GM Eliminates Solvent from Suppliers’ Paint Process
Adhesion alternative is energy efficient and practically emission free
Aug 24, 2011 10:00 AM ET
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(3BL Media / theCSRfeed) Detroit, MI - August 24, 2011 - General Motors is introducing a flame treatment technology that lets paint stick to plastic vehicle parts like instrument and door panels without using primers that contain solvents and can foul the air.
The use of solvents in paint primers is an industry-wide challenge. GM is committed to reducing emissions throughout its manufacturing operations and supply chain, so it manages traditional solvents through recycling, conversion to energy and superheating the gases to break them down. However, these are energy-consuming, costly processes. This flame treatment technology instead uses an energy-efficient, robotic system to create a molecular change to the surface of the plastic, making it bond with the paint. The process eliminates the need for an adhesion-promoting primer. GM evaluated the new technology as a total business case. Not only does it improve efficiency since it’s faster than spraying primer, but the capital expense pays for itself in less than four months. It’s being used on the Chevrolet Cruze, Sonic, and Volt. By using it on the Cruze, for example, GM suppliers:-
Reduced solid and liquid waste (filters, cleaners, solvents and coatings) from 48 tons a year to less than one.
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Decreased air pollutants from 810 tons a year to 80 tons a year.
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Eliminated landfill waste like paint sludge and painted scrap material from 25 tons to nearly zero.