Teak rail

[KEVMAR]

I just finished sanding the teak rail around my 36 albin . The finish have alot of black spots underneath. Is there anything I should do before I apply cetol ? Thanks
Kevin g
Oriental N.C.

 

[FF]

There are wood bleach products , but perhaps a slurry of Comet standing on the dark spot will lift enough of the dark?

 

[Cigatoo]

Try Barkeepers Friend. (Oxolic acid). Sold at Walmart. Do not scrub the teak with anything too hard. You don’t want to raid the grain.