7 Practical Maintenance Tips for Steel Anti-Theft Security Doors (Prolong Service Life by 10+ Years)

Daily maintenance tips (easy to operate)

1. Regular cleaning with soft cloth (once a week): Wipe the door surface with a dry soft cotton cloth to remove dust and sundries; for stubborn stains, use a neutral detergent diluted with water, and never use acid-base cleaners (will corrode the steel door paint and anti-rust layer).
2. Anti-rust treatment for key parts (once a season): Wipe the door frame, hinge, lock core and other metal joints with anti-rust oil or spray rust inhibitor, especially the welding parts of cold-rolled steel doors, which are the key rust-prone areas.
3. Lubricate the moving parts (once every 3 months): Drop a small amount of silicone lubricating oil into the hinge, lock core and door handle rotating part to avoid squeaking and inflexible opening and closing (avoid using butter, which is easy to stick to dust).
4. Avoid strong impact and scratch: Do not hit the steel door with hard objects, and avoid scratching the paint surface with sharp tools; if the paint surface is scratched accidentally, repair it with matching touch-up paint in time to prevent rust from spreading from the scratch.
5. Keep the door frame gap even: Check the gap between the door frame and the door leaf regularly. If it is loose or uneven, adjust the fixing screw in time to avoid the door leaf being deformed due to uneven force.
6. Prevent water accumulation at the bottom of the door: For the outdoor steel door, add a water stop strip at the bottom of the door frame to avoid rainwater accumulation soaking the bottom of the door leaf and causing rust.
7. Check the anti-pry hardware (once a year): Check the tightness of anti-pry bolts, lock plates and other security hardware. If there is loosening or wear, replace them with the original matching parts in time to ensure anti-theft performance.

Key reminder