Description
H.B Fuller 620 Masonry Grey is a neutral cure silicone formulated for durable weathersealing on roofing and glazing substrates. It offers excellent UV stability and long-term flexibility, bonding reliably to glass, coated metals, brick, and concrete. The non-corrosive, low-odour formula is ideal around metal roofing components and facade systems. It guns smoothly, tools cleanly, and cures to a tough, watertight seal. Choose Masonry Grey to blend with concrete and blockwork for neat, professional perimeter and expansion joints outdoors.




2hrs.