Anyone have experience with Koinsolv aka Dissolve?

GRANDAM

I bought some Koinsolv and I am considering using it as a preventative treatment on .999 silver bullion.



We all know the spotting promblems so common with .999 silver such as Eagles, Maple Leafs and just generic .999 bullion.



Directions say just use a 2 stage dip process,,,,, dip in 1st cup then 2nd cup and wave back and forth untill air dried.



Anyone know it this stuff works and will it help prevent Milk Spotting?



Regular Dip will cause severe spotting of its own it not rinsed properly and it seems near impossible to rinse it all off and spotting normally occurs years later after the dip. I gave up on using dip to prevent spots years ago.



Just wondering if Koinsolv is worth the effort?

BAJJERFAN

If the spots are silver chloride, I can't see propyl bromide being an effective remover of same. Looks like a good solvent to avoid IMO.

CaptHenway

I used to use Dissolve, which was trichlorotriflouroethane, but it got taken off the market when they took a lot of products that were hurting the ozone layer off the market.



I am not familiar with this new product, but I know the guy that runs the company. He is very conscientious, and I am sure that it is a good coin solvent.



That said, I doubt that either would remove milk spotting. I never found any product that would.



TD

Sonorandesertrat

Propyl bromide is commonly used as a degreasing agent, and has many other industrial uses. Use this carefully, however. It is moderately toxic, and vapors can cause neurological damage. Make sure any work with this is done in a well-ventilated room.

I would use acetone instead.

GRANDAM

I want to use it to prevent spotting and was wondering if it would be more effective than acetone?

Sonorandesertrat

Originally posted by: GRANDAM
I want to use it to prevent spotting and was wondering if it would be more effective than acetone?

I don't know if this will fix that problem. I have no experience with spotting on pristine silver moderns.

krueger

I believe tricloro-- is toxic too.
I know folks who had developed pituitary and brain tumors from having hands
In these kind of chemicals , also breathing the vapors.
Be very careful, this stuff can possibly get in your blood stream use the blue rubber gloves if you must.
Krueger

ricko

I used an acetone rinse on new ASE's when received.... none have ever developed milkspots...

now, maybe I am just lucky... but that was my process and the results are great. Cheers, RickO

adriana

What is an acetone rinse? Is it a dip and water wash? It wasn't too many years ago, PCGS offered $50,000 for anyone who could find the solution?