CAMX

ISS5 2017

CAMX Show Directory & Program The Composites and Advanced Materials Expo

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THURSDAY, DECEMBER 14, 2017 / ORLANDO, FLORIDA CAM X 2017 4 SHOWDAILY Lightweight Material Provides an RF-Transparent Protective Layer for Radome and Antenna Applications By Jeff Sloan, Editor-in-Chief CompositesWorld General Plastics Mfg. Co. (Tacoma, Washington) is showcasing its new LAST- A-FOAM RF-2200, a lightweight material that provides an RF-transparent protective layer for radome and antenna applications. RF-2200 is a high-performing closed-cell polyurethane foam used in applications where low dielectric constant and low heat loss are necessary. is foam series, initially offered in 3-, 4- and 6-pcf sheets or blocks, may be provided in custom densities to satisfy specific dielectric performance requirements. Extremely large blocks are also available, enabling customers to machine complex shapes without the need to bond sheets together. ese materials can be used in composites applications that require processing temperatures up to 350°F/177°C. In addition to its extended thermal processing capabilities, its fine cell structure and high dimensional stability are said to make it ideal for andwich panels and complex shapes made to tight tolerances. LAST-A-FOAM RF-2200 is a closed-cell polyurethane, and intrinsically prevents water uptake. Even if exposed to rain, snow, sea spray or other moisture, the company says its dielectric performance will remain undiminished. General Plastics also is featuring its premier line of dimensionally stable core materials and ready-to-use tooling board, which satisfy demanding physical properties, flammability performance and processing requirements. LAST-A- FOAM FR-3800 FST poly- urethane foam core satisfies fire, smoke and toxicity (FST) requirements and Ohio State University (OSU) heat release standards. Finally, LAST-A-FOAM FR-4700 is the company's ready-to-use high-tempera- ture tooling board. ese are dimensionally stable, non-abrasive and can be with machined with standard high- speed steel cutting tools. In addition, it withstands peak temperatures up to 400°F/204°C, making it suitable for high-temperature curing prepregs, vacuum forming and prototype machining. Booth R46. This FUSION underwater robot was designed with General Plastics LAST-A-FOAM. Check it out in Booth R46. High-Temp Tooling Board Offers Excellent Machinability By Jeff Sloan, Editor-in-Chief CompositesWorld DUNA-USA Inc. (Baytown, Texas) is debuting its BLACK CORINTHO HT 800 high-temperature tooling board, which offers low coefficient of thermal expansion (CTE) at temperatures up to 400°F, coupled with high thermal conductivity for reducing oven and autoclave cycle times. DUNA-USA also says that BLACK CORINTHO HT 800 offers excellent machinability and easier handling than traditional metal tooling, making it a cost-effective alterna- tive for low-volume prototypes and composite layup tools. DUNA-USA also manufactures the CORAFOAM line of polyure- thane tooling boards, with densities from 4-31 lb/ft 3 . Known for its ultrasmooth surface and ability to produce chips instead of dust, CORAFOAM applications include Visit Booth F67 to chat about potential applications for BLACK CORINTHO. 3A Composites/Baltek Inc. (High Point, North Carolina), in Booth L52, is featuring the carbon fiber side panel for the Audi R8 GT sports car. The panel, manufactured by SGL Carbon SE (Wiesbaden, Germany; formerly joint venture BENTELER-SGL) features core material supplied by 3A Composites/Baltek to help keep material costs down but still allow the part to meet strength requirements. The panel also features Soric TF (from Lantor, Veenendall, The Netherlands), a resin flow medium for infusion and prepreg processes that provides high-quality print blocking. composite layup tooling, vacuum forming, prototyping, and CAD verification tools.

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