Originally Posted by cmw0829

A little Googling and have the answers to my questions.

Only one side of the board has acid free coating because only one side of a comic book is adjacent to the board. The points is the thickness of the board - probably in mils.

Now...I will be trying magazine boards since they are 8 1/2 x 11. Will better fit 44" wide fabric and better use of my bookshelves.