Application
MARATHON CWS components are designed for application using airless spray equipment in order to achieve the required uniform high film build. Use minimum 2,000 psi fluid pressure, 30 mesh in-line filters and a .017" to .025" spray tip.  Brush or roller may also be used for touch-up, edging work or small areas unsuitable for spray applications.  United recommends that the MARATHON CWS system be installed by Certified Contractors.

Apply using multi-directional spray passes to assure positive coverage.  On applications requiring two or more coats, subsequent coats should be applied in a direction perpendicular to the previous coat after it has dried.  All surfaces must be uniformly coated and free from voids, pinholes or blisters.

For issuance of the 10-Year No-Peel Warranty, the MARATHON CWS must be applied by a Certified Contractor.  Apply one (1) coat of  MARATHON CWS Sealer at the rate of 150 to 250 sq. ft. per gallon (3.6 to 6.1 m²/l), depending on the surface porosity. Once the Sealer has dried, apply one (1) coat of MARATHON CWS Topcoat at the rate of 100 to 150 sq. ft. per gallon (2.4 t o 3.6 m²/l).  This will result in a total dry film thickness of 9 mils. The minimum thickness required at any location shall be dry 7 mils (178 microns).

Refer to MARATHON CWS Technical Data & Application Instructions for detailed information on topcoat application.

Use of water and (UCC) or other similar biodegradable detergent to thoroughly flush equipment.  Purge the water from the system using Mineral Sprits or Glycol Ether.  Leave the solvent in the lines and equipment until the next use.  It is not recommended to leave MARATHON CWS  components in the pumps or hoses.