LOCTITE® LB 8423

Features and Benefits

High-viscosity, easy-to-use dielectric grease for facilitating and improving engine tune-ups and protecting electrical connectors from voltage leakage.
Ideal for use on spark plug boots, distributor cap nipples, battery terminals, ignition coil connectors, and trailer electrical connectors, LOCTITE® LB 8423 is a high-viscosity silicone dielectric compound paste to facilitate and improve tune-ups. It also prevents voltage leakage around any electrical connector, thereby ensuring a strong spark in high-energy ignition systems. The compound also works amazingly well on rubber, plastic, and ceramic surfaces. It has great high-heat properties with non-compromised performance at temperatures up to 204°C (400°F), thus preventing the fusing of spark plug boots to the spark plug itself.
  • Resistant to corrosion
  • Facilitates and improves engine tune-ups
  • Prevents voltage leakage around any electrical connector
  • Operating temperature: -55°C to 204°C (-67°F to 400°F)
  • Works well on rubber, plastic, and ceramic surfaces 
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Technical Information

Color Translucent
Key characteristics Temperature: high temperature
Physical form Paste
Recommended for use with Ceramic, Plastic, Rubber