Two-part, dimensionally stable, high-temp tooling material

Soul Composites is launching into the composites market gūrū, a two-part, ceramic-based tooling material designed for fabrication of highly dimensionally stable molds in less than 24 hours.

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Soul Composites (Fort Collins, CO, US) is launching into the composites market gūrū, a two-part, ceramic-based tooling material designed for fabrication of highly dimensionally stable molds in less than 24 hours. Best suited for fabrication of prototype tooling, light production molds, plugs and trim fixtures, gūrū can be poured, brushed or splashed onto a surface and then worked by hand or brush to smooth and even out the tooling material. After cure, it can machined to a thickness of 0.5 or 0.75 inch, depending on application requirements. It offers a CTE of 6x10-6 in/in/°F and working temperatures up to 450°F at 150 psi. Soul Composites says gūrū can be used in an autoclave, oven or in some closed mold processes. It has a working life of 30-45 minutes (which can be adjusted with accelerants and retardants), cures at room temperature in 24 hours and has a demold time of 12 hours. The hardness of gūrū is 89.9 Shore D; compressive strength after post-cure is 6,400 psi. Soul Composites has produced a video with CTO Eric Strauss demonstrating the use of gūrū:

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