Description
Magic® RTV Silicone Sealant is a premium, single-component adhesive that cures at room temperature to form a tough, rubbery seal. Designed for high-performance bonding, it creates a flexible, waterproof, and leak-proof barrier that will not shrink, crack, or dry out over time.
Whether you are forming custom automotive gaskets or weatherproofing windows, this high-temperature sealant delivers a reliable, long-lasting hold.
Key Benefits of Our RTV Silicone Sealant
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High-Temperature Resistance: Withstands extreme engine and industrial temperatures without losing its sealing properties.
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Permanently Flexible: Forms a tough rubber seal that resists vibration, thermal expansion, and contraction.
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100% Waterproof: Creates a watertight and airtight barrier, preventing leaks and moisture damage.
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Chemical & Oil Resistant: Holds up against engine oil, transmission fluid, water, and antifreeze.
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No Shrinkage: Cures perfectly without shrinking, sagging, or cracking.
Common Automotive & Industrial Applications
This heavy-duty sealant is widely used by mechanics and technicians for tough, high-heat environments.
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Instant Gasket Maker: Replaces pre-cut paper, cork, or rubber gaskets on valve covers, water pumps, and oil pans.
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Auto Glass Sealing: Effectively seals windshields, sunroofs, and headlights to prevent water leaks.
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Industrial Maintenance: Insulates electrical wiring and seals HVAC ductwork or heavy machinery components.
How to Apply for the Best Seal
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Clean the Surface: Ensure both surfaces are completely dry and free of dirt, grease, or old gasket material.
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Apply Evenly: Apply a continuous, even bead of the silicone to one surface.
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Assemble: Wait a few minutes until the silicone “skins” over, then press the parts together. Do not over-tighten bolts, as this will squeeze out the sealant.
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Curing Time: The sealant cures fully at room temperature. Allow it to set for 24 hours before exposing it to fluids or heavy use.



