Many kinds of plastics and no part manufacturer makes his own plastic. Some is poorly formulated, generally the cheapest or sold as quality when its not.
At the Plastic suppliers recently for some Delrin, for a small part that was critical & expensive if it fails, guy puts the material on the counter. No DuPont “Delrin” stamp. Delrin price poor quality substitute. Insisted on the real thing he replaced it no change in price.
You would think the pad manufacturer would figure it out, may have tried to save a few penny's.
William
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