Polyester fiberglass putty designed for use in body shops, railway equipment, machinery, boats, to fill dents, cracks, perforations or splits in steel, cast iron, aluminium, electro galvanized galvanized or GRP fiberglass polyester laminates. It can also be used in the construction of models and prototypes where an easily moldable material is required. It stands out for its creamy consistency and easy application. Its low density provides good filling ability in layers of 2-4 mm, resistance and sandability with finer grains than conventional fillers. Increases the mechanical resistance of the repaired element.