Yinhe QC issues or unlucky sheet?

[BaRanchik]

Behold, my Yinhe Moon Speed (soft) after 2 months of playing.

It is basically a 70% antispin rubber now, with all the white areas having no grip whatsoever.
Even when I only got it, the left side was slightly oxidized/worn, but still grippy. A month and a half later, it looks like this.

Big Dipper (39d) also seems to be suffering from premature oxidation/wear, but not nearly as much. It seems like the area that is the most worn is actually the area I use mostly for serves, which is quite surprising to me. The rest of the sheet looks great, although 2 months in it is noticeably less grippy.

This is all with daily care and careful cleaning with a wet sponge+covering after every session, 6-9 hours a week.
Did anyone else experience similar problems with Yinhe's rubbers? I was under the impression that their products' quality was far superior, with all the great reviews.

 

[lodro]

do you dry it after the wash and before you apply the plastic cover ?

 

[BaRanchik]

do you dry it after the wash and before you apply the plastic cover ?

Of course. I clean it with a wet sponge, wipe away the water, wait for it to fully dry, and then cover it with non-sticky protective sheets.

 

[Doum]

I found the opposite with Moon Speed. They last a long time, they just don't want to die.

 

[Doum]

I found the opposite with Moon Speed. They last a long time, they just don't want to die.

They come with a sticky protective sheet. Cut to size and remove the plastic covering. Maybe this wil add longevity to the rubber.

 

[TensorBackhand]

Looks normal to me. Yinhe rubbers last a long time.

I had a sheet of Moon Speed that I used for about 4 months. Another guy needed some cheap rubber and blade and bought it off me for a few bucks. He's still very satisfied with it.

 

[hclnnkhg]

My Jupiter 3 is still usable after 80 hours. To me it loses more speed than spin, the topsheet is still in good condition despite its look.

 

[lodro]

I was under the impression that their products' quality was far superior, with all the great reviews.

Not really, we are talking about a mass -produced item and the quality will vary from run to run.
Also, we are not exactly talking about an expensive top product at about 15 bucks

 

[Tony's Table Tennis]

looks like water damaged the topsheet and possibly into the sponge side, to me

if any, the sweat spot area should loose the grip, not the sides.

 

[tackyfh]

Of course. I clean it with a wet sponge, wipe away the water, wait for it to fully dry, and then cover it with non-sticky protective sheets.

tbh chinese rubber are better preserved using body sweat than water, I remembered that (at least in my country) tap water contains a small amount of chlorium that deteriorates the topsheet

 

[turbozed]

At least with the Moon Speed, it's showing wear where the should be none like near the base of the rubber where the ball or your fingers don't (or at least shouldn't) contact. This makes me think that there's something chemical going on.

Do you use tap water? Maybe you have hard or highly mineralized water?

 

[turbozed]

tbh chinese rubber are better preserved using body sweat than water, I remembered that (at least in my country) tap water contains a small amount of chlorium that deteriorates the topsheet

I had an older guy in Vietnam tell me never to use water on my rubber recently since he said it destroyed the rubber. He probably had a bad experience with tap water there too.

I use distilled water (nước cất) and it keeps my topsheets in great condition.

 

[Tony's Table Tennis]

I heard of never using water many times too.
or never use damp damp sponge/clothes.

for ESN rubbers, I have even witness water bubble forming in the top sheet - where water went into the topsheet, causing a "human like" pimple.
once dried (it too around 2 to 3 days), the pimple will disappear.

Water does have chemical.

I either use rubber cleaner spray or my shirt (that is full of sweat), as evidence shows below:

 

[tackyfh]

I had an older guy in Vietnam tell me never to use water on my rubber recently since he said it destroyed the rubber. He probably had a bad experience with tap water there too.

I use distilled water (nước cất) and it keeps my topsheets in great condition.

I normally put tap water on my sponge, wring it then use it on my rubber alongside a bottle of cleaner. This method doesn't damage the topsheet as much

 

[TensorBackhand]

I always just use tap water for the past 2 years, and it seems to work very well. I've never noticed any long term damage

 

[lodro]

tap water contains a small amount of chlorium that deteriorates the topsheet

this is of course true but we only have the water on the rubber for a few seconds then we dry it and cover it with the plastic. I think the worst we can do is to cover the wet rubber with the plastic,

 

[JJ Ng]

Tap water here in Canada. No issues.

 

[BaRanchik]

At least with the Moon Speed, it's showing wear where the should be none like near the base of the rubber where the ball or your fingers don't (or at least shouldn't) contact. This makes me think that there's something chemical going on.

Do you use tap water? Maybe you have hard or highly mineralized water?

The water is indeed harder than neutral, with a pH level of ~7.6, but I find it hard to believe such a small difference would destroy a rubber like that. I have been using the same tap water for over a year, and it's only these two rubbers that seem to suffer, with the Moon Speed becoming pretty much useless in a very very short amount of time.

I guess I will try to either use my sweat or a rubber cleaner for my next sheets, and see if they are better.

 

[Lazer]

No way, it’s probably a sub par rubber where a small amount of moisture has leaked and resolved the glue. ESN rubbers do not have this problem.

It may also have something to do with boosting.

I have had the top layer of a blade come off but never the the rubber…

Cheers
K-zr

 

[Tony's Table Tennis]

The water is indeed harder than neutral, with a pH level of ~7.6, but I find it hard to believe such a small difference would destroy a rubber like that. I have been using the same tap water for over a year, and it's only these two rubbers that seem to suffer, with the Moon Speed becoming pretty much useless in a very very short amount of time.

I guess I will try to either use my sweat or a rubber cleaner for my next sheets, and see if they are better.

i feel it was too wet and the water penetrated into the topsheet