HIGH OPACITY, THIN COAT CONCEPT AIRPORT RUNWAY LINE-MARKING PAINTS

摘要

Conventionally, paints which are formulated for use as markingson roads have also been used as markings on airport runways buthave been found unsatisfactory since airport runway markings havespecial requirements. The present invention provides a highopacity thin coat concept airport runway marking paint comprising20-60% by weight of titanium dioxide in the paint or higherwithin the critical pigment volume concentration (C.P.V.C.),extenders such as Barium Sulphate, Laminar Talc, Calcite orDolomite used alone or as blends thereof, binders such asPlasticised Chlorinated Rubber, Acrylated rubber, Epoxy,Polyurethane or emulsified resins and an anti-skid aggregatecomprising crushed glass particles or calcined Aluminum oxide orthe like. Airport runway markings need frequent maintenance re-application of paint in order to obliterate the black marks leftafter contact with aircraft tyres. The high opacity paint hasthe advantage that it can be sprayed on at very thin filmthickness thereby minimising the tendency of the build up ofthick smooth film to potentially hazardous levels.