industry.