589 Re-extrudable Butyl Sealant Tape

Description

589 is a sealant compound designed for use in window and door manufacturing. Due to its crosslinked butyl memory, it will pull back to size if stretched during processing. 589 is soft, resilient, pliable and easily worked by hand; yet adheres instantly to most commercial surfaces including PVC, polyethylene, polyester, glass, aluminum and wood. Because of its excellent adhesion to most materials, high resistance to chemical attack, resiliency, creep resistance and clean working properties, 589 may be used in almost any sealing application including:

• In window manufacturing where a re-extrudable sealant is desired for extruding to size or robotic sealant injection is needed in automated sealant operations.
• Window and door back bedding applications where cutting and removal of excess material is important.
• Sealing windows, panels and mullions in curtain wall and commercial building construction.
• Sealing of shower doors and joints between metal frame and tile walls.
• Wherever a freeze thaw material is required in refrigeration applications.
• Sealing metal lap joints.

589 is formulated to yield 100% cohesive failure in both wet and dry conditions. It is chemically inert, non-corrosive to paint, metals and plastic. It will not swell rubber. 589 will not flow, sag or pump from joint due to thermal expansion and contraction.

589.12 is available in rope form on spools for re-extruding to size on manufacturing lines. Both 589.12 and 589.2 are available in convenient, ready-to-use tape or bead form in rolls or cut-to-length flat packs. 589.12 and 589.2 are also available as die-cut parts made to customer specification.

Application

Surfaces to which 589.12 is to be applied need not be completely clean. In most instances, the aggressive adhesion of 589.12 will accumulate over time. Any excess squeeze-out occurring during processing can easily be cut-off with minimum elongation or stretching. Customer testing is recommended to ensure the suitability for each application. Sealant squeeze out is a major concern when large lites are used.

Lites greater than 100 united inches (length in inches plus width) require a continuous shim or rod in the center of the tape. The shim serves as a spacer to keep the glass from contacting the rabbit during periods of deflection. The rabbit surface must be serrated or other effective measures found, to retain the shim during thermal expansion and contraction.

Regulations & Specifications

FDA Regulation

Meets U.S. Food and Drug Administration (FDA) regulation 21 CFR 175.105 – Indirect food additives: Adhesives and components of coatings. For substances that may come into contact with food as part of packaging or processing equipment, but are not intended to be added directly to food.