Vallejo Milliput Standard Grey-Yellow Two Part Modelling PuttyStandard Yellow Grey Putty is Milliput's general purpose grade it has been used for many years for the toughest tasks. Typical applications: Filling dents and scores in metal, plastics or woods Repairing water and fuel systems Caulking, filling and sealing on fiberglass, metal and wooden boat decks and hulls Modelmaking Jewellery making Sculpting Picture frame restoration Plumbing repairs Underwater applications Temporary repairs for car petrol tanks,