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Home  > Raw materials & technologies  > Applications  > Protective & Marine coatings  > Chromium-free coatings technology eliminat...

Sunday, 15 September 2019
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Raw materials & technologies, Applications, Protective & Marine coatings

Chromium-free coatings technology eliminates toxicity

Tuesday, 4 February 2014

A patented coatings technology protects aluminum alloys, such as those found in vehicle and ship parts, or in vehicles made entirely from aluminum.

The new technology will be used in primers for the shipbuilding and automotive industries

Source: Eric Gevaert -  Fotolia.com

The new technology will be used in primers for the shipbuilding and automotive industries

Source: Eric Gevaert -  Fotolia.com

The North Dakota State University Research Foundation (NDSU/RF) has concluded a license agreement that gives Elinor Specialty Coatings exclusive rights in marine and automotive markets to further develop and commercialize the coatings technology.

Cr(VI) can contaminate the environment

The magnesium-rich technology will be used in primers marketed to both the military and civilian auto and shipbuilding industries under the trade names "Aluma45-MTM” and "Aluma45-ATM”. According to the producer, the coatings will provide viable alternatives in manufacturing and maintenance, without the toxicity of hexavalent chromium Cr(VI). The products are designed to be applied over chromium-free pre-treatments or bare metal, eliminating Cr(VI) entirely from the coating system. Whether on vehicles or vessels, corrosion is a culprit costing companies substantial dollars. The toxic substance, hexavalent chromium Cr(VI)  prevents corrosion, but can also contaminate the environment and contribute to cancer.

Technology results in lower fuel consumption

The protection allows longer periods between maintenance cycles, while eliminating the toxic work conditions and long-term hazmat storage dilemmas of Cr(VI) for companies or command units. Potential benefits of the new technology include:  reduced costs by eliminating the need for mandatory extra control measures designed to reduce exposure to chromate; and potential lower density than chromate primers, thus reducing weight and resulting in lower fuel consumption.

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