Tested: Tech-Cote ACS TC200 corrosion protectant review

Tested: ACF-50 corrosion protectant review


Date tested: April 2018 | Price: £10.75 for 400ml can | www.bandcexpress.co.uk


Tech-Cote ACS (Anti Corrosion Spray) TC200 was developed in response to the higher cost of some other corrosion protectants. It comes in an aerosol can that gives a powerful, fine mist of the product, making it very easy to apply to your bike, and drive into the more hidden areas.

Because it starts to dry as soon as it contacts air, it’s not available in a bottle for use with a compressor and paint gun. While it does ‘set’ quite quickly, it doesn’t go hard so won’t crack.


Tech-Cote ACS TC200 performance

It was a very impressive 19 weeks before the steel plate coated with ACS TC200 showed more than 20% coverage of rust; it far exceeded ACF-50, and was beaten only by XCP Rust Blocker.

Rinsing the plates every day with the relatively aggressive fan pattern on the hose did appear to accelerate the degradation of this product, but until that point it was really too close to call between it and XCP Rust Blocker. Once washed with a 15% solution of Surfex HD cleaner, the rust spread significantly.

We have seen test results that saw ACS TC200 give relatively poor results, but because it flashes off quite quickly it’s very important that, in any test, it’s applied in the same way as it would be on your motorcycle – by spraying directly onto the surface, and not for instance being decanted into another container before the test plate is dipped.


Tested: ACF-50 corrosion protectant review


Fresh steel plates were cut to size, folded at 90° (to give vertical and horizontal surfaces), then thoroughly cleaned before being coated with each product, as per the manufacturer’s guidelines. The test was carried out indoors, with a reasonably regulated temperature. For more information on how the test was done, please watch the video below.

Morning and night, the plates were each sprayed with a 5% solution of road salt in water, then consistently rinsed off at the end of each week with a hose head set to a shower pattern.

After eight weeks, the hose head was switched to a more aggressive fan spray, and the plates were rinsed with a consistent five full strokes from a distance of one inch each time.

After 14 weeks, any products that hadn’t completely corroded were hosed off every evening.


Tech-Cote ACS TC200 stickiness test

Once sprayed on and left to dry for 24 hours, ACS TC200 leaves a matt finish, with no visible colour. It’s a brown liquid, but any excess can be easily thinned down by wiping with a clean rag.

While it dries to a gel-like consistency, in our test we found it retained as much sand when dusted on as the others, and an equal amount as XCP and SDoc100 was left after rinsing. When hosed with the fan pattern, as in the rust testing, all the sand was removed.



Metal plates were cut to size then thoroughly cleaned, before each product was applied as per the manufacturer’s instructions.

The plates were left indoors, laid horizontally for 24 hours, then each was dusted with fine sand. The plates were tapped vertically to knock any excess sand off, before being assessed for stickiness.

Next, each plate was rinsed with a hose head set to a shower pattern, and the amount of sand left was assessed.

Finally, each plate was hosed with five full strokes from a distance of one inch using a more aggressive fan pattern, before being checked for any remaining sand. Both rinsing cycles represent the methods used during corrosion testing.


Tech-Cote ACS TC200 safety on rubber

After three months, our test O-ring was encased in a gel of TC200, but when removed and gently cleaned it was found to have no damage, swelling or deformation at all.

Brand new O-rings kindly supplied by motorcycle parts specialist B&C Express were put into test tubes containing each product. These were left for three months to soak, before the O-rings were carefully removed and assessed for any swelling, cracking, or other changes to their structure.

Please note that we do not recommend using these products as chain lubes – we’re just using the O-rings as a consistent material.


Tech-Cote ACS TC200 review verdict

Tech-Coat ACS TC200 offers excellent performance for a very reasonable price. It outshone every similar product except XCP Rust Blocker, but the result were close.

It would appear that TC200 is more susceptible to washing than XCP, but given the duration of the test, it’s a close call; TC200 certainly offers some of the most efficient protection against rust for your motorcycle.


Group graph


The full list of products tested is as follows:

  • ACF-50
  • XCP Rust Blocker
  • Scottoiler FS 365
  • SDoc100 Corrosion Protectant
  • TechCote ACS TC200
  • Muc-Off Motorcycle Protectant
  • Original WD-40
  • GT85
  • Valvoline Multi Spray
  • Motorex Moto Protect

To read the reviews of any of these items, please click here.


Full timelapse of the test

John explains how the biggest ever corrosion test was done, and shows the entire process, from bare metal to fully corroded…

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