FUNCTIONALITIES
Corrosion protection
GEOMET® 720 alone or in combination with our range of topcoats passes the most
severe corrosion cyclic tests. It protects parts from rust even after mechanical damages,
such as stone chipping, thanks to its self-healing property. It also ensures bimetallic
compatibility with aluminum alloys. Its nominal thickness can be adjusted (from 6 to 15
µm and from 1 to 3 layers depending on the type of application process) to meet the
expected performance.
720-2000 h
(ISO 9227/ASTM B117)
* Results depend on substrate, geometry of parts and type of application processes.
Temperature resistance
Performances maintained up to 300°C.
Static friction
Static friction coefficient > 0.20.
Electrical properties
Conductive and offers perfect galvanic properties to avoid bi-metallic corrosion in most of industrial assemblies (cast iron, carbon steel and aluminum alloys).
Paintability
Excellent surface conditions for paints or additional coatings
No hydrogen embrittlement
Implemented via non-electrolytic application processes. This avoids the hydrogen embrittlement phenomenon that causes cracking of metals.
* COF is not measured only on base coat and not recommended.
APPLICATION
Processes
GEOMET® 720 is applied via bulk dip/spin, rack dip/spin, spray or electrostatic spray.
This variety of processes allows to coat all types of parts, even those requiring partial
coating, or with recessed and hollow surfaces. Moreover, they are non-electrolytic and
thus avoid the phenomenon of hydrogen embrittlement which causes cracking of metals.
TECHNOLOGY
Waterborne zinc flake
GEOMET® 720 is a patented technology composed of passivated zinc and aluminum
flakes in a binder. It has been developed to comply with the highest industrial
requirements and regulations regarding environment, health and safety. It is waterbased, chrome-free and nonylphenol-free.
Compliant with
REACH – Registration, Evaluation, Authorization and restriction of Chemicals
2011/65/EU and (EU) 2015/863 – Directive of the European Parliament on the restriction of
the use of certain hazardous substances in electrical and electronic equipment
ASTM F1136 / F1136 M – Zinc/Aluminum Corrosion Protective Coatings for Fasteners
EN 13858 – Corrosion protection of metals – Non-electrolytically applied zinc flake
coatings on iron or steel components
EN ISO 10683 – Fasteners – Non-electrolytically applied zinc flake coating systems
PDS/GEOMET-720/EN/2023-10-31/
