GLUEDEVIL THREADLOCKERS are available in a variety of different grades which are color coded to enable the consumer to be able to differentiate from one threadlocker to the next. GLUEDEVIL RED THREADLOCKER will permanently lock bolts and nuts upto 3/4. Aimed at extreme harsh environments and chemical conditions. Recommended for holding tight grade 5 and 8 fasteners. Safeguards threads from rust and corrission. Removable with hand tools and localized heating. Temp range -65 to 300 degrees. Cure speed 30 mins. Full 24hrs.