Always spot test before use.
Surfex-HD can be used diluted from 1 part in 100 for light cleaning and up to 100% concentration for maximum grease and oil removal.
For use as a pressure washer shampoo, ensure that your lance is discharging at a concentration of 4% onto the surface (click here to find out how you can test your pressure washer and calculate the correct concentration)
For even lighter cleaning, such as interior upholstery, dilute Surfex-HD at 1-2% in water.
For heavier soil, for example, around the wheel arches or tyres, 5-10% dilution will be suitable.
Saturate cool, greasy surfaces and leave one to five minutes.
Agitate heavy soil with stiff bristled brush.
Rinse surface with clean cold water.