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Best Material For Watch Strap, Silicone, Pur/au, Tpe?

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I'm interested in creating a watchband, similar to the 'O clock' watches. Does anyone here have experience with such products?

I have several issues I am not sure about:


- I was initially thinking of Silicon but isn't that more expensive to produce than a TPE or polyurethane rubber?


- How do you think the O clock watch is made? The parting line is on the side, as you can see in the photo. Would it be a mold with 1 static part and 3 movable parts?


- Does TPE react to skin oils or cause irritation because of additives? Is it ok for repeated stretching? To what extent are undercuts in the mold possible?


- We are now mostly interested in polyurethane rubber (AU) or Silicone, what are specific advantages/disadvantages of those in your experience?


Any other suggestions or tips are also welcome!









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