Fosroc Nitoseal MB175
Fosroc Nitoseal MB175
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Nitoseal MB175 — Bitumen Rubber Sealant
Nitoseal MB175 is a bitumen-rubber sealant by Fosroc engineered for sealing lap joints in drainage channels and gutters. The combined bitumen-rubber formula offers waterproofing durability with flexible adhesion. It resists biodegradation and standing water immersion — critical for Hong Kong's humid drainage environments where standard silicone sealants would fail. Non-sag properties allow vertical and overhead application. Supplied in 380ml cartridges for standard caulking guns.
Key uses: drainage channel lap joints, gutter connections, roofing joint sealing, waterproof flashing overlaps, general civil engineering joint sealing.
MB175 vs silicone sealant: MB175 is bitumen-based, resistant to standing water and biological degradation in drainage environments. Standard silicone is not designed for prolonged water immersion and will deteriorate in drainage channel conditions.
