Require help in sourcing for microparticles

[Josiah.teo]

Hi Im working on an experiment to test the validity of a specific equipment. For that, I need polyester microparticles, which are irregularly shaped, in a range of 1-300 um, with about 8 different sample sizes. Also I don't need that much of it, roughly 2grams per sample size. Anyone knows any sites that is able to help produce these microparticles or a vendor that deals with this? Any help is appreciated & thx for reading :D

BTW if any mods out there feel free tellme if this is in the wrong place to post this. I couldn't find other places which I can post this in.