I watched this just because i was bored, but then I thought I could do that (albeit on a smaller scale), but then at 6:15 minutes he coats it with something before finishing of with mineral spirits. What do you think it is? i really like the final colour and look.
https://www.youtube.com/watch?v=3xxy-zg ... a%20Studio
https://www.youtube.com/watch?v=3xxy-zg ... a%20Studio