Ausmini
It is currently Mon Jul 28, 2025 6:14 am

All times are UTC + 10 hours




Post new topic Reply to topic  [ 110 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6 ... 8  Next
Author Message
 Post subject:
PostPosted: Fri May 09, 2008 6:52 am 
Offline
Slow-Po
User avatar

Joined: Fri Jul 08, 2005 8:56 pm
Posts: 9979
Come on Al, how about stumping up some special ausmini member's only prices for that evil fizzy stuff you peddle? :)

_________________
One should never skimp on the zip ties.

Image


Top
 Profile  
 
 Post subject:
PostPosted: Fri May 09, 2008 7:25 am 
Offline
1275cc
1275cc

Joined: Mon Mar 22, 2004 7:41 pm
Posts: 4319
Location: Plumpton, NSW
AEG163job wrote:
Morris 1100 wrote:
Well after 1 day there is not much to see. The vinegar is bubbling away and slowly changing from brown vinegar to rust coloured vinegar.

So we will see how it looks tomorrow.



Morris, not too late to sneak the vinegar back in mum's pantry. Quit while your'e in front, old son.

Vinegar (acetic acid) is a very weak acid. Only 1-5% ionization compared to in-organic acids (hydrochloric, sulphuric) which are 100% ionized. But these attack the metal, not just the rust, as we know, so something less potent needed.


Retail Vinegar is 4% Acetic acid. Industrial is 10%. Some eastern european cultures like concentrations on retail up to about 12%

We make it at 12%, then filter it and dilute back to 10 or 4% depending on whether its intended for retail or industrial.
KB

_________________
Image


Top
 Profile  
 
 Post subject:
PostPosted: Fri May 09, 2008 7:28 am 
Offline
1360cc
1360cc
User avatar

Joined: Mon Jul 26, 2004 7:23 am
Posts: 7339
Location: Sunny Shine Coast, Qld Australia
Now if you want strong acetic acid get 'Strong Acetic Acid BP' (Pharmaceutical standard) = 33.3% or Glacial Acetic Acid =99% pure

_________________
David L
Image

My greatest fear in life is that when I die my wife will sell my Mini and tools for the price I told her I paid for them!


Top
 Profile  
 
 Post subject:
PostPosted: Fri May 09, 2008 6:28 pm 
Offline
Causing or creating vexation

Joined: Wed Jul 21, 2004 10:32 pm
Posts: 19124
Day two and it it starting to make a difference, there are some bits of bare metal. The bolt is still stuck though.
Image

AEG163job wrote:
Morris, not too late to sneak the vinegar back in mum's pantry. Quit while your'e in front, old son.

Vinegar (acetic acid) is a very weak acid. Only 1-5% ionization compared to in-organic acids (hydrochloric, sulphuric) which are 100% ionized. But these attack the metal, not just the rust, as we know, so something less potent needed.
I know that vinegar is a weak acid, that is one of the reasons for using it. From what I have found in the past the vinegar has good penetrating properties.

I use hydrochloric acid at work to wash my truck. That is what I am going to use in part 3 of this experiment. It is great for cleaning concrete off a truck and it also removes surface rust very quickly. (to be replaced by a fresh coat of surface rust in about an hour. :shock: )


Top
 Profile  
 
 Post subject:
PostPosted: Fri May 09, 2008 6:52 pm 
Offline
1275cc
1275cc
User avatar

Joined: Mon Sep 19, 2005 4:57 pm
Posts: 3635
Location: Gulgong
Old school panel beaters use phosphoric acid and HCL on a regular basis to quickly remove rust.

Phosphoric acid works well on alloy wheels as a cleaner as well.

But in both cases its a wipe on - wait - wash off - not something you leave for a week.

Mike


Top
 Profile  
 
 Post subject:
PostPosted: Fri May 09, 2008 7:09 pm 
Offline
1360cc
1360cc

Joined: Mon Jan 16, 2006 7:59 pm
Posts: 11749
Morris 1100 wrote:
From what I have found in the past the vinegar has good penetrating properties.


If you give a girl enough red wine it has great penetrating properties. :wink:

Have you tried the vinegar with a 9v battery running across the vinegar to the metal ?


Top
 Profile  
 
 Post subject:
PostPosted: Fri May 09, 2008 7:16 pm 
Offline
1275cc
1275cc
User avatar

Joined: Mon Sep 19, 2005 4:57 pm
Posts: 3635
Location: Gulgong
Blokeinamoke wrote:
Morris 1100 wrote:
From what I have found in the past the vinegar has good penetrating properties.


If you give a girl enough red wine it has great penetrating properties. :wink:

Have you tried the vinegar with a 9v battery running across the vinegar to the metal ?


He can't - because unless the batteries are Eveready, they get tired too quickly with all that running. :lol:

I would have thought that that is a next stage - once the rusting has been dissolved away and the frozen bolt freed then electrophoretic replacement of the pitting can be done.

Mike


Top
 Profile  
 
 Post subject:
PostPosted: Fri May 09, 2008 9:03 pm 
Offline
1275cc
1275cc
User avatar

Joined: Fri Oct 01, 2004 4:07 pm
Posts: 4682
Location: sunbury victoria
Mike_Byron wrote:
Old school panel beaters use phosphoric acid and HCL on a regular basis to quickly remove rust.

Phosphoric acid works well on alloy wheels as a cleaner as well.

But in both cases its a wipe on - wait - wash off - not something you leave for a week.

Mike


used it a few times at work.. great stuff..

_________________
Potato


Top
 Profile  
 
 Post subject:
PostPosted: Fri May 09, 2008 10:14 pm 
Offline
1275cc
1275cc
User avatar

Joined: Fri Oct 20, 2006 5:03 pm
Posts: 2729
Location: Out in the shed cleaning up my own mess.
Morris 1100 wrote:
I use hydrochloric acid at work to wash my truck. That is what I am going to use in part 3 of this experiment. It is great for cleaning concrete off a truck and it also removes surface rust very quickly. (to be replaced by a fresh coat of surface rust in about an hour. :shock: )


I've found HCL can leave salts in the pores of some steels, causing rust to re-appear later. Not good :(


Top
 Profile  
 
 Post subject:
PostPosted: Sat May 10, 2008 12:19 am 
Offline
Bimmer Twinky
User avatar

Joined: Mon Sep 06, 2004 4:36 pm
Posts: 8606
Location: Brisbane
Bloke in a moke said-->

If you give a girl enough red wine it has great penetrating properties.

gotta laugh at that one,,, so true

:-)

_________________
No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.


Top
 Profile  
 
 Post subject: Ohhh Haitch
PostPosted: Sat May 10, 2008 7:43 am 
Offline
1360cc
1360cc
User avatar

Joined: Sun Apr 11, 2004 11:32 am
Posts: 12390
Location: Sthrn HiLoLands, NSW, Australia
Mike_Byron wrote:
Old school panel beaters use phosphoric acid and HCL on a regular basis to quickly remove rust.

Phosphoric acid works well on alloy wheels as a cleaner as well.

But in both cases its a wipe on - wait - wash off - not something you leave for a week.

Mike


Phosphoric acid is nasty stuff....whack some rubber gloves on and think about eye protection if you are going to be splashing the stuff about :idea:

_________________
"Show me the Mini!"


Top
 Profile  
 
 Post subject:
PostPosted: Sat May 10, 2008 8:19 pm 
Offline
Causing or creating vexation

Joined: Wed Jul 21, 2004 10:32 pm
Posts: 19124
Here is day three...
Image

Exciting stuff isn't it? :D


Top
 Profile  
 
 Post subject:
PostPosted: Sat May 10, 2008 8:23 pm 
Offline
1360cc
1360cc

Joined: Mon Jan 16, 2006 7:59 pm
Posts: 11749
Wow thats amazing :roll: :P


Top
 Profile  
 
 Post subject:
PostPosted: Sat May 10, 2008 8:25 pm 
Offline
Causing or creating vexation

Joined: Wed Jul 21, 2004 10:32 pm
Posts: 19124
It keeps me off the streets. :D


Top
 Profile  
 
 Post subject:
PostPosted: Sat May 10, 2008 8:44 pm 
Offline
the King of Bling
User avatar

Joined: Thu Jun 03, 2004 11:11 pm
Posts: 19858
Location: Baulkham Hills
I think you have to rust proof your bench

_________________
Stop Licking the Dog...I Don't Care Who Started It


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 110 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6 ... 8  Next

All times are UTC + 10 hours


Who is online

Users browsing this forum: No registered users and 87 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  

cron

© 2016 Ausmini. All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.