possibly the silliest question ever asked about etching

[lampworklover]

....if you use nail varnish to mask the bits you don't want etched, does it have to be clear? Not sure if coloured polish might leave some sort of residue behind?

Also, did somebody say you can use PVA glue as an alternative?

[Trudi]

It can be any colour you like - intact a coloured one is better as you can see where it's been applied!

[beadysam]

I use PVA and leave it overnight to dry completely - peels off easily afterwards

[princess pink]

I use coloured ones always but avoid the shimmery coloured ones as they can sometimes leave stuff behind. The nailpolish should just peel right off! X

[Kalorlo]

I used lime greeeeen 

[Barbara]

Windowcolor also works!!!