Nowadays, there are endless kinds of whiteboard pens on the market. In addition to the novel and unique appearance of the whiteboard pen, the quality of the ink is also crucial. Here is a brief introduction to the advantages and disadvantages of the Jinwannian whiteboard pen water that is currently on the market. First, smell the smell. Generally, the authentic Jinwanian whiteboard pen water will only have a faint smell of alcohol. Its main solvent medium is fatty alcohol. Generally, alcohol is used as the main solvent, together with other additives. The poor fake whiteboard pen has a very thorny water. The smell of the nose, which often causes great damage to the human body. Secondly, the authentic whiteboard pen water has 8 hours, 12 hours or 24 hours, and even has a long 72 hours, but then it will have a different effect on other performances; and the fake ones are only two or three times. hour. Finally, the erasability. The erasability is generally divided into two types: instant erasable and time-delayable. The length of the remaining time reflects the actual level of the ink. Generally, the length of the remaining plate is preferably long. The above is some of the methods for identifying the advantages and disadvantages of Jin Wannian's whiteboard pens. It is simple and easy to operate, for everyone to exchange reference. Led Reef Light,Reef Led Light,Led Aquarium Light,Aquarium Light Led HENGYUE INDUSTRIAL CO.,LTD , https://www.hetoaquarium.com