... used on most construction materials , such as brick, concrete, plasterwork asbestos cement, wood, glass, ceramic tiles, metals, aluminum, zinc and so on ... , 24pcs/ctnspecificationNoItemThe StandardTest result1AppearanceHave no grain, no agglomerationsGood2Specific gravity, g/cm31.553Extrusion ability, m/min≥1001024Tack free time, h≤10.45Elastic recovery ...