All coating materials used on Caltrans equipment shall be lead-free. "Lead-free" means that there shall be less than 300 parts per million (less than 0.03%) by mass of lead in the dry finished coating. Testing uses Atomic Absorption Spectroscopy by the EPA 7420 method and uses paint samples scraped to bare metal.
2.2 Hexavalent Chrome
All coating materials used on Caltrans equipment shall comply with Title 17 California Code of Regulations, section 93112 pertaining to content of hexavalent chrome.
2.3 Standard Tests
2.3.1 Film Hardness Test
The outcome of ASTM D 3363 "Pencil Hardness" test shall be at least a 2H rating.
The outcome of an ASTM SAE J-400 JAN85 Gravelometer test shall be at least 6 B topcoat to undercoat.
2.3.3 Forward Impact
The outcome of an ASTM D-2794 Forward Impact test shall be at least 50 inch pounds.
2.3.4 Ultraviolet Resistence
The outcome of an ASTM G-53 test shall be 70% gloss retention or higher.
Last Web Page Update 12/02/04