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This erasable pen cannot be used for the signing of securities and important documents because the erasable refill ink will disappear with changes in ambient temperature.
The erasable pen is different from a normal refill. It is a refill made of a special ink that changes with temperature.
If the erasable pen refill is enjoyed by a high temperature environment, reaching 50 ° C (possibly during transportation),The color of the refill will change (it will turn milky white), causing the refill to fail to write.
If this is the case, the refill can be placed in an -15 ° C environment (in the refrigerator).After 2 hours, the color of the refill will return to normal.
Remove the refill from the refrigerator, you need to wait another 1-2 hours before you can use it normally, how, mysterious?