Duct (up to 1250 x 1000mm) through a fire-rated plasterboard or concrete wall. Internal or external fire protection. 3M Duct Wrap 615+ single layer for duct and double layer adjacent to penetration. Plasterboard collar with fillet of 3M Fire Barrier Silicone 2000+ sealant.
Fire rating: Up to 120
Thermal rating: Up to 120
Size: Up to 1250mm wide x 1000mm high
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