Vibra-TITE 131 Permanent Strength Threadlocker is a product designed to provide medium-high strength threadlocking where controlled torque / tension is required. Material lubricates during assembly, securing parts with medium-high strength retention allowing disassembly when required. Best for applications where parts require locking strength but may need to be disassembled. Vibra-TITE 131 resists vibrational loosening however if used on large diameter bolts or where there is a long engagement of the fastener, the application of heat may be required for removal. Ensure parts are clean, dry and free from oil and grease before use. Product is normally hand applied from the bottle onto threaded parts. Fixture Speed with Primer is