The recommended cleaning procedure is as follows:

use lukewarm water to rinse sheet and soften dried dirt
make up a solution of lukewarm water and ordinary household cleaner or a mild soap and use this to wash sheet
use a sponge or soft cloth to gently remove dirt and grime
rinse with clean lukewarm water and repeat washing if necessary
after final rinse dry off with a soft cloth

Note:
1. Never scrub Marlon CS Longlife with brushes, abrasive materials or sharp tools.
2. Never use strong alkali or abrasive cleaners.
3. Never steam clean: use low pressures if pressure washing.
4. Never use acetone, petrol, benzene, or solvents containing Butyl Cellosolve or Isopropanol.

It is advisable to test the suitability of any cleaner on a sample piece of Marlon CS Longlife first. After installation, labels, glazing compounds etc can be removed using petroleum spirit, after which the sheet should be washed as described in the above procedure.