Painted Strandboard Substrate
Duh. Well, I thought I would ask BEFORE I started....but I couldn't wait. My DH made a box to contain our lawn mower (not enough room in the garage with my junk) out of strandboard which he got from the dumpsters at construction sites. He painted two coats of KILZ inside, outside and edges and I am doing a mosaic on it. I am using thinset and then will grout it. Do you think the strandboard will be a problem? Any thought. Thanks.