Removing acrylic deposits from glassware

[prdave00]

My colleagues left me with some Pyrex beakers that were used to clean parts off of our stereolithography machine. The inside of the beakers now have residue left behind after the isopropyl alcohol evaporated that is a bear to remove. Any ideas on how to clean it off easily?

The resin is EnvisionTec's Perfactory R5 material which is some variant of acrylic.

 

[patprimmer]

What happens if you heat it up to almost red heat and maybe blow some oxygen on it.

Regards
Pat
See FAQ731-376 for tips on use of eng-tips by professional engineers &

http://eng-tips.com/market.cfm

for site rules

 

[Demon3]

Acrylics convert to 100% monomer when heated so they vanish with no residue. I can't be sure in your case as we don't know the formulation and whether it's cross-linked but Pats idea is worth trying.

Chris DeArmitt PhD FRSC CChem

 

[prdave00]

Thanks Pat & Chris. I ended up just using Acetone and a little "elbow grease" to remove the residual acrylic. The answer was staring me in the face this morning in the medicine cabinet when I saw my wife's nail polish remover.