MR Duct Sealer is suitable for air conditioning and ventilation ductwork systems. Forms a flexible yet durable seal eliminating fumes and toxic hazards. Compatible with galvanised iron, primed steel, fibrous cement, glass, concrete, masonry, lead, timber, hardboards, brick and sheet metal. Commonly used for sealing board facings at joints, laps, over staple and weld pin punctures, flexible air ducts to rigid connectors. Colour: Grey
