GREAT RUST REMOVAL process.

Bill M · 10th September 2006, 12:22 PM

i have heard that pineapple juice is a good rust remover and certainly seems in everyday use in Java for that purpose.

How do you prepare it? Do you put pineapple slices in a blender? Buy ready made pienapple juice?

drdavid · 10th September 2006, 12:29 PM

Hi Bill, I believe this was just pineapple juice out of a can.
drd

Bill M · 10th September 2006, 12:43 PM

Quote:

Originally Posted by drdavid

Hi Bill, I believe this was just pineapple juice out of a can.
drd

Will give it a try. Guess the can is rust free.

tom hyle · 11th September 2006, 05:47 PM

Is that chisel bevelled? It looks more like a jimpul? I'm currently all about the vinegar.

Bill M · 11th September 2006, 05:55 PM

Quote:

Originally Posted by tom hyle

Is that chisel bevelled? It looks more like a jimpul? I'm currently all about the vinegar.

Think it is a jimpul. What is the difference in a jimpul and a langgai?

tom hyle · 18th September 2006, 08:50 PM

what's a langgai?

Ian · 19th September 2006, 12:52 AM

Quote:

Originally Posted by tom hyle

what's a langgai?

See here Tom.
http://www.vikingsword.com/vb/showthread.php?t=2060

katana · 9th February 2007, 08:56 PM

Quote:

Originally Posted by Bill Marsh

Will give it a try. Guess the can is rust free.

Hi Bill,
most tins of pineapples have syrup (water/sugar) as its 'juice'.....so its best to check the ingredients. Perhaps a better suggestion could be pure pineapple juice in a carton.

Great thread Guys......

Daniel · 10th February 2007, 12:33 AM

I haven't cleaned a lot of blades, but as an antique tool collector, I've had to deal with a lot of rust on iron planes, steel chisels, etc.
In the past, when confronted with heavy rust on intricate surfaces, a soak for several days in a solution of half and half vinegar and water will dissolve the rust and allow removal with a light pass of steel wool. Pineapple juice probably works in much the same way. While I have heard of it, I have not used the electric current method, but I suspect the results are rather similar to the acid method. The downside to the vinegar bath is that it not only removes surface rust, but it also removes the pockets of rust inside the metal. So while you clean away all the rust, you end up with ugly surface pitting. Also, the surface finish has a "pickled" look. To make the piece presentable, you have to re-patinate the metal.
If the item is important and warrants the work, I agree with the hand-labor method. 2/0 steel wool and large amounts of WD-40 plus a lot of elbow grease removes the surface rust, polishes the surface of the metal, but leaves a nice warm patina, and does not expose the pitting. After this treatment, a little touch-up of the edges where the patina has been worn through is often helpful. I've found that a quick and easy way to do touch-up patination is with a dilute solution of gunsmith blueing and browning chemicals. You can pick up Some Birchwood Casey touch-up blueing and browning solution at most gun stores. I dilute them with water, so they work much more slowly. I warm up the part in the oven and lightly wipe the surface with the diluted browning solution, followed by a pass with the diluted bluing solution. It cuts the brightness of the bare spots. After it dries, you can polish with 4/0 steel wool, and protect the finish with a bit of mineral oil. The result looks attractive and natural. And it's easy to control the appearance once you've had a little practice.
DD

10th September 2006, 12:22 PM	#1
Bill M Member Join Date: Mar 2005 Location: USA Georgia Posts: 1,599	i have heard that pineapple juice is a good rust remover and certainly seems in everyday use in Java for that purpose. How do you prepare it? Do you put pineapple slices in a blender? Buy ready made pienapple juice?

10th September 2006, 12:29 PM	#2
drdavid Member Join Date: Aug 2005 Location: Australia Posts: 372	Hi Bill, I believe this was just pineapple juice out of a can. drd

11th September 2006, 05:47 PM	#4
tom hyle Member Join Date: Dec 2004 Location: Houston, TX, USA Posts: 1,254	Is that chisel bevelled? It looks more like a jimpul? I'm currently all about the vinegar.

18th September 2006, 08:50 PM	#6
tom hyle Member Join Date: Dec 2004 Location: Houston, TX, USA Posts: 1,254	what's a langgai?

10th February 2007, 12:33 AM	#9
Daniel Member Join Date: Jan 2007 Location: California Posts: 16	I haven't cleaned a lot of blades, but as an antique tool collector, I've had to deal with a lot of rust on iron planes, steel chisels, etc. In the past, when confronted with heavy rust on intricate surfaces, a soak for several days in a solution of half and half vinegar and water will dissolve the rust and allow removal with a light pass of steel wool. Pineapple juice probably works in much the same way. While I have heard of it, I have not used the electric current method, but I suspect the results are rather similar to the acid method. The downside to the vinegar bath is that it not only removes surface rust, but it also removes the pockets of rust inside the metal. So while you clean away all the rust, you end up with ugly surface pitting. Also, the surface finish has a "pickled" look. To make the piece presentable, you have to re-patinate the metal. If the item is important and warrants the work, I agree with the hand-labor method. 2/0 steel wool and large amounts of WD-40 plus a lot of elbow grease removes the surface rust, polishes the surface of the metal, but leaves a nice warm patina, and does not expose the pitting. After this treatment, a little touch-up of the edges where the patina has been worn through is often helpful. I've found that a quick and easy way to do touch-up patination is with a dilute solution of gunsmith blueing and browning chemicals. You can pick up Some Birchwood Casey touch-up blueing and browning solution at most gun stores. I dilute them with water, so they work much more slowly. I warm up the part in the oven and lightly wipe the surface with the diluted browning solution, followed by a pass with the diluted bluing solution. It cuts the brightness of the bare spots. After it dries, you can polish with 4/0 steel wool, and protect the finish with a bit of mineral oil. The result looks attractive and natural. And it's easy to control the appearance once you've had a little practice. DD