I am wondering Marvin, what do you use for archival purposes for your paintings if its not Dammar Varnish? Or what do you seal your paintings with?

I use Gamvar by Gamblin. I add 1 1/2 tsp of their beeswax medium to the varnish. I heat the beeswax in a double boiler and add the varnish mix to it. Hope this helps.

Thanks Marvin for the tip! Do you add this 6 months after the painting is done or a year or right away?

Somewhere between the two depending on the specific painting and circumstances. Ideally a year is better.

Perfect! Thank you Marvin