| Color | Grey | 
| Key Characteristics | Dry Time: Slow Dry Time, Flexible, Mix: No Mix Required, Solvent Based, Viscosity: High Viscosity | 
| Number of Components | 1 Part | 
| Physical Form | Liquid | 
| Specific Gravity | 1.1 g/l | 
| Specific Gravity Temperature | 25 °C | 
Gasket sealant paste with resin, isopropanol and fillers. It remains pliable and flexible and seals flanges, threaded connections and fasteners.
LOCTITE® NS 5109 (known as LOCTITE GASKET MAKER HIGH TEMPERATURE) is a gray, solvent-based, slow drying, viscous gasket sealant paste with resin, isopropanol and fillers. It remains pliable and flexible and is designed to seal flanges, threaded connections and fasteners at temperatures from -49 °F to +599 °F (-45 °C to +315 °C). It can be effectively applied to cork, paper, plastic and metal surfaces.