Blocking Wax White 30g

White blocking wax designed for blocking out undercuts and relieving areas on gypsum dies during crown and bridge fabrication. This wax does not burn out completely during casting, making it unsuitable for direct wax pattern construction. When used on dies, a spacing varnish must be applied over the blocking wax before applying pattern wax to prevent adhesion between the two wax types. Package contains 1 jar of 30g.