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Researchers at Oregon State University's College of Forestry have reportedly discovered a novel way to make strong and moisture-resistant sand molds using simple sugar, instead of more toxic materials, as the binding agent. OSU reports that the technology is ready for more applied research and testing and states that it is seeking investors and industrial partners to commercialize it.
Sand based molds are used in making about 70% of all metal castings.
Read more about this on Oregon States University's website.
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