Moderate Atmospheric Dirt: We recommend an occasional washing with clear water using a garden hose and soft-bristled brush (a long-handled, car-washing brush is ideal for this purpose).
Heavy Industrial Atmospheric Dirt: Wash in the manner indicated above, but use the following solution:
- 1/3 cup detergent or 1/3 cup dish soap (Tide®, for example)
- 2/3 cup trisodium phosphate (Soilmax or Dirtex, for example)
- 1 gallon water
Mildew Accumulation: Mildew can collect on surfaces of all types of building products and is often evident on surfaces that have not been properly cared for and maintained. Normally, mildew will appear as black spots. Mildew is easy to remove by using the basic cleaning solution above with the addition of sodium hypochlorite as follows:
- 1/3 cup detergent (Tide®, for example)
- 2/3 cup trisodium phosphate (Soilax®, for example)
- 1 gallon water
Caulking Compounds, Tar and Similar Substances: Use mineral spirits in reasonable amounts and apply directly to the foreign substance. Immediately after cleaning, rinse the area thoroughly with water.
Caution: Do not exceed the recommended concentrations of cleaners. To do so can cause damage to the Product. Avoid skin and eye contact with the solution, and in all cases follow manufacturer’s instructions for the use of cleaning compounds and solutions. Avoid use of abrasive-type cleaners and strong solvents. Test any cleaner on an inconspicuous area before applying to major areas. To minimize streaking, always follow with a rinsing of clear water. Excessive scrubbing is unnecessary and can be harmful to the Products, and may cause undesirable look in areas over the finish.