Description
999 Silicone—most commonly recognized as ABRO Grey 999 RTV Silicone Gasket Maker—is a heavy-duty, high-performance engine sealant. It is widely used in automotive repairs to form leakproof, “formed-in-place” gaskets on high-stress mechanical parts. [1, 2, 3, 4]
Key Specifications & Features
- High-Temperature Resistance: Effective in extreme environments, withstanding continuous temperatures up to 650°F (343°C). [1, 2]
- Chemical Resistance: Resists automotive fluids such as engine oil, transmission fluid, coolant, and antifreeze. It will break down under direct exposure to gasoline. [1, 2, 3]
- Sensor-Safe & Non-Corrosive: Formulated with a neutral cure system, meaning it has a low odor and will not damage delicate vehicle emissions electronics like oxygen
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