Chatoyance vs sanding grit

[chatometry]

Hi everyone.
Within our test campaign about wood chatoyance we ran a comparative test on two samples, one sanded to #240 and then shellac coated, and the other sanded to #10'000 and then shellac coated.
This insanely high grit resulted in significantly higher chatoyance. The same happened on 5 wood species.
Does this match your experience?
Paolo

PS
more data here: Ultra-fine sanding – PZC Chatometry (https://www.chatometry.com/ultra-fine-sanding/)

[Swifty]

Does this match your experience?
Paolo

PS
more data here: Ultra-fine sanding – PZC Chatometry (https://www.chatometry.com/ultra-fine-sanding/)


Yes absolutely. I sand to 1200 grit prior to applying a sanding sealer, then grain fill and apply shellac using a pad to bring out the chatoyance ( ie a French polish). Thanks for sharing your results!

[chatometry]

I was surprised indeed because also going ABOVE #1500 had a great impact.

What do you do between sanding and sealing? Do you remove dust from pores with some sort of brush?