Our coated steel panels have successfully gone through 13,000 hours of Salt Fog Exposure (ASTM B 117) tests, and our coated aluminum panels have gone through over 10,000 hours. 5,000 hour is the maximum testing hours according to ASTM standards. We've stopped the tests since we saw no hope of destroying the panels and the results are impressive enough and we could save some funding by stopping the tests.

Tensile adhesion (pull-off strength) was measured in accordance with ASTM D 4541 following 1,100 Hours of Cyclic Weathering and 8,372 hours of salt fog exposure test. Adhesion by Tape test (ASTM D 3359) was performed after 8,372 hours of salt fog exposure.

All our tests and result data used below are provided by KTA-Tator of Pttsburgh Pennsylvania, a wellknown American Association for Laboratory Accreditation (A2LA) approved Independent testing lab with over 60 years of experiences.

Results

Blistering and rusting are rated on a scale of 0 to 10.    A "10" indicates no blistering or rusting or less than 0.01% of rust observed. After meticulously scratched off the black corrosion product, the undercutting appearing to be even narrower than the reported results displaying on this page.

Below are salt fog test (ASTM B 117) results over 5,000 hours.

Below are photographs for salt fog test (ASTM B 117) results over 8,372 hours.

P7 after 8,372 hours Salt Fog Exposure (coated CRS panel)	P8 Adhesion Test after 8,372 hours Salt Fog Exposure.  Pull-Off Test: (the three circles)  Tape Adhesion Test (the three cross marks)

Adhesion by Tape Test (ASTM D 3359) results after 8,372 hours of salt fog test, rated on a scale of 0 to 5 with 5 being the best:

Adhesion test for pull-off strength (ASTM D 4541) results after 8,372 hours of salt fog test (Good Painting Practices (by SSPC) says 200 psi or better is considered good adhesion.):

Adhesion test for pull-off strength (ASTM D 4541) results after 1,100 hours of cyclic weathering test:

ID	Pull Stub	Pull-Off Strength (psi)	Location of Break	Average Pull-Off Strength (psi)
1	A	611	100% cohesive failure within primer	652
	B	734	80% cohesive failure within primer, 20% glue failure
	C	611	100% cohesive failure within primer
2	A	673	80% cohesive failure within primer, 20% glue failure	812
	B	1009	100% cohesive failure within primer
	C	754	30% cohesive failure within primer, 70% glue failure
3	A	815	70% cohesive failure within primer, 30% glue failure	849
	B	877	90% cohesive failure within primer, 10% glue failure
	C	856	100% cohesive failure within primer

Cyclic Weathering and More Salt Spray Exposure data:

Test Name	Hours	Metal	Blistering	Rusting	Undercutting
Salt Spray Exposure	5,000	Steel	10	10	<1 mm
Salt Spray Exposure	3,000	Aluminum	10	10	<1-1mm
Salt Spray Exposure	4,500	Aluminum	10	10	0 mm
Cyclic Weathering	5,000	Steel	10	10	4 mm
Cyclic Weathering	3,000	Aluminum	10	10	0-1 mm
Cyclic Weathering	6,500	Aluminum	10	10	0-<1 mm

Photographs

Below are pictures of sample panels taken after the tests. Click images to see enlarged views.

Salt Fog Exposure & Cyclic Weathering

 

Salt Fog Exposure on coated cold roll steel (CRS) panel after 5,000 hours exposure. The incision line area was scraped before picture taking.	Salt Fog Exposure on coated cold roll steel (CRS) panel after 1,000 hours exposure. Scraped afterward. The incision line area was scraped before picture taking.
Salt Fog Exposure on coated cold roll steel (CRS) panel after 2,000 hours exposure. The incision line area was scraped before picture taking.	Salt Fog Exposure on coated cold roll steel (CRS) panel after 2,000 hours exposure, before being scraped .
Salt Fog Exposure on coated aluminum panel after 3,000 hours exposure. The brown sparkles are rust splashed from steel panels.	Cyclic Weathering on coated aluminum panel after 3,000 hours exposure. The brown sparkles are rust splashed from steel panels.
Salt Fog Exposure on coated aluminum panel after 4,500 hours exposure. The brown sparkles are rust splashed from steel panels.	Cyclic Weathering on coated aluminum panel after 6,500 hours exposure. The brown sparkles are rust splashed from steel panels.

Adhesion Tests

1) ASTM D 4541: 652 psi average after 1,100 hrs of cyclic weathering test	2) ASTM D 4541: 812 psi average after 1,100 hrs of cyclic weathering test

 

Our Environment-Friendly Anti-Corrosion Coating Technology

Conducting polymer can be used as corrosion inhibitor was stated in 2000 Nobel Chemistry Award. In the past couple decades, many companies and organizations have tried to develop conductive polymer as a heavy-metal free and "smart" anti-corrosion pigments, and hundreds of patens have been filed on this topic. Recently, AnCatt Inc. utilized new concept combining with our unique conducting polymer (polyaniline) dispersion eventually brought this dream into reality.

We are introducing the Environmentally Friendly High Performance Anti-corrosion Coating Technology, which does not employ conventional toxic/carcinogenic heavy-metal anti-corrosion pigments such as chromates and lead compounds, not even less toxic but sacrificial zinc/zinc compounds while providing heavy-duty corrosion protections to a wide range of metals including zinc and aluminum. Our technology provides an excellent solution to the urgent needs of Hexavalent Chromium-free anti-corrosion coatings for aluminum and its alloys. For steels, our technology provides a smarter solution with higher effectiveness, friendlier to the environment, scratch tolerant/self-healing, lower cost, and much longer performance life. Currently we are seeking partners to licensing/commercialize this new technology. Read more about the features, specifications, and usages of this coating technology.

If you are interested in our anti-corrosion technologies or having questions/comments, please Contact Us.

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