The Official Mail Showcase Thread (poker related) (474 Viewers)

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So, best way to remove the gold inked cancellation stamp?

Is there a way to remove the embossed cancellation stamp?
Acetone... (but there's concern it might affect the chip itself) Or caustic soda + ultrasonic machine! In my case, this worked fine, though on different chips. These chips are completely covered in plastic, so there's no need to worry about damaging the front part.

I also did this right now using the same caustic soda, a melamine sponge, and my fingers. Soak for 1 minute. It's a bit tedious to do by hand, so I used an ultrasonic cleaner. If any stamps remained, I cleaned them off manually.
Naturally you need to try it on 1 chip.
I did this for you right now...
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This is a pair of chips that I cleaned in an ultrasonic bath using a caustic soda solution. Essentially, it’s the same alkaline solution (many people use metasilicate), but caustic soda is several times cheaper and easier to obtain—while still giving us the same alkalinity.
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The stamp has worn down part of the cross-hatching—essentially flattening it—but otherwise it’s barely noticeable and doesn’t affect the chips’ functionality at all. Honestly, I’m very pleased that it worked out.
 
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Acetone... (but there's concern it might affect the chip itself) Or caustic soda + ultrasonic machine! In my case, this worked fine, though on different chips. These chips are completely covered in plastic, so there's no need to worry about damaging the front part.

I also did this right now using the same caustic soda, a melamine sponge, and my fingers. Soak for 1 minute.
I also did this right now using the same caustic soda, a melamine sponge, and my fingers. Soak for 1 minute. It's a bit tedious to do by hand, so I used an ultrasonic cleaner. If any stamps remained, I cleaned them off manually.
Naturally you need to try it on 1 chip.
I did this for you right now...
View attachment 1664771View attachment 1664772View attachment 1664773View attachment 1664774View attachment 1664775View attachment 1664776View attachment 1664777

This is a pair of chips that I cleaned in an ultrasonic bath using a caustic soda solution. Essentially, it’s the same alkaline solution (many people use metasilicate), but caustic soda is several times cheaper and easier to obtain—while still giving us the same alkalinity.
View attachment 1664779View attachment 1664780View attachment 1664781View attachment 1664782View attachment 1664783View attachment 1664784

The stamp has worn down part of the cross-hatching—essentially flattening it—but otherwise it’s barely noticeable and doesn’t affect the chips’ functionality at all. Honestly, I’m very pleased that it worked out.

Thank you for this, I was worried about damaging the chip inlay so didn’t try
 
I have no cancellation stamp chips, but I wonder if using an alcohol instead of a ketone could do the job. Maybe isopropanol or methanol? They would be a lot gentler.
 
Thank you for this, I was worried about damaging the chip inlay so didn’t try
Well, someone had to try it. I was also worried about the labels (I even saw the liquid seeping into them), since caustic soda is quite aggressive and needs to be applied to a surface you don't mind ruining, like an old table. However, I didn't notice any changes to the label. And it really did work in my case.
 
I have no cancellation stamp chips, but I wonder if using an alcohol instead of a ketone could do the job. Maybe isopropanol or methanol? They would be a lot gentler.
I don't know about ketone. But it's gentler than the acetone you get at the supermarket. Alcohol didn't work much for me, though. Scrubbing with a sponge was more effective.
Regular acetone has a VERY HIGH (I'D EVEN SAY 100%) CHANCE OF DAMAGING THE CHIP'S BODY. It's effective, but you have to be very careful when using it. I have samples from Apache where this happened. I'll send you a photo this evening.
 

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