Flattening Paste for Oil Based Varnishes

[Tom M King]

I think before I would try adding a liquid, I'd try dry Sliica powder like that really fine stuff that West Systems sells for thickening epoxy. It used to just be silica used for the different sheens, but I have no idea what they're using these days. I have no idea if this will work or not, but have used that silica thickener for decades. It's so fine that I don't even open the top without breathing protection. Maybe you have some of that in your shop.

[John TenEyck]

I'm pretty sure the stuff in the can is a thick paste, Tom. That keeps it from separating in the can, and also causes little change in viscosity to the varnish it's added too.

John