Prime Gasket Shellac Compound: Hard setting, slow drying liquid designed to coat, seal and repair most gaskets including felt, paper, rubber and composition type gaskets. It seals metal gaskets and threaded connections for light duty service. Prime Gasket shellac is a dark brown, liquid with a characteristic.
- Chemical Type: Rosin
- Appearance: Dark brown, viscous liquid
- Specific Gravity: 1.1
- Viscosity: Flow similar to SAE 60 Motor Oil