Author Topic: Molasses dipping page 3  (Read 7122 times)

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Offline pokey

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Re: Molasses dipping page 3
« Reply #15 on: September 18, 2007, 11:13:13 am »
It will work Tony but its hell slow  and.. it will eat away at the aluminium and the brass if any is present , not just the oxidisation. Much better safer  and faster ways  to clean alloy.

lms6201

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Re: Molasses dipping page 3
« Reply #16 on: September 18, 2007, 05:23:23 pm »
they make better use of molasses here , but the tanks are of steel and i know they are very old ,pre war even

Offline Noel

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Re: Molasses dipping page 3
« Reply #17 on: September 18, 2007, 09:21:39 pm »
Hi,
I have heard that It does a good job of cleaning up the metal but
the cleaned metal then needs to be treated straight away otherwise it will start to oxidise
again very quickly, this make me think that a steel tank may corrode badly at the top
at the solution air interface ;D
No First hand knowledge of this yet as I too am only in the investigative stages
Cheers
Noel

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Re: Molasses dipping page 3
« Reply #18 on: October 14, 2007, 10:42:25 pm »
I had my solution in my tank around 2x weeks, but had to decant it to get the tank welded, rinsed only with water.

The shop welded it, must have water/pressure tested, but after a couple of days since, its either a scum layer over all inside, but whats the best way of getting the residue out?

I had to put the solution back in, as I wanted to clean it again after welding, but only another week, as I want to use the bike next weekend.  I think it may not be long enough for the solution to work, whats the time length recommended?

My tip is to use warm to hot water to mix the molasses in, as its hell sticky consistency raw.

Offline YZ250H

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Re: Molasses dipping page 3
« Reply #19 on: October 15, 2007, 11:30:01 am »
Some great tips here.  Be interesting to see how you guys go with it.  Be sure to let us know.
The best use I've seen of Molasses is in Bundaberg in Queensland.  They sell the by-product in lovely square bottles  ;D ;D
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Re: Molasses dipping page 3
« Reply #20 on: October 20, 2007, 11:04:06 pm »
My update is that I either didnt leave it in long enough (3 weeks) or mixed it correct (as per mix 1 to 9).
I found the tank only mildly cleaned, took more effort to get the molasses residue out, just some hot water initially, then used some Phosphoric (the base in rust converter) at 30%, it did a better clean out, but feeling around with my finger I still could feel and see a rusty stain.

Once I get the tank dents out etc, I will give it the POR15 tank product a go, I know someone who swears by it.