Clean your ancestor's tombstone!

Will not deposit harmful residues:
D / 2 was developed by restorers who know the damage that can be caused by cleaners containing acid or salts. Our product has been specially formulated without these harmful agents. D / 2 is a near neutral pH quaternary ammonium solution with surfactants which help to remove surface contaminants. No other solution is more approved by the restorers of architecture and monuments.

Can be used on a variety of surfaces:
D / 2 has been used successfully to remove stains from a variety of surfaces, including natural stones such as marble, granite, limestone, sandstone, slate; masonry surfaces such as brick and cast stone; concrete; wood; aluminum and vinyl coating; and canvas.

It works!
D / 2 has been successfully used to clean up millions of buildings and monuments. From the White House to Arlington Cemetery, D / 2 is reliable to operate and continue to operate when results are important.