Hello, boatbuilders ... I am a General Woodworking person.
Thinking that I was applying the ultimate finish ... I applied Siekens Cetol Marine varnish to a door.
Eventually, I found out ... the hard way ... that it does not have a mildewcide.
I have accepted that I need to strip-off and re-finish ... and I need some advice regarding a effective stripper to use.

Thanks in advance for any guidance.