I received some comments from a few Happycall users that their pot turned sticky after some time. This may be due to the pot not being thoroughly cleaned after each use. These are some tips on keeping your Happycall pots in tip top condition from my personal experience. Please refer to the...
After preparation, the slurry had to be stable at least until its use for the impregnation process. Its stability was controlled by means of pH adjustment. As a thin layer of SiO2 is always present at the surface of silicon grains, both silica and silicon show electrostatic repulsion between ...