For many years conservators have favored solvent-based Incralac as their coating of choice for outdoor bronzes. Despite its popularity, Incralac has drawbacks. The solvents that evaporate during application and drying exceed permissible limits in some areas of the country. Therefore, a water-based system has been developed.
Incralac water-based clear coating exhibits all of the good properties of solvent-based Incralac. Two years of outdoor (ongoing) and 500 hours of accelerated weather exposure shows this coating to be as good or better than the solvent-based Incralac, which is the industry standard.
Unlike solvent based Incralac, WATER-BASED INCRALAC IS NOT FOR USE ON SURFACES WITH NEW PATINA.