Can anybody give me a piece of advice concerning a practical method for estimation of the real surface area of a plate after sandblasting?

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Ruslan Melentiev

Attached.

See the hybrid surface roughness parameter Sdr in Table 4 and illustration on Figure 5.

Valentin Dikov

Please, excuse me for the late reply!

Many thanks for the useful information!

Maybe I have misled you with the poorly formulated question. I was looking for a simple practical solution to the problem by means of widely available equipment...

Thank you once again, wishing you success in your research efforts!