Application: Check whether these are actually fold marks. Remove residues such as folds or gum from the stamp. (Use ERNI rubber remover.) Treatment of water-sensitive and non-colorfast stamps and stamps is not recommended! Pour ERNI folding stain remover into a bowl and completely immerse one stamp at a time in the solution. During the reaction time, turn and move the stamp frequently with tweezers. In most cases, ERNI folding stain remover brings the desired result. The printing color may have been changed due to the effect of the fold and may dissolve when treated with ERNI fold stain remover. (Liability excluded!) Remove from the solution after 45 minutes. Rinse the stamp in a water bath, then dry as usual. If the stamp or solution becomes discolored, change the fluid. Do not mix or dil.
