In stamp collecting, a closed box containing dampened spongelike material, over which unused stamps that have become stuck together are placed on a grill. Humidity softens the adhesive and allows the stamps to be separated. A sweatbox is also used to remove used stamps from envelope paper.
In stamp collecting, a closed box containing dampened spongelike material, over which unused stamps that have become stuck together are placed on a grill. Humidity softens the adhesive and allows the stamps to be separated. A sweatbox is also used to remove used stamps from envelope paper.