Repair of nicks and holes
The top edge of cups and mugs is often chipped. The resulting cavities are unsightly and dirt accumulates in them. Chips also occur when the entire object breaks down. It rarely happens later, so that two shells glued together form a perfectly even edge. Often times, tiny pieces of porcelain simply go missing. if you want to, so that the item returns to its former glory, you have to fill in these gaps and recreate a fragment of the decoration.
If the buttonhole is deep, you will need to apply the filler in several layers. Then each of them has to dry. Wanting to choose the color of the paint to recreate the painting, you have to mix the pigments until you get the right shade and try it on a piece of filler. The last step will be to varnish the reconstructed surface.
Sometimes the entire rim breaks off, for which a support must be built before the reconstruction. Sometimes sticking a tape is enough, however, it will be safer to use thin plastic or plywood, properly bent and firmly attached in the right place.
Sprinkle talcum powder on the bracket, that the adhesive does not stick to it and leave it until it dries.
Always have acetone and bits of cotton wool ready to wipe epoxy from tools and ceramics. The filler freezes after 6-10 hours, depending on the room temperature.
Repair of small cavities and nicks
1 Chipped porcelain can be added with a filler and a painted pattern can be recreated on the newly created surface. First, clean the gap or cavity with denatured alcohol or white spirit. Then mix the epoxy resin glue with the titanium dioxide (material available at plastic supply stores). if it's required, add powder pigment.
2 Press the filler into the smooth cavity, round wood, while removing air bubbles.
When the filler is already above the surface, remove possible stains with denatured alcohol. Wait for the filler to harden and sand off any excess, first with a needle file, and then sandpaper.