Hello!
What kind of glass do use, and where do you get it?
-I'm using tempered glass, 4mm thick, ordinary window type, not low-iron. I just couldn't find one. It costs me around 25 US$ per square meter
What do you use for backing, and do you laminate your cells onto it?
-My cells are glued with SIKA TACKDrive silicone to the back glass, and than I glue some kind of plastic sheet (self-adhesive, for stickers building) to the back side. No laminations at all.
Are you happy with their service? What percentage of your cells arrive broken/unuseable? Where do you get your tabbing and junction boxes?
- I'm very satisfied with Plastecs. They are the best option I could find for now. It's strange how just a few cells came broken (to Croatia<!) It's about 95 to 97% healthy cells. Very good indeed.
I'm sure that if I could find all the resources in Croatia, it should be even easier in USA. For the frame, I use ordinary U-alu profile, 20x20x2mm. Just be sure that the glass is entering some 10mm into the frame, and use the rest 8mm to place the screws for the mounting.
Between the glasses I use aluminium spacing used in windows building to keep the silica gel inside (also from the windows), to prevent condensation. So fr, no condensation at all.
Happy to help!