I made some small boards using thermal toner transfer and noticed when cleaning the surface with a ScotchBrite pad, that it is not glass-flat. They were very clean when they arrived and had no scratches But there is some slight texture to the surface that you see when first start cleaning. After scrubbing in all directions it seemed fine. I got pretty good adhesion and etching with a mix of line widths down to .020/.015” lines and spaces. I always make more than I need and about 70% of the boards etched cleanly.
Streamline Your Prototyping Work With WayinTop Jumper Wire Kit - Preformed & Flexible Breadboard Jumper Wires With Tweezer Tool
7 Review
Douk Audio U2 PRO XMOS XU208 Digital Interface - USB To TOSLINK/Coaxial/Optical/HDMI IIS Adapter For DAC, Preamp & Amplifier | PCM & DSD256 Support
21 Review
Friencity Digital To Analog Audio Converter, Optical To RCA Converter, SPDIF(Toslink) Coaxial To Stereo L/R AUX Adapter W/Optical Cable For TV Amps Blu-Ray Player PS4 Home Cinema, Plug N Play
6 Review
30-Value 300Pc 1W Zener Diode Assortment Kit (3V 3.3V 3.6V 3.9V 4.3V 4.7V 5.1V 5.6V 6.2V 6
17 Review