GeeBat 10PCS Double-sided Copper Clad Laminate PCB Circuit Board 70x100mm 7x10cm FR4 1.5MM Thickness DIY Prototyping PCB Board

well they arrived and now will be testing them by milling the circuit onto them. They appeared relativity defective free apart from the one finger print smudge on one of them and the odd abrasion on the other, this didn't remove much material it appears like a small sand paper rub the copper is just shiny there. dimensions more importantly however the boards are not 100mm x 70mm they are slightly under that size clocking in at 98/99mm x 69mm and some haven't been cut squared, but this can easily be overlooked for many applications. overall though I'm happy with them as they aren't warped which may be more important than them not being squared or slightly undersized

Good flatness, consistent thickness of .060", no meaningful nicks or scratches in the copper, good adhesion of the copper to the fiberglass (no peeling or chipping). It should be noted I machined traces in the copper, I did not etch these so I do not know how they perform in that regard.

The boards come with superficial scratches and surface marks. Only one board had a measurable gouge in in on one side, and I can just plan a route around it. For their size, and any level of mass production and distribution, I was not expecting anything more than I got, and am quite happy (pre-milling). After I draft a couple boards I may say something else. Definitely would not be my first choice if I wanted a long term board (save yourself the pain and order the board), but definitely a good fit for testing a board before ordering out something that doesn't work; again, may have something different to say after I complete a couple.

Came on time. Shipped with bubble wrap to protect the copper coating. Coating is pretty clean, no dinks, dents, or bends apparent. I used this to print a pcb via the toner transfer method and ferric chloride and had no issues. Measurement sample of 1: 73.025mm x 98.425mm 2 7/8 in x 3 7/8 in

The size was just what I needed and it is two sided copper. Will be making specialized circuit boards