MIL-COMM LOCK SAVER TW25B® SYNTHETIC LUBRICANT for All Locks and Hardware Excellent Cold Temperature Protection Also ideal for hinges, doors, valves, bolt threads, cables, chains and all abrasive parts. WORLD’S BEST!
Synthetic Lubricant for All Locks & Hardware

Lock Saver

The world’s best synthetic lubricant for locks — a TW25B® grease in an aerosol can. It penetrates deep, dries to a clean film, and protects every mechanism from wear, corrosion, and extreme cold.

  • −65°F to +450°F operating range
  • Salt-fog tested — no rust at 500 hrs
  • Dry film — won’t attract grit
  • Won’t bleed or gum up the cylinder
What Lock Saver does

Everything a lock needs, in one can

Dry-Film Protection

Unlike wet aerosol lubricants, Lock Saver is a grease that dries to a light, clean film. It lubricates deep inside the mechanism without leaving a tacky residue that pulls in dust, dirt, and lint.

Extreme Cold Performance

Rated for reliable operation from −65°F to +450°F. Padlocks, gate hardware, and exterior cylinders keep turning through the harshest winters instead of freezing solid.

Corrosion & Rust Defense

Repels water, salt, and grime while shielding dissimilar metals from galvanic corrosion — the slow killer of exterior locks, hinges, and padlock shackles.

Long-Lasting Wear Barrier

The PTFE-fortified TW25B® film bonds to metal and stays put through thousands of cycles, cutting friction and dramatically extending the service life of every mechanism.

Won’t Gum Up or Bleed

Engineered not to migrate, drip, or harden. No black graphite mess, no sticky oil that jams pins — just smooth, reliable action that lasts.

Odorless & Facility-Safe

Virtually odorless and formulated so it does not foster bacterial or viral growth — ideal for hospitals, schools, food service, and correctional environments.

Sizes & formats

Stock the truck and the bench

Shop / Service Size

Lock Saver Aerosol — 12.65 oz

Volume12.65 fl oz (380 ml)
Net weight8.6 wt oz (244 g)
Item #4DNH2

The full-size can for locksmith shops, maintenance carts, and high-volume institutional use. Includes precision spray straw for pin-cylinder access.

Toolbox / Travel Size

Lock Saver Aerosol — 6.1 oz

Volume6.1 fl oz (184 ml)
Net weight4.2 wt oz (118 g)
Item #4DNH1

The compact toolbox size that fits a service bag or truck door pocket. Same TW25B® formula, same precision straw — ready for the field.

Also available as a solid grease and as an oil in syringe applicators for pinpoint, no-overspray work.

Not just locks

Ideal for every abrasive moving part

Lock Saver earns its place on the cart because it handles far more than cylinders. Anywhere metal moves against metal, it cuts friction and holds off corrosion.

Locks & padlocksHinges & closersDoors & gatesValves & actuatorsBolt threadsCablesChainsPanic / exit devicesAll abrasive parts
MIL-COMM LOCK SAVER TW25B® SYNTHETIC LUBRICANT for All Locks and Hardware Excellent Cold Temperature Protection Also ideal for hinges, doors, valves, bolt threads, cables, chains and all abrasive parts. WORLD’S BEST!
MIL-COMM LOCK SAVER TW25B® SYNTHETIC LUBRICANT for All Locks and Hardware Excellent Cold Temperature Protection Also ideal for hinges, doors, valves, bolt threads, cables, chains and all abrasive parts. WORLD’S BEST!
12.65 oz & 6.1 oz
Get Lock Saver

Buy a can — or equip a fleet.

Individuals and small shops can order online today. Facilities, agencies, and distributors can request volume pricing, standing orders, and documentation such as SDS sheets.

  • Fast retail shipping on single cans & travel size
  • Case quantities & standing orders for facilities
  • SDS & spec documentation on request

Buy Lock Saver

For single cans and small quantities:

Bulk & Institutional

Buying by the case, setting up a standing order, or purchasing for a facility or agency?

Request a Volume Quote

Stop replacing locks that just needed the right lubricant.

Put a defense-grade synthetic to work on every mechanism you maintain.