I need to find out who makes the 3/4" thick soft pad and provide a link. It makes sanding the contours and curves easy without digging into the glass. I am using it on a cheap harbor freight sander with a reduced disk, low rpm's

I was expecting to find glass cloth but instead found glass mat and resin that looks like gray concrete. I guess NDK was using mat on the outside and cloth on the interior 10 years ago