Chemical and Enzymatic Cleaning

When cleaning valuable artworks, special chemical and biological agents are used. The goal is to carefully remove dirt such as old grease, soot, stains, or yellowed protective varnish.
The key part is that only the dirt is dissolved, leaving the actual paints, primer, and canvas underneath completely undamaged.
For more information:
dieputzigenelfen.de
dieputzigenelfen.com