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A high-temperature polyurethane tooling board

News International-French

4 Nov 2015

Duna USA unveils Blue Corintho HT, a polyurethane board designed for high-temperature tooling applications such as prototyping, prepreg composite layup tooling.

Blue Corintho HT features a high glass transition temperature of 509°F, and a low thermal conductivity that provide a stable platform for producing accurate master models and layup tools.

“In most cases, its low thermal-conductivity and high Tg enable the prepreg to cure before the board even comes close to its maximum temperature capability, meaning higher part-accuracy and less movement.” states Andrea Benedetti, CEO of Duna-USA.

Duna-USA commissioned well-known aerospace think tank Stealth Composites to conduct multiple prepreg composite layup tests with the Blue Corintho HT as a master mold.

“We produced accurate carbon fiber parts at autoclave temperatures of 250°F and 350°F,” said John Dice, President of Stealth Composites in Philadelphia, PA.

In addition to its thermal capabilities, the product is lightweight, faster to machine, and easier to handle than traditional metal tooling, making it an affordable alternative for low-volume prototypes or composite layup tools.

Blur Corintho HT is manufactured by the Duna Group, a group of companies known for manufacturing high-performance polyurethanes and epoxy resins. Designed specifically for aerospace and composites companies desiring a high-temperature, polyurethane foam, the product delivers thermal and machining qualities for businesses interested in utilizing a cost-effective master mold material. 

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