Fasteners may be the smallest components in an assembly, but they carry the greatest
responsibility. A corroded bolt, seized nut, or failed screw can compromise the performance of
an entire system. That is why selecting the right corrosion protection coating
is not a finishing choice, it is a critical engineering decision.
ENGINEERED FOR MODERN FASTENER PERFORMANCE
Conventional coating technologies often struggle to meet the durability, compliance, and
precision demanded by today’s automotive and industrial sectors. In high-strength fasteners,
the risk of hydrogen embrittlement can lead to hidden structural failures,
especially in
demanding applications.
GEOMET® addresses these challenges directly: a non-electrolytic process that eliminates hydrogen embrittlement risk while delivering corrosion performance that meets the specifications of global automotive and industrial OEMs.
Developed by NOF Metal Coatings, Japan, GEOMET® is a high-performance water-based
film
coating system designed for superior corrosion resistance and long-term
fastener durability.
The coating combines zinc and aluminium flakes to create a highly effective barrier against
moisture, chemicals, and harsh environmental exposure while maintaining precise thread
tolerances.
Why GEOMET® Outperforms Conventional Coatings
Thin and uniform film coating thickness (6–15 µm)
Exceptional salt spray test performance up to 2000 hours
Eliminates the risk of hydrogen embrittlement
Advanced anti rust coating performance for aggressive environments
GEOMET® significantly reduces the risk of galvanising corrosion by creating a uniform
zinc-aluminium barrier that protects fasteners even in highly aggressive
industrial and
coastal environments.
Superior corrosion resistance with controlled friction properties
Ideal for automotive, infrastructure, renewable energy, and industrial applications
Applications:
Automotive Fasteners · Wind Turbine Bolts · Solar Structures · Railways · Construction
Hardware · Industrial Fasteners
WHAT THIS MEANS FOR FASTENER MANUFACTURERS
GEOMET® is more than a coating system, it is a business advantage.
Global OEMs increasingly specify advanced zinc flake coating systems because
they demand:
Higher corrosion resistance
Lightweight protective coatings
Reliable torque and friction performance
Environmental compliance
Long-term durability without hydrogen embrittlement
As India's exclusive partner for NOF Metal Coatings' GEOMET® system, Growel enables fastener manufacturers to adopt globally approved coating technology and secure high-value OEM contracts.
GROWEL’S ROLE: COMPLETE TECHNOLOGY & PROCESS SUPPORT
Growel is the exclusive India partner for NOF Metal Coatings’ GEOMET® system. We provide
complete support to help manufacturers successfully implement advanced coating technology.
Our Support Includes:
Pilot plant and application training
Complete technology transfer for zinc flake coating systems
Equipment selection and process setup guidance
On-site technical assistance during commissioning
Long-term process optimisation support
Guidance for achieving industry-approved salt spray test standards
THE GROWEL ADVANTAGE
With over 70 years of expertise in industrial surface finishing and a long-standing
partnership with NOF Metal Coatings, Growel has helped build advanced coating capabilities
across India’s automotive and engineering supply chain.
Whether you are upgrading from conventional zinc plating or HDG, or establishing a new GEOMET® line, Growel provides the chemistry, technology transfer, and technical support to get you there.
