Emery Cloth Grades

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EltonFrog

Legendary Member
Does anyone here know about emery cloth grades? I can see on line that there are different grades, but the numbers and letters don't mean anything to me, I want a cloth quite fine for getting rust off of chrome.
 

Rob3rt

Man or Moose!
Location
Manchester
 
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Deleted member 23692

Guest
They are expressed as 'XX grit' - the lower the number the coarser the paper - so 40 grit is rough and 240 grit is finer. But emery will scratch chrome, as will wet n dry paper.

Best bet is to use fine wire wool (with turps as a lube), which will remove the rust and not scratch the chrome
 

Ern1e

Über Member
Hi from what I can recall the lower the number ie. p40 the more aggresive the effect ! so 1000 grit would be very fine, or you could just use wire wool or even a brillo pad ! I have used these for just the same thing you have asked about or very fine wire wool is better.Hope this helps and I think someone else may add more to this.
 
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EltonFrog

EltonFrog

Legendary Member
They are expressed as 'XX grit' - the lower the number the coarser the paper - so 40 grit is rough and 240 grit is finer. But emery will scratch chrome, as will wet n dry paper.

Best bet is to use fine wire wool (with turps as a lube), which will remove the rust and not scratch the chrome

ok, but I thought I read somewhere the whole point of emery cloth was that it didn't scratch. :scratch:
 
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EltonFrog

EltonFrog

Legendary Member
Hi from what I can recall the lower the number ie. p40 the more aggresive the effect ! so 1000 grit would be very fine, or you could just use wire wool or even a brillo pad ! I have used these for just the same thing you have asked about or very fine wire wool is better.Hope this helps and I think someone else may add more to this.

Yeah I have been using wire wool, to good effect, I thought for some reason that emery paper, might give me a better finish. do you think that is not the case.?

Trying to get this nicer
Dawes Crank1 (1) (640x480).jpg

Dawes Crank 2 (640x480).jpg
 
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sreten

Well-Known Member
Location
Brighton, UK
Hi,

You want metal polish, like Duraglit, rust is very soft, chrome isn't hard,
you don't need emery paper or wire wool. Your best best after cleaning
is then rubbing some zinc based primer into the rust pits, and lacquer.

Emery scratches, when its fine enough you can't see it. Same with wirewool.

rgds, sreten.

Duraglit is something like Brasso soaked Rockwool / Fibreglass.
 
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EltonFrog

EltonFrog

Legendary Member
Hi,

You want metal polish, like Duraglit, rust is very soft, chrome isn't hard,
you don't need emery paper or wire wool. Your best best after cleaning
is then rubbing some zinc based primer into the rust pits, and lacquer.

Emery scratches, when its fine enough you can't see it. Same with wirewool.

rgds, sreten.

Duraglit is something like Brasso soaked Rockwool.

Ta, I haven't seen Duraglit for years! I'll see if I can get some online.
 
D

Deleted member 23692

Guest
Chrome is harder than steel - so wire wool won't scratch it when used correctly
The abrasive grit used on emery /wet 'n' dry is harder than chrome so it will scratch it

Brasso (the new name for Duraglit) wadding doesn't really do much on ferrous metals as it's too mild an abrasive, but if you want to try a polish then autosol would be your best bet. Do not confuse with anusol!!
 
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EltonFrog

EltonFrog

Legendary Member
Chrome is harder than steel - so wire wool won't scratch it when used correctly
The abrasive grit used on emery /wet 'n' dry is harder than chrome so it will scratch it

Brasso (the new name for Duraglit) wadding doesn't really do much on ferrous metals as it's too mild an abrasive, but if you want to try a polish then autosol would be your best bet. Do not confuse with anusol!!

I used Autosol, on the chrome, see pics above, I think I was expecting some miracle product, but it never troubled my whelm.
 

sreten

Well-Known Member
Location
Brighton, UK
Chrome is harder than steel - so wire wool won't scratch it when used correctly
The abrasive grit used on emery /wet 'n' dry is harder than chrome so it will scratch it

Brasso (the new name for Duraglit) wadding doesn't really do much on ferrous metals as
it's too mild an abrasive, but if you want to try a polish then autosol would be your best bet.
Do not confuse with anusol!!

Hi,

Chrome harder than steel ? In what universe ? The simple point is to remove
the rust which is very soft and polish the chrome which Duraglit did in my
youth and if it is now called Brasso wadding it still will. Chrome is soft.

Emery and steel wool are a very bad idea on any steel chromed parts.
Maintenance wise you'll soon see the copper, which is never good.

rgds, sreten.

Most chrome plating over steel has very thin nickel and copper.
 
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Deleted member 23692

Guest
This universe

Silicon carbide (carborundum) - Brinell hardness 2800 MPa
Chromium - Brinell hardness 1120 MPa
Carbon Steel - Brinell hardness 462 MPa
 
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screenman

Squire
The idea of emery is to remove material which it will do on most surfaces, very fine wire wool (like emery there are different grades) will maybe help but can still leave marks behind lubrication helps.

I often use 4000 grade on vehicle paint which still needs polishing back up.
 
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