Trade Mate Lead & Gutter Seal is a silicone rubber sealant. It is a high performance sealant that gives excellent adhesion to most common guttering systems including plastics, metals, painted surfaces and PVC-U. It has a high joint movement capability and will give a water resistant seal. MAIN USES For the installation and maintenance of gutter systems and downpipes, pointing joints between lead flashing and brickwork and masonry and stonework. BENEFITS No primer needed High movement capability Will not crack or shrink Remains permanently flexible Weather resistant Long service life Maintenance free