During the early 1950s, without any long term tests, a "SCHON" hinge was introduced to the market with the result that milions of stamps were damaged. The gum used on the "SCHON" hinge gradually penetrated the stamp paper. On the front and back of the stamp a yellowish "SCHON" mark would appear making the stamp virtually valueless. With the correct solution and treatment it is possible to remove these "SCHON" marks.

How to use: Check whether the marks are actually hinge marks. Remove any residue of hinge or gum (use Lindner ERNI Stamp Gum Remover). Treatment of water-sensitive and non colourfast stamps not recommended. Pour ERNI hinge mark solvent in dish. Only submerge one stamp at a time in the solution. During the process turn stamp frequently using tweezers. In most cases ERNI hinge gum solvent has the desired effect. If the hinge gum has seeped through into the stamp, the print colour may have been changed and may fade when using ERNI hinge gum solvent. (We accept no liability). After 45 minutes, remove from solution. Rinse stamp in water dish then dry as usual. If the stamp or the solution change colour, exchange the liquid. ERNI hinge gum solvent should neither be mixed nor diluted.

General note: Immediately dispose of any garments which may have been in contact with the solution. If inhaled, get fresh air and consult a doctor in case of symptoms. In case of skin contact: Immediately wash out with soap and water, rinse well. In case of eye irritation: Rinse well for several minutes under running water with eye lids open and consult a doctor. If swallowed: Immediately consult a doctor.

Size: 8 fluid ounces (250ml)