decoupage coasters

[americnjewl.livejournal.com]

I want to decoupage (sp?) coasters and then waterproof them. So how can I waterproof them? I have Krylon Crystal Clear Acrylic protective clear coating. It says that its fine on ceramics, painted surfaces, etc...but is there anything that might be better?

Also, if you're planning on doing this don't forget to put felt or cork on the bottom so you wont scratch the tables!