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 Post subject: Strange marks on unused Raytech lap
PostPosted: Sat Feb 03, 2024 12:44 am 
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I recently decided to use a copper lap made by Raytech Industry's and I had stored it in a zip lock freezer bag alone and out of heat and freezing Temps etc. however when I took it out to use it has strange marks on it and looks weird. I am wondering if these unknown marks will interfere with the polishing etc. Can anyone tell me? Or is there a certain way I might be able to clean it to remove these marks?


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 Post subject: Re: Strange marks on unused Raytech lap
PostPosted: Sat Feb 03, 2024 9:46 pm 
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try clean with wd40 see if stains remove.


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 Post subject: Re: Strange marks on unused Raytech lap
PostPosted: Sun Feb 11, 2024 7:04 pm 
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Location: Maryland
Why don't you try polishing a stone and find out if they have any effect?

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 Post subject: Re: Strange marks on unused Raytech lap
PostPosted: Mon Feb 12, 2024 4:00 am 
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Joined: Wed Oct 14, 2015 8:41 am
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Location: Germany
check out any of these videos
https://www.youtube.com/results?search_ ... copper+lap

Martin


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 Post subject: Re: Strange marks on unused Raytech lap
PostPosted: Mon Feb 12, 2024 12:36 pm 
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The only issue I see comes if the chemical that caused the stains also effected the hardness of the copper. That makes the lap wear at different rates. I have seen this in the past. It ruins the lap. The only fix is to turn the lap past the depth of the difference in hardness.


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 Post subject: Re: Strange marks on unused Raytech lap
PostPosted: Wed Feb 14, 2024 2:12 pm 
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thank you all for the replies..I will go ahead and charge the lap and try using it


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