SBR (Styrene Butadiene Rubber) Sheet, 70 Shore A, Black, Smooth Finish, No Backing, 1/2" Thickness, 12" Width, 12" Length

Is this rubber spongy like a mouse pad?

Could i use this to fabricate a cover for my sump pump? I want something flexible to cut around the outlet pipe, but not sag.

What temperature does this melt at? Will a 130w hot knife trim this?

Can it be cut and used as a sole for shoe, to adjust height, for a person with deformed leg and bad posture ?