Gtechniq W2 Multi Purpose Cleaner easily removes stains such as biro marks on clothing, heel marks on car trim, food stains from linen table cloths to name a few.
Gtechniq W2 remove stains from any material including fabric, concrete, outdoor furniture, leather, engine bays, carpets etc.
Dilute 1 part W2 between 20 and 5 parts water depending on severity of staining and use neat on the most stubborn stains.
Used it to remove wax from plastic trim. Tried as recommended diluted ratio, didn't work. Tried undiluted, didn't work. Useless