Bonded Washers

Shop our range of Aquaseal bonded washers, available in a range of materials and sizes to suit a variety of applications.

Also known as Dowty seals, our washers are available in economical galvanised steel, both black and grey, lightweight aluminium, and strong stainless steel with excellent corrosion resistance.

Each washer features a bonded EPDM rubber base that compresses around the fastener to help prevent water ingress. The metal backing supports the rubber seal and helps resist over-compression, while the rubber provides effective sealing with less tightening torque required than conventional black washers.

Available in a range of internal and external diameters, our washers suit multiple fastener sizes. Explore the complete Aquaseal roof washer range here.