Wow I can't seem to get two of the same answers at a time. Here is a pic to better understand what I'm wanting to do...The overlap is 2-5: depending on whats the safest.
I have a few mulltiple sized 4mm(5/32")thick tempered glass ranging from
24" to 54" in length and all pieces are 24" tall. What are my options with this glass. Would they be safe to use on a 8'long by 2-3' wide plywood tank. I could use 1 4ft long piece and 2 smaller pieces on the outside.
Also...
If you want a scraper that will last forever and cost about 6 bucks then go to lowes or home depot and ask where you can find the scrapers/putty knives. They will have a various selection of sizes and qualities. I got the 6" stainless steel professional scraper for 6 bucks.