WooD Work Help
Im working on a wooden boom of a 18 century sail, boat and have to sand it back to the bare wood. The problem is that ive taken off all of the varnish but there are still black marks in the wood, i've sanded them by hand and machine and also used paint stripper but i cant get rid off them. Just wondering if anyone out there has any tips on how to get rid of them.....
Thanks in advance