What is the collective noun for rubber sheets?

There isn't a specific, commonly used collective noun for rubber sheets.

Here are some options you could use, depending on the context:

Descriptive:

* Pile of rubber sheets

* Stack of rubber sheets

* Set of rubber sheets

Figurative:

* A blanket of rubber (if referring to a large amount covering something)

Ultimately, the best choice depends on the specific situation and what you want to emphasize.