GEOMET®
About GEOMET®
GEOMET®, developed as a chromium-free solution to the environmental regulations enacted by the government and automotive industry, is the next generation in the Metal Coatings International product line. GEOMET® is commonly specified in the wind turbine, automotive, heavy truck, marine, agricultural, construction equipment, and aerospace industries. GEOMET® is a water-based, VOC-compliant coating comprised of overlapping Zinc and Aluminum flake in an inorganic binder.
Four Way Corrosion Protection
- Barrier Protection: Overlapping Zinc and Aluminum flakes provide an excellent barrier between the steel substrate and the corrosive media
- Galvanic Action: Zinc corrodes to protect steel
- Passivation: Metal oxides slow down the corrosion reaction of Zinc and Steel to provide 3 times greater corrosion protection than pure Zinc
- Self-Repairing: Zinc oxides and carbonates migrate to the damaged area of the coating to actively repair the coating and restore barrier protection
Functional Benefits
o Thin - GEOMET® 321: 7-8 microns; GEOMET® 321 L: 8-10 microns
o Hydrogen Embrittlement Free Process - Coating application process does not require acid pickling or involve electroplating
o Bimetallic Corrosion Resistant - Aluminum flake eliminates the typical bimetallic cell of most Zinc coatings when mated with Aluminum or Steel
o Solvent Resistant - Inorganic nature causes it to be resistant to organic solvents
o Heat Resistant - Maintains corrosion resistance even following an intermittent heat shock
o Conductive - Concentration of metallic flake allows an electrical current to be passed to the substrate
Environmental Benefits
o CHROMIUM FREE - Does not contain ANY chromium (NO HEXAVALENT and NO TRIVALENT) in the liquid or on parts.
o Complies with the following regulations:
o Environmental Protection Agency (EPA)
o Occupational Safety and Health Administration (OSHA)
o EU Directive on End of Life Vehicles (ELV)
o EU Directive for Electrical Equipment (RoHS)
o NO TOXIC METALS - Free of nickel, cadmium, lead, barium and mercury
o WATER BASED - Free from dangerous solvents
o VOC COMPLIANT - Under EPA RACT requirements
Versatile Application
Matenaer applies GEOMET® the Rack application process (Dip-Drain-Spin, Spray) following an alkaline and/or mechanical cleaning cycle. Coating thickness can be varied by altering elements in the application processes. Due to its chemistry, GEOMET® has a wide cure window of 550°-625°F PMT (part metal temperature), for 15-20 minutes.
Available Colors
o Matt Silver
o Gloss Black
o Other colors available upon request
DACROMET® and GEOMET® are registered trademarks of Metal Coatings International, Inc.