Informers wanted !!

[EyyT]

The OP asked about compound (or complex) topsheet. Top sheet is the rubbery red or black part of the table tennis rubber. You have provided picture of the sponge. Complex topsheet is when you stack layers of rubbers on top of one another. Yinhe does that. Why? I do not know.

I dont think they do that, he is doing this just for fun I think

 

[EyyT]

 

[EyyT]

All this rubber seems very normal to me and I dont know why he hates chinese rubber.

 

[Haito]

I dont think they do that, he is doing this just for fun I think

Yes they do, at least for Jupiter 2, too bad I through the rubber away. If this is the case for Big dipper as well it will be noticeable only after a bit of wearing down happened. I did not have that with my Big Dipper though.

 

[EyyT]

But if they really did used complexed topsheet wouldnt be the topsheet very thick?

 

[EyyT]

View attachment 22572

Here is picture from a tear from my first sheet of Jupiter 2. I don't have this rubber anymore. That is the only picture I have left on my phone.

I got impression this whole thing is a joke, but in case it isn't and this picture helps you, give those 20 silver pounds to whatever charity you want.

It seems like a normal blue sponge with some glue on it

 

[Haito]

It seems like a normal blue sponge with some glue on it

It is the black top sheet.

 

[EyyT]

It is the black top sheet.

So why it's blue and what is that glossy thing there

 

[Haito]

So why it's blue and what is that glossy thing there

Lighting conditions.

 

[igorponger]

This is the real example we think to be an "explicitly complex topsheet"
Both the upper layer of silicone material and the underlayer of black rubber are clearly disclosed.

We expect to have more such photos from this forum members.

JUST A HINT.
-- YOU MIGHT TRY SOME RUBBER CUTTINGS TO DECOMPOSE, SO AS TO SEE IF THE SILICONE COATING IS THERE.

 

[igorponger]

This is a real example we think to be an "explicitly complex topsheet".
Both the coating layer of silicone material and the underlayer of black rubber are clearly disclosed.

We are hopeful to have more such photos from TTD forum members directly.

JUST A HINT.
-- YOU MIGHT TRY SOME RUBBER CUTTINGS TO DECOMPOSE, SO AS TO SEE IF SILICONE COATING IS THERE.