Master Lock 2311 (11oz) Lock Lubricant with PTFE is the ideal lubricant for multiple lock applications including padlocks, door locks, automotive, marine and multipurpose applications. The PTFE formulation cleans the lock components while lubricating and leaves behind a protective shield against dust, dirt, salt, moisture and other corrosive materials. This unique formulation is excellent for locks used within a wide temperature range & will help de-ice pre-lubricated locks. Keep your locks operating like new in any environment – snow, rain, freezing temperatures, marine, extreme heat. NSF registered for incidental food contact (H1) for use in and around food processing areas. Non-toxic – food safe, people safe, environmentally safe. Helps de-ice pre-lubricated locks. Wide temperature range of -40°F to 500°F.