Hello I'm new here and need to ask some advice. Have acquired eight 50kg drums of Microcrystalline Cellulose from a local hoarder for free. It comes in those cardboard drums and apparently sat outside or in the weather somewhere and the drums are in bad shape but the stuff inside is in bags and dry. I've learned this is filler material for pharmaceutical binder in pill making.

Having to do with boat building, I've built a couple of kit boats and have recently started fooling around with some of my own designs. Would this stuff make a suitable epoxy filler for fillets and such?

Thanks and look forward to reading up here. Seems like a nice place