Jump to content
  • The above Banner is a Sponsored Banner.

    Upgrade to Premium Membership to remove this Banner & All Google Ads. For full list of Premium Member benefits Click HERE.

  • Join The Silver Forum

    The Silver Forum is one of the largest and best loved silver and gold precious metals forums in the world, established since 2014. Join today for FREE! Browse the sponsor's topics (hidden to guests) for special deals and offers, check out the bargains in the members trade section and join in with our community reacting and commenting on topic posts. If you have any questions whatsoever about precious metals collecting and investing please join and start a topic and we will be here to help with our knowledge :) happy stacking/collecting. 21,000+ forum members and 1 million+ forum posts. For the latest up to date stats please see the stats in the right sidebar when browsing from desktop. Sign up for FREE to view the forum with reduced ads. 

Metalor 1kg Blackening


SlowFrog

Recommended Posts

Hi!

I purchased a couple of silver Metalor 1kg bars from Atkinson's several years ago. Had them wrapped in their original plastic sandwich bags (lol, that's what they came in) all that time and I took them out of a dry/safe place to check them a few days ago and noticed 1/4 of the bars is now tarnished and turning black. I know this is normal for silver but was wondering if you would clean them or just leave as is? If you would clean them, what would you use and how would you store to prevent it happening again?

Cheers! :)

Link to comment
Share on other sites

27 minutes ago, SlowFrog said:

Hi!

I purchased a couple of silver Metalor 1kg bars from Atkinson's several years ago. Had them wrapped in their original plastic sandwich bags (lol, that's what they came in) all that time and I took them out of a dry/safe place to check them a few days ago and noticed 1/4 of the bars is now tarnished and turning black. I know this is normal for silver but was wondering if you would clean them or just leave as is? If you would clean them, what would you use and how would you store to prevent it happening again?

Cheers! :)

 

Screenshot_20211130-153228_YouTube.jpg

I like to buy the pre-dip dip

Link to comment
Share on other sites

28 minutes ago, SlowFrog said:

Hi!

I purchased a couple of silver Metalor 1kg bars from Atkinson's several years ago. Had them wrapped in their original plastic sandwich bags (lol, that's what they came in) all that time and I took them out of a dry/safe place to check them a few days ago and noticed 1/4 of the bars is now tarnished and turning black. I know this is normal for silver but was wondering if you would clean them or just leave as is? If you would clean them, what would you use and how would you store to prevent it happening again?

Cheers! :)

Basically baking soda some foil and hot water.....in my opinion clean them if they annoy you but please never use this method on Numismatics coins or bars ( big no no)

Be advised it will remove the smallest amount of metal too ( unnoticeable on a 1kg bar though)

I like to buy the pre-dip dip

Link to comment
Share on other sites

1 minute ago, Liam84 said:

Are you sure? I didn't think the reaction affected the silver itself, more that the exothermic reaction agitates material that has clung to the surface? 

Im inclined to agree with you ,but I was force fed that info by a ( self proclaimed scientist on another forum) 😅😅

Thought it was best to include ( just incase)

What I can say is I've tried the above on a silver bar and it works plus there's no discernible difference to weight afterwards. 

I like to buy the pre-dip dip

Link to comment
Share on other sites

4 hours ago, SlowFrog said:

Hi!

I purchased a couple of silver Metalor 1kg bars from Atkinson's several years ago. Had them wrapped in their original plastic sandwich bags (lol, that's what they came in) all that time and I took them out of a dry/safe place to check them a few days ago and noticed 1/4 of the bars is now tarnished and turning black. I know this is normal for silver but was wondering if you would clean them or just leave as is? If you would clean them, what would you use and how would you store to prevent it happening again?

Cheers! :)

It is a well known fact that Atkinsons buy all Metalor's rejects.

I am only joking!

Please don't anyone selectively quote me. 😎

On a serious note, this happens with silver, and it is best just to accept it, IMO.

If you could ensure your storage was competely airtight, it should not happen.

The electrolytic process described is well attested, so should be OK if you really dislike the tarnish / toning.

I suspect that when the silver sulphide gets removed, some slight silver loss occurs, but have never got round to trying to check.

Repeated tarnish removal adversely affects the surface of the item, which is another good reason to avoid it.

If anyone has any Goddard's Silver Dip, try leaving a junk silver coin in it for a few days. It would probably be worth taking before and after photos. 

 On the plus side, it might make milk spotting look good in comparison.

Chards

Link to comment
Share on other sites

If it is just for getting a non-numismatic piece of silver back nice and shiny, why not just use a silver polish product for coins ?

I used the baking soda way once and I think it is so much work to get it really clean, so using a special product to clean coins is so much easier.

( I use it for really dirty 90% junk silver coins, just because they look nicer when they are clean, value wise it does not make an impact because it is junk silver ... )

Edited by Centauri167
typing error
Link to comment
Share on other sites

  • 3 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Cookies & terms of service

We have placed cookies on your device to help make this website better. By continuing to use this site you consent to the use of cookies and to our Privacy Policy & Terms of Use