18 × 1-5/16” ZAC Aluminum Seal Washer
Bonded seal washer designed for roofing and siding fasteners to provide a weather-tight seal and corrosion resistance.
Specifications
Additional information
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Description
The 18 × 1-5/16” ZAC Aluminum Seal Washer is a bonded washer designed for use with metal roofing and siding fasteners. It features a durable ZAC aluminum metal backing combined with a bonded sealing layer that helps prevent water penetration at fastener points.
Commonly used in metal building applications, this seal washer improves weather resistance while protecting panels from leaks caused by vibration, thermal movement, or exposure to the elements. It is suitable for outdoor installations where corrosion resistance and long-term sealing performance are required.
Features
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ZAC aluminum metal backing for corrosion resistance
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Bonded sealing layer for weather-tight fastening
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Helps prevent water penetration at fastener locations
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Designed for metal roofing and siding applications
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Suitable for exterior and exposed environments
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