Gilsonite low voc coatings

Gilsonite solvent-borne coatings are the most dependable in areas with variable temperatures and humidity, and where substrates are oily or dirty.
Properties
Where VOC is limited, but excellent weatherability characteristics of Gilsonite-based coatings are required, the proper use of chlorinated solvents helps meet VOC regulations without having to accept the limitations of water-borne paints. Gilsonite Low VOC coatings have VOC's of less than 250 grams/liter.
Formulation/Method of Manufacture
Heat asphalt and Gilsonite to 350°F (175°C), cool, thin with Xylene, then add 1,1,1-Trichlorethane under reflux.
Blend of 75% Medium Linseed and 25% Tung Oil heated at 500°F (260°C) for one hour to required G-H viscosity. Blend in Gilsonite at 350°F (175°C) for one hour and cool. Add in Xylene and then 1,1,1-Trichlorethane under reflux. Add driers and anti-skim agent. Requires six hours for handling and 12 hours to recoat.

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