LOCTITE® 425 is a dark blue ethyl cyanoacrylate/aliphatic ester adhesive designed as a fast curing, low strength adhesive for locking metal and plastics fasteners. It is designed for pre- or post-application. Fixture speed can be increased by using a LOCTITE cyanoacrylate activator – e.g. LOCTITE SF 7113. It is typically used in applications with an operating range of -54 °C to 85 °C.