An old favourite wooden chopping board has just come apart at a glued seam.
I've glued it together using white PVA glue, simply because I have some and I've never heard about it being toxic. There is still a small gap on most of the seam which I want to fill in for Hygiene reasons.
What fairly inoffensive and easy to use substance might I use for this? I did think of using a nail varnish which I guess is just a quick drying cellulose paint? Any other suggestions please?