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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
heavy-duty
Suitable for interior and exterior applications
Below 40°C
The brown color of this silicone adds a natural and seamless finish to your projects
Exposure to excessive heat can age components resulting in shorter shelf life
Flash Harry 1LT Bitumen Mastic Black Waterproof heavy-dutyThick plasticised bitumen sealer Bitumen Mastic is a trowel applied, heavy duty, thick, black, plasticised sealer and repair compound, which may be used to seal most roofing defects: roof screw bolts, nail holes, sheeting laps, valleys, gutters, down pipes, cracked tiles and many other roofing details. Bitumen Mastic has a built in membrane so an additional membrane is generally not required. Bitumen Mastic is solvent based and therefore not
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