Release film, pressure-sensitive tape and tooling epoxy

Airtech International has recently introduced several new products.

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Airtech International (Huntington Beach, Calif.) has recently introduced several new products. First is Wrightlon 3700, a release film (see photo) that’s designed for low-cost applications and has elongation up to 550 percent with a tensile strength of 7,000 psi/48.26 MPa. It will release from epoxy, polyester and vinyl ester resin systems. It’s also available in P16 perforation style for infusion applications. Second is Teflease MG2E Yellow, an extruded polytetrafluoroethylene (PTFE) film coated with silicone-adhesive, pressure-sensitive tape. It will release from most resin systems and is designed for use on tooling blocks and any other application in which high elongation and release is necessary. It reportedly conforms to critical contours and mold surfaces while offering multiple releases. A third, Toolfusion3, is a two-part, low-viscosity epoxy infusion resin formulated to produce prepreg-quality composite molds. It has a low initial cure temperature of 49°C/120°F and can be postcured to achieve a high glass-transition temperature of 218°C/424°F. The material works in resin transfer molding (RTM) and vacuum-assisted RTM (VARTM) processes, including single- and double-bag arrangements. 

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