Water-proofing papier-mache...how can this be done, please?
Thanks for stopping by!
I would like to do a large (2m2) outdoor papier-mache project.
Essentially it's a large plant holder display and so would need to hold about 25lbs in weight and be able for me to water the pot plants it will hold.
These are my concerns, and I would seriously appreciate some advice if you can:
- How do I waterproof the whole thing?
I was hoping to use strong wallpaper paste and then seal it with about 3 coats of oil-based paint like eggshell.
The other worry I have is where I cut holes into the papier-mache there will then be an unsealed exposed edge where water could get in a separate the layers: I don't feel that paint would be sufficient for such thin areas/egdes...what would you do?
Again, thanks for reading me, please help if you can.