Airtech International (Huntington Beach, Calif.) introduced two extruded fluoropolymer films. The first, Wrightlease 2R, is coated with a rubber-based pressure-sensitive adhesive. Its light-green color is visible on most substrates. Benefits include multiple releases from all common resin systems; good adhesion to metals, composites, tooling blocks and rubber tooling; and high elongation and strength to ensure coverage of complex contoured surfaces. The second, Toolwright 3, is coated with a silicone pressure-sensitive adhesive and is thinner and, therefore, more easily applied over complex contours than Toolwright 5. Toolwright 3 offers not only high elongation and strength but high-temperature resistance and easy cleanup after removal. Benefits include extended tool life, tear resistance, fast application, and improved part surface quality.
Also on offer: Airseal 2 sealant tape, reformulated to improve tack, feel, and cleanup and to extend its shelf life. Designed for room- and medium-high-temperature applications, it also can be used in vacuum-bag applications that process at higher temperatures. Airseal 2 Tacky is a softer version, with better tack in colder environments.
Also reformulated, Airpad HTX reportedly performs better than competing rubber caul-sheet materials. Benefits include low shrinkage, dimensional stability, good bonding to reinforcing layers and surfacing release films, aggressive self-bonding for easier repairs, high Shore hardness for better pressure intensification, and good solvent resistance.
Lastly, the company’s Airflex uncured silicone rubber has been formulated for use as a pressure intensifier on complex shapes during vacuum bagging. It also can be used to protect vacuum bags from puncture due to bolt heads.
Editor PickShape Machining launches ShapeTex preforming
Under the ShapeTex brand, Shape offers a capability to manufacture highly efficient, structurally optimized preforms with minimum waste to suit a wide variety of components across a range of industries.