Patent ID: 7052202

Claim:
A process for forming a coherent refractory mass on the surface of a road comprising the steps of: providing a road marking composition comprising at least one non-combustible dry powder and at least one combustible dry powder, wherein when the mixture is ignited in the presence of an oxidizer, the combustible powder reacts in an exothermic manner with the oxidizer and releases sufficient heat to form a refractory mass under the action of the heat of combustion and cause the refractory mass to adhere durably to the surface of a road mixing one or more non-combustible materials with one or more metallic combustible powders and an oxidizer; igniting the mixture in a combustion chamber so that the combustible particles react in an exothermic manner with the oxidizer inside the combustion chamber and release sufficient heat to form a high temperature coherent refractory mass under the action of the heat of combustion; and projecting said high temperature mass from the combustion chamber onto the surface of the road so that the mass adheres durably to the surface of the road.