I need help to identify the maker of some sandpaper it is blue with the numbers 402 2 on the back, It is about 1/16” thick. I like it because it is thick and stiff. Maybe some one will recognize it. I will enclose a pic.
Well then my only guess is it is an automotive paper like I said because of the blue color. They use it for body work. Usually a name is on it it. That number is not ringing any bells. Good luck.
Well Louie I do not know the name and I believe we will never know the name unless the OP can find the name or an old piece that had the name. I gave my opinion as to what it is used for so that may lead in in the right direction as to where he might find it. I also took the time to find his photo and posted a link to the stuff he has in question. Maybe you can take a look at the photo and see if it matches to Klingspore sandpaper. I can list a bunch of sandpaper names and makers if he would like that and check their web sites. I believe it is an emery cloth paper used in the metal industry.OP asked who is the manufacturer of the paper, not what is is used for.
I have some fairly stiff cloth-backed 'paper' that is bluish that I know was made by Klingspor - came in one of their 'turner's special' bargain boxes.