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Q: Why is PA-12 in such short supply? A: Not many companies make it, and because of heavy demand from the auto and other industries, PA-12 already was in short supply before the March 31 explosion and fire at the Evonik Industries plant in western Germany. Evonik also made 70 percent of the world's supply of cyclododecatriene, or CDT, a critical building block used by other companies to make PA-12. Other suppliers already were cranking out as much as PA-12 as they could. "Not many companies produce it, and that's what's led to all this mess after the explosion," says Jana. Q: Are there any substitutes? A: Yes, but Jana knows of none as durable as PA-12. DuPont CEO Ellen Kullman, a former General Motors board member, said Thursday that her company is working with automakers to develop alternatives. Any substitute plastic would have to go through rigorous testing to make sure it would work for a specific automotive part, Jana says. Those tests could take months. Italian automaker Fiat SpA says it switched all of its parts away from PA-12 last year to PA-6,6, a similar nylon resin.
[Associated
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