Oxalic Acid IS wood bleach.

wrote in message
...
I dont know about proportions, but I see no reason it should be bad if
it was sealed for 25 years.

You might be able to google some info on the web.

I'm curious, is the paddle wood? Does this acid remove dark spots and
why? I'd think bleach would do that too. Just a guess !!!

Mark


On Tue, 30 Aug 2005 02:19:39 GMT, Dwight News
wrote:

I am refinishing a canoe paddle and would like to use oxalic acid on the
dark spots.

1. Can I still use the acid I have had for 25 years?

2. What proportion should I mix with water?

Many thanks.

Dwight Gibb