Thumbs 1
Thumbs 1
Thumbs 1


Select Size:
11 Oz Aerosol 20 Oz Spray Bottle 1 Gallon
Add to Wishlist


LPS 3 Premier Rust Inhibitor is a specially formulated long-term corrosion inhibitor protecting metal parts in inside storage for up to two years. When applied it forms a soft, transparent, waxy film sealing out moisture, air, acid, alkali fumes, and other corrosive elements.


  • Protects for up to 2 years indoors
  • Prevents rust and corrosion
  • Safe on all metals
  • Safe to use on rubber, fabric, plastics, and paints
  • Inhibits exfoliation and filiform corrosion of aluminum
  • Safe on all metals
  • NSF Certified: H2 Registration #129027 (Aerosol); #059849 (Bulk)
  • Acceptable for use in Canadian Food Processing Establishments
  • Penetrates to displace moisture


Appearance/Physical State: Cloudy/Liquid
Odor: Mild. Cherry
Melting Point/Freezing point: Not Available
Boiling Point/Range Aerosol: Not Available, Bulk: 320-392F
Vapor Pressure Aerosol: Not Available, Bulk 2.6 mm Hg @20C
Partition Coefficient: Not Available
Percent Volatile Aerosol: 63-82 %, Bulk: 78.45%
Flammability Limit: Lower 0.6, Upper 6%
Propellant Aerosol: Carbon Dioxide, Bulk: N/A
VOC Content Aerosol: 62.8%, Bulk: 75.58%
Color: Brown
Flash Point: Aerosol 64.4F, Bulk 104.5F
Relative Density: Not Available
Evaporation Rate: Aerosol - 151 (Ethyl Ether), Bulk: 0.2 (butyl acetate=1)
Vapor Density: Aerosol: Not Available, Bulk 4.8
Auto-Ignition Temperature: 446F (230C)
Viscosity: Aerosol-Not Available, Bulk: 20-550cP
Specific Gravity (water=1): Aerosol: 0.87, Bulk: 0.81
Temperature Range F(C): Not Available
4-Ball Weld Load: Not Available


  • Aircraft Fuselages, Battery Terminals, Cables, Chains, & Pulleys, Cargo Sections, Elevators, Metal Parts, Offshore Drilling Equipment, Outdoor Electrical Connections, Outdoor Equipment & Tools, Overseas Storage or Shipments, Pumps & Hose Assemblies, Interior Sections of Vehicle Doors
  • Customers Also Viewed
  • Frequently Purchased With
  • Related Items


Been using LPS 3 for almost 10 years. Best rust inhibitor money can buy. And best of all, it really does what is says it can do. Stays on and is not washed away by rain or slush.

September 11, 2020

Love this stuff. Has many uses from cable lube and protect-ant for my outdoor car hoist to clean and lube my motorcycle chain. Evaporates off and leaves a waxy lube protection.

December 6, 2019

Seems to be a great product. Iâm using it as a rustproofing on my new Silverado. Time will tell the longevity but it applies well and has good even coverage. I have since used it in 3 more vehicles. Hopefully it last through one winter.

October 21, 2019

I use Lps 3 to help prevent corrosion on automotive brake lines. Great product, but difficult to find in local stores.

Rick S
October 11, 2019

fantastic product. used it to undercoat my 2019 Silverado. time will tell the longevity. great service and fast shipping from aircraft spruce.

Jeff S
September 29, 2019

Great easy to use lubricant for all your aviation needs.

W. J
March 1, 2019

Product has protected our Bell 206 blades for over thirty years. Have never had a blade corrosion repair since I started wiping blades down weekly with LPS3. Shipping from Aircraft Spruce is a problem. Two of four gallons bottoms were deformed in shipment. They arent leaking, but dont want to stay upright.

Ronald M
April 5, 2018

Ok in certain applications. does not penetrate like corrosion x or acf-50. It is NOT a lubricant, it doesnt penetrate well and leads to messy, dirt attracting buildup. I wish people would not use it as a lube. My view is that it only seals things off and should be used thoughtfully as it will also seal things like moisture IN.

Mike H
August 15, 2019


Q: Does LPS 3 premier rust inhibitor meet MIL-C-16173 Grade 2?

Yes, it meets MIL-PRF-16173E Grade 2 Class 1. Please see the Approvals tab for additional spec info.

Q: Can LPS 3 be used as primer, directly on rusty surfaces, then painted over?

LPS 3 cannot be used in the manner described. It can be applied to a dry, rusted surfaces that has had any loosely adhered corrosion removed. It will not convert the rust but will halt further corrosion from occurring. It cannot be painted over.

Q: curious if LPS 3 can be a substitute for polishing and waxing my painted Cessna 182 external fuselage if applied frequently (every 2 weeks?). The aircraft lives outside in Hawaiis salty air and hot sun.

I believe it would be safe, but it is brown in color and could stain the paint. I would not recommend it for this application.

Q: Is it safe to spray this inside an aircraft engine cylinder if its going to be parked up for a while?

This product is a common use product, not aviation specific. It does not have a specific approval application guide. You would need to check your engine manual for storage procedures.