| Color | Grey, Silver | 
| Cure Type | Heat Cure, Room Temperature (Ambient) Cure | 
| Key Characteristics | Flammability: Non-Flammable, No Mix, Non-Toxic, Solvent Free, Temperature: High Temperature, Water Based | 
| Number of Components | 1 Part | 
| Physical Form | Putty | 
Extreme temperature, silicic acid, water-based repair putty that withstands environments up to 2,000 °F (1,000 °C).
LOCTITE® MR 2000 is a silver gray, extreme temperature, silicic acid, water-based repair putty that withstands environments up to 2,000 °F (1,000 °C). It is an environmentally non-toxic, water-based compound which is non-flammable and contains no solvents or volatile compounds. It can also be used in automotive exhaust applications, in headers, manifolds, catalytic converters and exhaust ports.