3.5 VOC Non-Chromate Etch Primer
Outstanding Paint Adhesion and Corrosion Resistance
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.
Features & Benefits:
- Does not contain any heavy metals
- Only requires one coat, saving on product usage
- 3.5 VOC compliant
- Fast-drying pretreatment—ideal for applications that require no surface filling.
- Compatible surfaces: aluminum and steel (not recommended for fiberglass)
- Available in gallon containers
- Easy mix ratio—same as current MPC etch primers
- Top coat after 60 minutes
- Theoretical coverage: 308 sq. ft. per ready to spray gal. @ 1 mil dry film thickness
- Provides excellent corrosion protection
- Can be directly coated with all Matthews topcoats
- Best sprayed through a 1.4-1.8 tip gun
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: Application over sandblasted substrate is not recommended
Federal Regulation Regarding the Use of Heavy Metals
- A federal EPA regulation came into effect in 2011 regarding the use of five heavy metals in spray-applied primers and topcoats within the sign industry.
- As of January 2010, all users of these types of products were required to register with the EPA. As of January 2011, regulations regarding these products went into effect. See www.epa.gov/ttn/atw/eparules.html for more information.
- 3.5 VOC Non-Chromate Etch Primer is similar to our 74 770SP/74 766SP, except that it has no heavy metals.