Is Evapo Rust safe for cleaning keris?

satsujinken · 2nd October 2012, 06:13 PM

Quote:

Originally Posted by David

You can buy it on line Donny, but i don't know about the shipping costs...

that's exactly the problem ... 1 gallon is only 25 usd ... but the shipping cost is 78 usd to Indonesia T_T

Rick · 2nd October 2012, 06:22 PM

Coca Cola then ??

For the bike parts .....

satsujinken · 4th October 2012, 04:01 AM

Quote:

Originally Posted by Rick

Coca Cola then ??

For the bike parts .....

coca cola is same as acid, it corroded the metal

I have read that evapo rust is basically chelates compound, which bonds with Ferric compounds ... it operates in pH 6,2 - 7.1 (pretty safe), and safe to be dumped to sewer

no need gloves / glasses / etc when using it, as it is safe

it is formulated so that it is strong enough to bond with rust (Fe2O3) on the surface of the corroded parts, but not strong enough to pull Fe molecules out from the blade. Basically it converts and dissolving ONLY the rust and leave the other parts

but that's the marketing talk ... I need proof

that's why I wanted to try some

imas560 · 11th November 2013, 06:10 AM

Interesting re the Golden Circle. Approx 2-3 years ago the stuff was great for rust removal and tasted really good (especially with sprite zero). Had problems with the kids getting into my stash. But the last couple of lots I bought, maybe a year ago, was thin and not the nicest, thought I'd got some from a bad batch. Think I've still got some around somewhere.

A. G. Maisey · 11th November 2013, 11:54 AM

Yeah, this is what happens when you are bound by law to try to produce the biggest possible profit for your shareholders. This takeover by foreign companies of Australian --- and I guess businesses in other countries --- usually seems to go in more or less the same way:- they take a good company with a good product and set out to totally destroy both the product and the company. Seems like insanity to me. But what would I know?

GIO · 17th November 2013, 05:41 PM

Jean, I suppose that your Panjang keris is that of which you spoke to me last Thursday in Milano. Really a very nice piece, and my compliments for the restoration.

Jean · 17th November 2013, 08:02 PM

Quote:

Originally Posted by GIO

Jean, I suppose that your Panjang keris is that of which you spoke to me last Thursday in Milano. Really a very nice piece, and my compliments for the restoration.

Hello Gio,
Thank you. This is my eldest panjang kris blade, I did not really restore it but just cleaned it in pure vinegar (8-10 % acetic acid) for about 24 hours with 2 intermediate scrubbings; there are some small pits left but they were present before cleaning.
I attach the pics of another panjang blade before and after cleaning it in vinegar, with the same procedure and a very good result also.
By the way and contrary to diluted mineral acids (hydrochoric, sulphuric, nitric, etc), vinegar is a too weak acid for attacking the bare metal in case anybody has doubts about it.

Regards

2nd October 2012, 06:22 PM	#2
Rick Vikingsword Staff Join Date: Nov 2004 Posts: 6,336	Coca Cola then ?? For the bike parts .....

11th November 2013, 06:10 AM	#4
imas560 Member Join Date: Aug 2010 Posts: 180	Interesting re the Golden Circle. Approx 2-3 years ago the stuff was great for rust removal and tasted really good (especially with sprite zero). Had problems with the kids getting into my stash. But the last couple of lots I bought, maybe a year ago, was thin and not the nicest, thought I'd got some from a bad batch. Think I've still got some around somewhere.

11th November 2013, 11:54 AM	#5
A. G. Maisey Member Join Date: May 2006 Posts: 6,992	Yeah, this is what happens when you are bound by law to try to produce the biggest possible profit for your shareholders. This takeover by foreign companies of Australian --- and I guess businesses in other countries --- usually seems to go in more or less the same way:- they take a good company with a good product and set out to totally destroy both the product and the company. Seems like insanity to me. But what would I know?

17th November 2013, 05:41 PM	#6
GIO Member Join Date: Dec 2009 Posts: 328	Jean, I suppose that your Panjang keris is that of which you spoke to me last Thursday in Milano. Really a very nice piece, and my compliments for the restoration.