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Prekote) Surface Pretreatment

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QuartGallon5 Gallon55 Gallon275 Gallon Tote
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PreKote© a simple procedure that replaces the use of traditional chromate conversion coatings and the need for acide etches, solvent washes and other toxic processes. Small aircraft shops have also used PreKote© to successfully replace the use of chromate conversion coating pens for smaller repair areas. By eliminating the need for these additional processes, paint preparation time and cost can be reduced by up to 40%.

Approved for use by the Boeing Commercial Aerospace Group, Department of Defense and currently flying over 1,500 United States Air Force aircraft, PreKote© has proven consistent results with a variety of paints and primers. PreKote© can be used on a wide range of surfaces including aluminum, steel, magnesium, titanium, CRES, galvanized, composite and plastic surfaces.

Environmental, Health & Safety Reason for Using PreKote
The use of PreKote© does not trigger categorical industrial user status under the Environmental Protection Agency's metal Finishing effluent guidelines. This makes PreKote© easy to dispose.

PreKote© use also eliminates the need for forced air containment suits which are required by OSHA when using traditional chromate conversion coatings. Simply rain gear and goggles/face shield are all that is required.

California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • Non-Hazardous
  • Non-Flammable
  • CFC Free
  • Odorless
  • Privides Corrosion Protection
  • Readily Biodegradable Upon Disposal
  • Non-Toxic
  • Chrome Free
  • ODS Free
  • Enhances Paint Adhesion
  • Substantial Process Cost Savings


Easy to use, not harmful to the environment, the primer bonded very well. Whats not to like?

Kevin B Verified Purchase


May 29, 2023

Works as advertised, spray on, rinse off

Brian M Verified Purchase


January 26, 2023

1 quart of Prekote came in a box with a sprayer that screws into the bottle. The sprayer didnt work. Price had almost doubled from that quoted in my 2-year old A.S. catalog. With the $20 shipping this stuff was about three times the original price. The Prekote was easy to use though, a lot easier than Alumiprep followed by Alodyne.

Robert W Verified Purchase


July 29, 2022

Too early to tell. Job is complete and well see if it blisters/peels.

Hans R Verified Purchase


February 17, 2022

Works as described- my first time using this product. It did an excellent job of prepping my aluminum boat for paint. My order arrived quickly, I will buy from Aircraft Spruce again.

Rick M Verified Purchase


September 14, 2021

Used this on some ruddervators for a super vee that is being put back together. Looks like good adhesion to the old magnesium. Will see how they hold up.

Richard B
July 16, 2020

Great Producct ! I couldnt believe how much oxidation came off the parts. I sprayed it on then scrubbed with maroon scotchbrite in two directions and rinsed it off. Very ECO friendly and safe to use. Forget the alodine etc. AKZO works amazingly well with this simple prep.

Thomas R
February 18, 2020

At a point in construction where gear legs needed to be primed/painted. Considered the old Alumiprep/Alodine, even went so far as to purchase alumiprep. But the idea of using Chromate did not appeal to me. Researched this and felt that this would be appropriate. The preparation was fairly easy. Had the legs painted at a local body shop and they came out very nicely. Will need to see how they last in the long run, but now very satisfied.

Alan E
June 4, 2019

I'm a aircraft painter. I used prekote to replace alodine treatement. It works very well.

June 10, 2015

Works great, so far seemed to have worked. Used this on bare aluminum in my Cessna and washed off with water then primed and painted. Only problem is I bought too much for what I needed to do. Also, the expiry date seems off since my container was leaking a little through cap because it did not have a breakable seal under cap, allowing air to enter? Even pancake syrup has a breakable seal! Hence how long rrally is the expiry date if product is not sealed when it arrives? Five star if somebody can explain the expiry/non sealed container for me.

Justin K Verified Purchase


July 3, 2021


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: How much PreKote do I need to treat my aircraft?

The volume of PreKote SP required to treat a given surface varies with the dispensing method. Higher volume dispensing systems (drum pumps) used for treating an entire aircraft will use one gallon of PreKote SP to treat 120–160 square feet. Low volume trigger spray bottles will yield 200–300 square feet per gallon of PreKote.

Q: What primer is recommended for use with PreKote?

Per the PreKote web site, PreKote has been proven to be compatible with any epoxy or urethane primer, or top coat, from major manufacturers, and can be used on any part that will subsequently be primed.

Q: What is the manufacturer's part number?

The mfg @ for the quart size is 065-1002.

Q: What is the shelf life of the Prekote surface treatment?


Q: Please provide an SDS for this Prekote Surface Pretreatment material?

We have added the SDS to the Documents section of the web page.

Q: So should I use PreKote and then Alodine 1201 before priming or is using only one or the other all that is required?

You would use one or the other. Alodine is a different process.

Q: Can I use PreKote on cast magnesium wheels?

Yes, PreKote may be used on magnesium.

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