Red engine sealant

Würth red engine sealing compound is the ideal solution for sealing engines and crankcases subjected to extreme temperatures. Thanks to its permanently elastic formulation, it guarantees an effective seal even after years of exposure to heat, vibrations and chemicals. Whether you're a professional mechanic or a DIY motorcyclist, you can rely on its exceptional heat resistance for your demanding work.

Technical characteristics of Würth engine sealing compound

- Excellent sealing capacity thanks to its permanent plastic properties (non-hardening)
- Guaranteed vibration resistance even after years of exposure
- No stretching of threads during application
- Will not run on vertical or downward sloping surfaces
- Withstands temperatures from -50°C to +270°C, and briefly up to +300°C
- Low thermal conductivity
- Does not chemically adhere to metals or other materials and prevents atmospheric corrosion
- Resistant to water, air, petrol, paraffin, many synthetic oils and lubricants, water/glycol and methanol compounds, antifreeze and fluorocarbon refrigerants
- Silicone-free
- Non-toxic

Professional, long-lasting, clean sealing performance

Unlike other products that harden or run, Würth red engine sealant remains flexible, even over the long term. It does not pull threads or chemically adhere to metals or plastics, which prevents corrosion and facilitates future dismantling.

⚠️ Warning: not suitable for sealing oil sumps.

Material combinations :

1. Metal - metal

2. Metal - plastic

3. Plastic - plastic

NSF registered, Class P1, No. 151822

Thanks to its stable texture, it will not run, even on vertical or inclined surfaces, and is resistant to vibration, air, water, fuels (petrol, paraffin), synthetic oils, methanol, antifreeze or fluorocarbon refrigerants.

Dangerous product. Observe safety precautions. This product is an explosive precursor within the meaning of REGULATION (EU) 2019/1148; consult the Würth website for more information.

Würth, a benchmark of excellence for over 75 years

Based in Erstein (67150), Würth France is a brand renowned for its expertise in professional assembly and fastening products. With this red engine gasket paste, Würth offers a highly technical product designed to meet the most demanding standards of industry and motorcycling.

For other engine maintenance solutions, explore our engine mechanics category or discover our selection of maintenance products for all makes of motorbikes.