uxcell Single-Sided Copper Clad Laminate PCB Circuit Board, 150x100mm 5.91x3.94 inch, 1.5mm Thickness DIY Prototyping PCB Board, Name Board, 5pcs

2 stars for the price and fast delivery. The board material is not FR-4, but rather something like FR-2. Pressed material soaked with some sort of epoxy. Brittle, warped, uneven, releases a terrible phenolic smell under heat, easily damaged by an SMD rework fan.

The description clearly stated that this board is made of FR4 - glass and epoxy. It is NOT even close. It is cheap phenolic, and not even flat, but warped at that. This junk is probably chopped up factory reject garbage that was unsuitable for any kind if use in manufacturing of even the cheapest low end electronics. Ripoff!

I've had a lot of problems with the copper on these boards lifting when I try to solder components. I'm left with traces that are broken and pads that are just missing.

These will work ok for the hobbist but those of us that use a CNC to make our boards you have to be creative to use them.They are thick and thin everywhere. So uniform flatness is not there.They are warped horribly! No getting around that unless you get creative with a screw in the middle to keep them flat for milling.I have purchased 3 packages in the last 6 months as a backup for my regular supplier and these take time to make your custom project.

One star is too many!!I realized something was amiss when the copper was completely etched within 2-minutes of dropping it into the ferric chloride bath. The copper is sprayed on like paint. I don't think this is authentic circuit board material. It's completely bogus. I didn't even bother placing parts after it was etched. I threw the blank boards away and bought real copper clad boards.

I like these copper clad (pcbs) boards for my hobby projects!!!!

Much better quality than expected.

Product arrived well before ETA, well packaged & in good shape. The boards themselves were a disappointment. I already knew from the scant description that the material was FR2 (phenolic), though they described it incorrectly as bakelite, so that was no surprise.However, the boards are actually two very thin boards bonded together (I'm guessing 1/64" or 0.4mm), presumably, as far as I can tell, with no copper in the middle (thank goodness!) See attached photos.This will do for a rough prototype, but for a more polished final PCB, I'd go with a brand name board (if a single, one-shot job) or a PCB fab house (if doing several).Bottom Line: Ok for rough proof of concept or prototype, but inadequate for production, quality work.NOTE: The reason I chose this product is the difficulty in finding good 1/32" (0.8mm) copper clad at reasonable prices. This product was one of the very few 1/32" single sided I found on Amazon.