Stampmaker (Photopolymer) - Suitable for letterpress?

I have a Teresa Collins Photocentric Stampmaker (machine). I’d like to find out if anyone knows if these photopolymer stamps are suitable for letterpress printing using a Heidelberg Platen (12” x 18”).

Your assistance is appreciated - thanks.

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if you use a soft rubber like rubber stamp rubber you can’t get a deep impression, I have printed with regular rubber stamps, they do quite well.

There was a time before the intro of photopolymer when we used a lot of rubber stereos ,the rubber was a wee bit harder than the rubber used on a hand stamp , that said you can use soft rubber on the press but it is purely reproduction and as basic as it gets but the results are readable . There is not a lot that is “pretty ” about it ,just functional .