I went to Promethean's Website and copied the following out of the Activboard Instruction Manual:
Maintenance & Cleaning
Do not use abrasive powders, soap, detergents or petroleum
based cleaners or solvents on the ACTIV board surface.
Scratches cannot be repaired or removed and will make ink
and stain removal in that area difficult. Do not use metal
brushes, scrapers or abrasive cleaning cloths.
The surface of the ACTIV board is made to very high standards of durability. In
normal use you can expect satisfactory results every time with proper
maintenance.
Due to the high quality of projection surface it is not recommended that dry
wipe markers are used on a regular basis. If, however, the surface needs
cleaning after the use of such markers, we recommend the following methods:
• For normal dry wipe markers use Sanford Expo Towelettes 81850.
Do not use a board rubber.
• For permanent markers use Sanford spray cleaner 81803.
You should be able to obtain these products from an office supplies company.
A polish with standard household spray polish will restore the smooth writing
surface after cleaning.
