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Good to know, I was looking at medium-sized containers, but the smallest ones are quite a bit cheaper.

For any Dutch people who are looking for it as well, I found some here: puimsteenpoeder and...

Thanks, I was able to find both powders and wax!

Do you use the pumice and rottenstone as bricks or in a paste or so? Thanks for the info, I'll have to try this as well, if I can find renaissance wax in the Netherlands.