I'm hoping to find an answer to how I can get sheets of 4' x 8' bathroom tile board to adhere to the wall after I removed the old tile board and sanded the old adhesive down with 50 grit sandpaper but didn't remove all of it. The makers of Liquid Nails say not to apply it over old adhesive. The old adhesive was applied with a trowel and practically covers the entire surface of the plywood. Do I have to continue sanding or is there another adhesive I can use? Is there another/better method to remove the old adhesive?
I tried to upload an image but received the following error message.
image.jpg: This is not a valid image file.
I went to: manage attachments/add files/choose file/choose existing, selected my picture, tapped on upload.