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.
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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