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Waterborne Coatings

Waterborne Coatings. Waterborne Coating Use. Europe U.S. Original Equipment Manufacturing Refinishing California Primers European cars Eastern U.S. – base-coats Regulatory driven – air quality Shops converting from high VOC coating products have challenges

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Waterborne Coatings

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  1. Waterborne Coatings

  2. Waterborne Coating Use • Europe • U.S. Original Equipment Manufacturing • Refinishing • California • Primers • European cars • Eastern U.S. – base-coats • Regulatory driven – air quality • Shops converting from high VOC coating products have challenges • Color matching for U.S. colors • Coating application and drying for best finish quality

  3. Advantages • Less toxic • Solvent paint may contain xylene, toluene, ethyl benzene, MEK • Waterborne paint may contain glycol ethers, propanol • Lower VOC • Alternative to TBAC and PCBTF to reduce VOC formulation in coatings • May cost less • No additives, reducers • Thin with water if needed • Less reaction with substrate • Longer pot life • Water-based clean-up

  4. Equipment Changes • Corrosion resistant spray guns • Drying and curing technology • Spray booths with heat & turbulence • Requires very clean spray booth • Infrared and uv lamps for primer • Job scheduling • Plan for increased drying time

  5. Retro-fitted air movement devices for curing and drying Place in 4 corners of spray booth

  6. Regulatory Impacts- Air Quality • CARB adopted suggested control measure (SCM) to improve consistency and enforceability of regulations • Reduce VOC in primer and top coat by 2009 • Primer-sealer, single stage coatings by 2010 • SCAQMD adopted December 2005 • Effective date July 1, 2008, clear and color coats • SJVAPCD proposed – workshops January 2006 • Rulemaking updates http://www.arb.ca.gov/coatings/autorefin/scm/rulemaking.htm

  7. Waterborne Coatings • Future for refinishing industry • Expect coatings industry to develop more products to meet needs • Shops will need to upgrade spray booth equipment for faster production • Allow time for conversion to waterborne • Manufacturer training for painters • Work with new coatings and equipment in each shop to achieve best results

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