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Eastwood Fast Etch 16 Fluid Oz is rated 3.8889 out of 5 by 9.
Rated 1 out of 5 by from worthless used the product per the instructions to clean and protect some bolts from a project the rust turned black and the bare metal showed no "zink" coating at all. I tried multiple times on different metals and found the same results each time. DON'T WASTE YOUR MONEY. Eastwood Note: This product leaves a Zinc-Phosphate coating not to be confused with a Zinc plating. The Zinc coating as seen on new hardware is applied by an electroplating process that can not just be sprayed on.
Date published: 2013-02-08
Rated 4 out of 5 by from Good product! Protects bare metal I have been using this fast etch for a little while. On my 2nd spray bottle. I strip motorcycle fuel tanks and the chemical I use takes it down to the barest of conditions and after it's removed and rinsed, you can watch the rust (flash rust) form. With fast etch, it reverses and prevents this from happening again. I also use this to spray spots on my truck where I see rust forming on bolts and nuts on the frame. And other things around like my trailers. Solid product!
Date published: 2013-03-05
Rated 5 out of 5 by from Good Product I used this product on an old tractor gas tank. It left the tank looking great, and ready for the final sealer coating. After coating, I never had any more problems with the tank. I tried another similar kit, from a competitor, but the coating only lasted about 1 year and started peeling off, inside the tank! Spend a few more bucks and get this kit! No fun trying to get the cheaper coating out of a gas tank!
Date published: 2013-09-23
Rated 5 out of 5 by from Excellent Product This is a phosphoric-acid based product that leaves behind a zinc coating on steel and iron. Works great at neutralizing light to medium surface rust and is excellent for prepping bare metal prior to painting. Spray and leave on for 30-60 min; do not let it dry. Clean with Acetone or Wax/Grease remover. DO NOT USE WATER!! Heavier rust must be soaked for longer periods. Very pleased with results!
Date published: 2013-02-23
Rated 5 out of 5 by from Excellent Product - saves time and saves the part! I've used this product for years and it is an invaluable aid to my auto and motorcycle restorations. Saves time & $ by not having to have part blasted or spend hours with a wire wheel. Just clean the dirt and surface rust off and then apply product. Paint sticks no problem. Highly recommend!
Date published: 2014-01-02
Rated 5 out of 5 by from Excellent Product I purchased this product to try on my tractor engine block that did not have any paint on it. I applied fast etch per instructions and was pleasantly surprised at the outcome. I cleaned with pre a couple weeks later prior to painting and paint went on great. Highly recommend this product.
Date published: 2010-08-25
Rated 5 out of 5 by from Good product Bought 16 0z. bottle to see how Fast etch would work on a set of rusty MGA rocker arms. The answer is - GREAT! With no elbow grease, they cleaned up nicely. Used acetone to rinse them off, then LPS 2 to preserve their renewed beauty until I rebush & reface them.
Date published: 2010-07-24
Rated 4 out of 5 by from Product is effective Receny purchased as a reccomendation from another site. Glad I did. Sprayed on and rust disappeared. Few apps and my rotors are protected and rust free. Leaves an off white residue which does become neutral.
Date published: 2011-09-03
  • 2015-04-27T08:35CST
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I have old motorcycle. Tank not used for years. Can I remove or seal the rust on the interior of the tank

Asked by: Jwwalker
We have a specific gas tank sealer kit for your issue http://www.eastwood.com/gas-tank-sealer-kits.html
Answered by: SeanA
Date published: 2015-04-17
  • 2015-04-27T09:04CST
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Eastwood Fast Etch 16 Fluid Oz

Item #19416Z

Dissolves rust, leaves a protective zinc-phosphate coating...all in 1 step
Use in a well ventilated area.


Fast Etch™ effectively dissolves rust and leaves a protective zinc-phosphate coating...all in 1 time-saving step Just spray, brush, wipe or dip Fast-Etch onto your rusted parts and enjoy the double benefit of rust removal and a protective zinc-phosphate coating.
  • Excellent metal prep for powder coating and painting
  • Non-toxic, non-flammable and reusable
  • 1 quart treats 50-75 square feet of metal

More info...

About Eastwood Fast Etch 16 Fluid Oz

This specially formulated rust remover is a powerful, rust-fighting liquid created to meet the needs of auto restorers. It reaches even inaccessible areas, quickly dissolving iron oxide completely and leaving a zinc phosphate coating. Fast Etch can be sprayed, brushed, or used as a parts dip. It is non-toxic, non-flammable and reusable. This is not a primer. Treated surfaces should be wiped with PRE Painting Prep (10041 Z) or thinner before priming and painting.


Contains 16 fluid ounces (1 pt)., and covers about 20 square feet.


There is a minimal risk of Hydrogen embrittlement when using this rust remover. Bake de-rusted parts at 400 degrees F. for 3 hours if the minimal amount of hydrogen embrittlement is a concern. This rust remover works as a great alternative to abrasive blasting for rust removal.


19418ZP Fast Etch, 1-gallon jug
10041Z PRE Painting Prep


Eastwood Fast Etch is a Phosphoric acid solution that leaves behind a corrosion resistant coating. Removes rust in seconds to several hrs. depending on temp. and severity of rust. One pt. treats about 20 sq ft. Our rust remover works faster at 90 deg F than at 70 deg F. Fast Etch does not remove paint but may cause discoloring. Remove loose rust & degrease surface with PRE Painting Prep (10041 Z) before using rust remover. After removing rust, wipe down part with PRE Painting Prep (10041 Z) and top coat with Self Etching Primer (16014 Z) Aer. or (16009 ZP) Qt.

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