Herring stone has two sides, one grows and the other chews. Usually, the chewing surface is seriously worn and aged, and sometimes herring even has snail shells embedded when chewing. It is necessary to clean up the aging part of the chewing surface before grinding the herring stone. In addition, the aging part of herring stone has a strong fishy smell. After polishing and cleaning, the smell will be much lighter and smell much better, so it will not be so pungent.
Glue fixation and protection
It is a process to prevent cracking and slag collapse during grinding, which is called "protection" in jargon. It is more suitable for grinding with grinder or engraving machine, mainly to prevent slag collapse during grinding. However, herring stone has certain toughness and is not easy to collapse. Manual grinding can be omitted, but attention should be paid to the friction and heating problems during grinding. The chewing surface of herring stone is usually seriously aged. After we fix it with glue, it can play a very good reinforcement role. If you meet a strong one, of course, you don't need to reinforce it.
Here we choose sandpaper as the polishing tool. In the first step, you can choose 180 -400 mesh sandpaper to clean impurities and cracks on the surface of the herring stone and polish the shape of the herring stone. Pay attention to the problem of friction and heat generation when grinding, otherwise it is likely to crack the herring stone.
The finely polished herring stone will have a jelly-like texture, a pink color and a bright emerald. We can use fine polishing tools for deep polishing.
The main component of herring stone is keratin, which is warm and attractive in color. Usually, we should pay attention to the change of wet and dry conditions, prevent wind, sun and rain, prevent air conditioning and heating from blowing directly, avoid water and like oil, and the temperature difference will directly crack the herring stone. This is what everyone needs to pay attention to, that is, pay attention to the temperature difference. After aging and patina, the effect of herring stone is the same as that of old amber. It's a dragonfly wing pattern, which looks very shocking and amazing!