How to clean the bottom side of the inverted rubber?

I use a jelly cleaner

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Lick it lol.

Honestly, this is a bit OCD. If you really want a deep clean, dish detergent and toothbrush will work.

I'm also guessing the "white residue" is not dust but oxidized rubber, in which case, you won't be able to clean them off.

Peel the rubber off the blade and wash it. When dry glue it again.
Afterthat clean the rubbers after every playing session and wash your hands more often.

Adhesive tape?

Jelly Cleaner is the best, maybe no one has tried it hence they're not aware, but this is the best way to clean rubbers

I am using it from a month, totally loving it

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chintanmashroo said:

Jelly Cleaner is the best, maybe no one has tried it hence they're not aware, but this is the best way to clean rubbers

I am using it from a month, totally loving it

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I think the main issue is that the term "Jelly Cleaner" is not something we are familiar with (it also doesn't register any hits on a google search). Can you describe what you mean by "Jelly Cleaner"?

I would like to see a picture. Never heard of this problem before. How old is the rubber?

Lula said:

I would like to see a picture. Never heard of this problem before. How old is the rubber?

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Finally, someone gets at the real issue. How old is the rubber? Can you take a photo of the rubber so we can see what is actually going on?

BTW: without the photos, I would say, why on earth would anyone care about that area being a little dirty? Leave it as a badge of honor that you have put use into your rubbers.

Or maybe it is time to get new rubbers. If they are more than 2 years old, you can be like Der_Echte and use them despite the fact that they are old and their performance is starting to fade. Or you can get new rubbers.

1 year! No chips, no scruff marks? Damn you keep your shit clean!

But yeah, those are probably not dirt.

Dirt around the bottom of the rubber where the brand stamp is is a badge of honor, an indication of the efforts you have made.

Maximilian2016 said:

Well, I am cleaning the rubbers after each game and I am washing the sponge used to clean them once a month but somehow the dust still subsided (if it is dust). Also, I am using protective films for the rubbers and I keep the racket in a case.

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Oh, then its more like a "cleaning residue".

Quite a collection of cleaning liquids you got there!

Isn’t that just salt / sweat staining the rubber? Not much to do about that.

langel said:

Oh, then its more like a "cleaning residue".

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mart1nandersson said:

Isn’t that just salt / sweat staining the rubber? Not much to do about that.

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I think Langel may be right. I think that is probably residue from all those cleaning chemicals.

Maximillian, this is for you. Those cleaning substances are mostly gimmick. The chemicals in them cause the rubber molecules to oxidize faster. Which means, your rubbers will wear out faster. You are better off NOT USING THEM.

A small amount of water on a simple sponge (you definitely do not need one of those TT sponges) or even a small amount of water on your hand, is all you need to clean your rubbers.

If you stop using all those silly chemicals, and just use water instead, you will likely stop having that cleaning product residue buildup on your rubbers. It may be too late for this set. But it probably won't happen on the next set if you are less OCD about cleaning and only use water instead of all those chemicals.

Baal said:

Dirt around the bottom of the rubber where the brand stamp is is a badge of honor, an indication of the efforts you have made.

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But I also agree with Baal, you should not try to Martha Stewart away the battle scars on your equipment. Continuing on that tangent, I think that means your blade needs more dings and your handle needs to show the sweat from hard play more clearly.

Go out and play harder and forget about whether your racket looks pretty. It will be there in a scuffle better for you if you let it get down and dirty.

The guy is definitely 2 levels above me, but THIS is how your stuff should look after a year:

https://www.tabletennisdaily.com/forum/showthread.php?9363-Broken-blade

No idea of what to do about that. I probably wouldn't even do anything really.
Don't worry about that too much. You won't be using that part of the rubber to play anyways. Also, it's a really nice and clean-looking setup already.

Agree with a guy above. Almost funny. I also think it is from cleaning your rubber. Try to just clean above the text.

I am impressed how much you take care of your racket!