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Matthews' two-component 3.5 VOC Non-Chromate Etch Primer is designed for direct-to-metal surface application for aluminum and steel. This product etches itself into the surface to provide outstanding paint adhesion and corrosion resistance. It is a fast-drying pretreatment ideal for applications that require no surface filling. | New Federal Regulation Regarding the Use of Heavy Metals in 2011
• A new federal EPA regulation will come into effect in 2011 regarding the use of five heavy metals in spray-applied primers and topcoats within the sign industry.
• Beginning January of 2010, all users of these types of products are required to register with the EPA, and then by, January 2011, regulations regarding them will change. See www.epa.gov/ttn/atw/eparules.html
• This new product is similar to our 74770SP/74766SP, except that it has no heavy metals.
Non-Chromate Etch Primer Surface Preparation
• Aluminum and steel MUST be sanded and cleaned before this primer is applied.
• Surfaces should be cleaned with appropriate cleaner prior to applying primer.
• Sand aluminum with 220-320 grit abrasive; sand steel with 180-220 grit abrasive.
• Wash off residue and dry thoroughly before recleaning with appropriate systems substrate cleaner.
• Prime substrate after thorough cleaning.
Note: Applying 74350SP/74351SP over sandblasted substrate is not recommended.
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