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MANNOL 9915 is a reddish‑brown silicone sealant that cures at room temperature and resists extreme temperatures (–40 °C to +230 °C). It remains flexible under thermal shock, resisting cracking, shrinking, or displacement.
Key Benefits
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Wide Temperature Range: –40 °C to +230 °C
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Versatile Gasket Replacement: Replaces O‑rings, washers, asbestos, rubber, felt, cork, and metal gaskets
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Flexible Seal: Absorbs vibration and thermal movement after curing
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Chemical Resistance: Withstands lubricants, coolants, gasoline, kerosene, water, acids, and alkalis
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Easy Application: Apply directly after degreasing
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Long Shelf Life: Retains properties for 2 years in sealed original packaging
Recommended Uses
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Sealing valve guide bushings
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Repairing oil pans and thermostat housings
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Sealing pipes, hoses, and other flexible connections
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General engine and automotive maintenance
Technical Data
| Property |
Value |
| Operating Temperature
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–40 °C to +230 °C
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| Cure Mechanism
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Moisture‑activated
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| Flexibility
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Yes—resists thermal and vibrational stress
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| Chemical Resistance
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Lubricants, coolants, fuels, acids, alkalis
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| Surface Preparation
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Degrease prior to application
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| Storage
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2 years in sealed original packaging; cool, dry place
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