Here’s an illustration for a better understanding.
Fig. 1.1 (Before)
Fig 1.2 (After)
An experiment using 2 different kind of inks used in Singapore company stamp. On the left, we have a stamp that is made from a water-based ink where else on the right, we have a stamp made of oil-based ink. In order to make it into a fair experiment, both different stamps are being stamped into the same piece of paper at the same time. After which, we sprinkled some water onto the paper and the immediate results are shown in Fig 1.2. Please do note that the pictures (Fig 1.1 and Fig. 1.2) above are unedited. According to the experiment result in Fig 1.2, it is proven that a water-based ink artwork would be smudged upon contact with any form of liquid. However, when water touches an oil-based ink artwork, it would still remain eligible. Imagine having rain pouring over your artwork, a water-based ink stamp would definitely be fully smudged and would become incorrigible. In conclusion, the difference between an oil-based ink and an water-based ink is that one would smudge upon touching water where else the oil-based ink would not be affected badly when it touches water. Therefore, when one is considering to purchase a stamp, do consider investing a little more on a oil-based inking stamp. In the long run, it would definitely be much more valuable considering the fact that an accident would not cause much trouble to the user.