Bonderite C-Ic 79 Aero (Formerly Metal Prep 79)

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BONDERITE C-IC 79 AERO, formerly METALPREP 79, is a non-flammable multi-purpose phosphoric acid based cleaner and prepaint conditioner for most metals.

BONDERITE C-IC 79 AERO cleaning and conditioning chemical leaves the surface chemically clean and corrosion free.

BONDERITE C-IC 79 AERO can be used to deep clean and etch a metal surface prior to paint or to prepare a surface for a subsequent chemical coating like that produced by BONDERITE M-CR 1201 AERO on aluminum surfaces. Chemical coatings offer the best affordable substrate for both paint adhesion and underpaint corrosion resistance.


Brush Application:

For light oxidation and corrosion removal, dilute one part BONDERITE C-IC 79 AERO with two parts water.

For heavy oxidation and corrosion removal, dilute one part BONDERITE C-IC 79 AERO with one part water.


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Cleaned up aluminum as advertised

David G
August 27, 2017

This is very weak stuff when used on aluminum. I see it useful if the aluminum is already in good shape and you want to just make sure the surface is clean and ready for painting. If you have oxidation or heavy oxidation then this is of no use.

Doru N
September 14, 2018


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: What is the shelf life for Metal Prep No. 79?

This product has a 12 month shelf life from the day the container is opened, but no longer than 24 months from the date of manufacture total.

Q: How much coverage would 1 quart provide? Would dilution increase the coverage area? Does this product contain fluoride? What are the differences between this metal prep 79 and alumaprep 33?

For Bonderite C-IC 79 Acid (Quart) P/N# 09-01625: 400 ft2/quart Would Dilution increase the coverage area? Yes Does the product contain fluoride? No What are the differences between this metal prep 79 and alumiprep 33? Bondeirte C-IC 79 is a multi metal phosphoric cleaner and the Bonderite C-IC 33 is a phosphoric acid cleaner for aluminum only.

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