Hello,
Tips for Cleaning Picture Frame Glass:
() Acrylic glass can easily become scratched on the surface from harsh cleaners and scrubbers.
() Never use windex or anything containing ammonia or bleach.
() Never use paper towels, only soft cloth.
() If the surface of acrylic glass is scratched, use a car wax or other buffing compound to remove them. Apply the wax and use the supplied buffer to buff until the scratches are removed.
cheers,