iwata sbs-plastic thingy on the bottom of the cup

[huskystafford]

What is that plastic thingy? Any purpose? Anybody know maybe?

 

[JackEb]

Yes it’s supposed to be there, do not remove it

 

[huskystafford]

Yes it’s supposed to be there, do not remove it

I was cleaning my cup and it was lifting while it was under water. -.-

 

[DaveG]

it is a seal - seals the bottom of the cup and the cup itself when the bottom is snugged up. They are removable cleanable, and replaceable - it is a teflon ring...

The cups used to be made without a seal, and one would/could occasionally get some paint seepage into the threads at the bottom of the cup, making it VERY hard to remove once dried...

 

[huskystafford]

it is a seal - seals the bottom of the cup and the cup itself when the bottom is snugged up. They are removable cleanable, and replaceable - it is a teflon ring...

The cups used to be made without a seal, and one would/could occasionally get some paint seepage into the threads at the bottom of the cup, making it VERY hard to remove once dried...

Thanks, this is very good info.