So, what's naphtha?

[mjg]

I highly recommend using Gum Terpentine. A naturally derived product from trees.
The other products mentioned are all full of nasties....

Thanks DB, I'll look into that one. Is that going to be OK to wipe down the primer to remove fingerprints, but not remove the primer?

Using a product that isn't going to send me to an earlier grave would be preferable.