Quote Originally Posted by 30psi 4agte
yep that pink shit is the stuff i ave! Great stuff...... burns the lungs if you breathe it in , will eat the alloy if you leave it on tooo long !

My type of stuff

It really needs to be some sort of caustic style of solution to really have much of an effect.

Could try baking powder / draino / caustic soda / oven cleaner

Not too sure on the above lot ....but some of em may have some effect.

Or you can just go buy the pink shit. - I have a 20L drum.Im not sure if they sell it in any smaller size as it is sort of an industrial chemical.
In the US... the pink shit(I think this is what you are talking about....) is called Naval Jelly(phosphoric acid)... it is about twice as caustic as the Aluminum Jelly. A 4 oz bottle of Aluminum Jelly usually costs under $10(US) a 4 oz bottle is more than enough to do most all the aluminum surfaces you'll be working with.....