Fiberglass Powder Cleaner
Powdered formula, great effective cleaner for all fiberglass and non-skid surfaces. Removes heavy oxidation, deep seated stains, light rust, dirt, grease and oil.

Advices
Use gloves, boots and glasses.
 
Soak fiberglass with fresh water. Sprinkle the product directly on surface and spread it with a soaked sponge. Brush and let it work for a maximum of 5 minutes. Rinse it very well with a hose. Avoid contact with metal objects.
Let it dry and afterward use SADIRA Fiberglass Brightener (Ref. 4003, 4004)
 
Very important: always work with this product backwards the open air in order to avoid powder getting inside the eyes.