Hi

I currently use this product to coat FDM 3d prints prior to finishing/painting.

https://www.smooth-on.com/product-line/xtc-3d/XTC-3D

Have you got a resin in your range that has similar properties but is more cost effective?  I think it mainly the "slump" that I'm trying to retard slightly so the resin stays on vertical surfaces whilst setting.

Ideally I'd like it clear or with minimal colour for self coloured prints.

Regards

Dave Nicholls

Fumed silica will add to the thickness of the resin although add only very small amounts (less than 1%) as it can make the resin very thixotropic if you put in too much. 

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant