What does Schlage recommend as lubricant for front door deadbolt locks and door handle mechanisms?
Schlage recommends a dry graphite lube. Dry graphite lube is a high lubricity graphite that adheres to most surfaces with minimum surface preparation. It air dries rapidly at room temperature to provide clean, long-wearing lubrication.
Ideal where a dry lubricant is required or where petroleum products must be avoided
Adheres with minimum pre-treatment
Effective in extreme temperatures
Dries rapidly at room temperature
The frequency of lubricating a lock cylinder depends on usage and environment. Lubricating every five years is adequate under normal conditions and use. Lubricate a cylinder if the key insertion/extraction becomes rough or more difficult over time. The following conditions might affect the frequency of application:
High usage doors with frequent keyed entry
Dusty environments particularly those near construction, and along dirt roads where dust and dirt might be common in the air
Coastal areas and areas of high corrosive environments; pool areas, etc.
Extremely low key usage on doors on the exterior; exterior storage sheds, etc.
Indoor applications typically require less maintenance than locks exposed to harsh exterior environments