Marking Santoprene with a Fiber Laser?

[Jeff Bromagem]

Hello,
I am interested in knowing if anyone has marked on santoprene with a fiber laser and what the results are.
I have heard that it can be done, and that it leaves a white mark (maybe on a black part).
I am curious to know how well the "white" mark will hold up to handling and outdoor exposure.
Thanks for any replies.
Jeff

[Kev Williams]

Santoprene TPV is a dynamically vulcanized alloy consisting mostly of fully cured EPDM rubber particles encapsulated in a polypropylene (PP) matrix

EPDM rubber is very similar in appearance and feel to basic tire innertubes, and polyprop is what plastic storage containers are made of-- someone figured out how to marry the two and call it Santoprene... never heard of it, seems a bit soft-ish for fiber lasering but who knows, I find out something new every day about these things!

(sorry I'm not much help!) ;)

[John Lifer]

You SHOULD be able to color change the colorant. Prior company used to buy and injection mold and the pellets were an off white and we added brown colorant.