DACROMET®
About DACROMET®
DACROMET®, is the leading inorganic coating commonly specified in the wind turbine, heavy truck, marine, agricultural, construction equipment, and aerospace industries. A water-based, VOC-compliant coating, DACROMET® is comprised mainly of overlapping Zinc and Aluminum flake in an inorganic binder.
DACROMET® provides 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 - DACROMET®: 5-7 microns;
DACROMET® L: 7-9 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
o Provides Salt spray resistance of 1000 hours.
Environmental Benefits
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 corporation applies DACROMET® using 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. DACROMET® is cured at 610°F PMT (part metal temperature), which must be maintained for 15 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.