Durometer A / D / O which one suitable for TT rubber?

[Gozo Zyreruna]

Hi folks!

I am interested to get a durometer myself to measure the hardness of rubber.

I, then realised that there are Durometer Type A, D & O. I am familiar with ESN rubber so which type of Durometer should I get?

Pls assist, thank you good people of TTD.

 

[turbozed]

ESN is closest to Shore O.

That's going to be your best bet.

 

[Aizen]

I have a shore A durometer because to match dhs scale but not even close, it is very stiff, gives around 30 for (unboosted) hurricane rubbers.

Shore 0 or even shore 00 should be better.

 

[Lazer]

Type A is the most common, but for TT rubbers there is a huge uncertainty factor. I think the thicker the surface the more accurate and since TT rubbers are thin it will not be accurate on any scale.

You can get all types on Amazon.

Cheers
l.-zr

 

[Lazer]

I have a shore A durometer because to match dhs scale but not even close, it is very stiff, gives around 30 for (unboosted) hurricane rubbers.

Shore 0 or even shore 00 should be better.

Shore OO uses too high pressure.

Cheers
L-zr

 

[latej]

Type O, get the thicker head/pin. I guess you wouldn't go for the thin head/pin, but just mentioning...

 

[Lazer]

Type O, get the thicker head. I guess you wouldn't go for the thin head, but just mentioning...

The head size is standard. If its shore O its 2.40 mm (spherical). If its Shore A its 1.40mm (truncated cone)
Shore A is the most common (for any soft surfacce), but I think Shore O is best suited for TT rubbers.

Cheers
L-zr

 

[Aizen]

Shore OO uses too high pressure.

Cheers
L-zr

I could be wrong but I thought it was other way around.

 

[Lazer]

I could be wrong but I thought it was other way around.

You are right, I remember it backwards. And I think Shore OOO uses a different sized head...

Cheers
L-zr

 

[haggisv]

You really want the pressure head/pin to be a ball, not a pin, because many sponges are quite 'large pored', so you need to spread the pressure over a larger area. I've used a Shore C digital durometer before, which has a 2.5mm ball as the pressure head, while all the others I could find had pins.
Although readings won't line up exactly with other scales (like ESN or DHS), you should be able to scale once you've measured a few values.
Ideally you would only measure the sponge without the topsheet, but you still get reasonbly close readings with the topsheet still attached. It should be good enough for relative readings anyway.

 

[Lazer]

You really want the pressure head/pin to be a ball, not a pin, because many sponges are quite 'large pored', so you need to spread the pressure over a larger area. I've used a Shore C digital durometer before, which has a 2.5mm ball as the pressure head, while all the others I could find had pins.
Although readings won't line up exactly with other scales (like ESN or DHS), you should be able to scale once you've measured a few values.
Ideally you would only measure the sponge without the topsheet, but you still get reasonbly close readings with the topsheet still attached. It should be good enough for relative readings anyway.

The one You are talking about is Shore O. Shore C is (I think) like Shore A but with higher pressure...

Cheers
L-zr

 

[haggisv]

You may be

The one You are talking about is Shore O. Shore C is (I think) like Shore A but with higher pressure...

You may be right, the manual mentions A C and D as the needle shapes, the C being the 2.5mm ball. Reading vary a lot with different sponges, so it's in the right hardness range.
This is what mine looks like.

 

[Lazer]

Shore hardness explained compactly - PAPUREX

Shore hardness is a key figure to measure the hardness of materials. Read all about the term, scales and methods ✅

papurex.de

I had to double check...
Check the rules a little bit down on the page. Shore C has a truncated pointed tip, like shore A but a higher weight.
I would say Shore O (or OO) is the most optimal to measure table tennis rubbers with.

Cheers
L-zr

 

[Gozo Zyreruna]

will do guys, I'll get the Shore 0 duro. It's USD 15'ish on Lazada.

 

[dingyibvs]

I got a shore A, but I agree the tip is not well suited for TT rubbers. I think it might have more to do with the pip structure of the topsheet since you can't really measure just the sponge very easily. Shore O looks like a better suited tip.

 

[Grumms]

Type A gives ridiculous number (like 20-25 for chinese rubbers). Type C gives good results, below the expected by some °, but always consistant. I ordered a O too, but not received yet.