SparkoNon-Toxic Tinting Paste offers high tinting strength and its lead free compatible to almost all types of lacquers and polyurethane binder. Tinting pastes are compounds used to provide opaque solid colors when mixed with topcoats and sealers. It has high solid content and it provides high intensity and maximum solubility with binder. It is also lead-free. Binders with tinting pastes are called basecoats.