Professional-Grade Silicone for Engine and Vehicle Sealing Applications
Würth Engine Sealing Compound Silicone Special 180 is a high-quality, oxime-curing silicone rubber sealant developed for sealing engines, transmissions, and bodywork components. It creates a durable, flexible seal that maintains integrity even under heat, vibration, and exposure to oils or fuels.
Cold-Vulcanising , Permanently Elastic Seal
The compound cures at room temperature to form a cold-vulcanised silicone rubber that retains flexibility and elasticity over time. It effectively bridges surface unevenness and provides a long-term, leak-free joint seal, even under mechanical stress.
Reliable Long-Term Sealing Performance
Thanks to its excellent chemical and temperature resistance, the sealant remains stable in contact with engine oil, coolant, and hydraulic fluids. It withstands temperatures up to 150°C in continuous operation and short-term peaks of 180°C, making it ideal for use in engine and powertrain environments.
Clean Application and Controlled Curing
The compound does not run, sag, or thread-pull during application, ensuring neat bead placement on both horizontal and vertical surfaces. It achieves skin formation within 8-15 minutes, depending on ambient conditions, and cures at approximately 1.5mm per day under standard humidity and temperature.
High Flexibility and Vibration Resistance
Once cured, the silicone remains permanently elastic with a Shore A hardness of 18and elongation at break of 300%,. allowing it to absorb continuous movement and vibration. It maintains up to 25% movement absorption at temperatures up to 150°C, and 18% above that range, ensuring long-lasting joint stability.
Versatile Application Range
Suitable for a wide range of vehicle and machinery sealing applications including:
- Engines, cylinder heads, crankcases, oil pans, and radiators.
- Transmissions, differentials, and housing assemblies.
- Bodywork joints, lighting housings, weld seams, and indicator casings.
