The world’s choice for corrosion protection
GEOMET® 321 is applied to protect fasteners and many type of metallic
parts from corrosion and is used in many industries. It can be combined
with PLUS®, DACROLUB® or GEOKOTE® topcoats to provide a very broad
range of friction coefficients. It is the most widely used product in zinc
flake technology.

Thin dry-film, non-electrolytic
Water-based chemistry
Passivated zinc and aluminium flakes in a binder, patented chemistry
Chrome free alternative to DACROMET® 320
Metallic silver appearance

Characterictics and performance*
The coefficient of friction can be adjusted to targeted values ranging from 0.06 to 0.20
(ISO 16047) with NOF METAL COATING GROUP’s selected topcoats
It can be used with or without topcoat
No hydrogen embrittlement
Excellent assembly and multi-tightening behavior (with lubricated topcoat)
Good mechanical damage (test method D24 1312, USCAR 32) and chemical resistance to VDA 621-412) test
Performance maintained at elevated temperatures (up to 300°C)
Paintable coating
Electrical conductivity for most application processes
Bimetallic compatibility with aluminum
 

Coating Weight	Salt Spray Test （IS0 9227/ASTM B117）	CCT/ACT
> 24 g/m2	>240 hours without red rust >720 hours without red rust
>24 g/m2+ 面塗	>240 hours without red rust >720 hours without red rust	4  Cycles ACT 60 Cycles GMW 14872 60 Cycles SAE J2334
> 36 g/m2	>1000 hours without red rust

 

* Results may vary depending on substrate, geometry of parts and type of application processes

Application process
GEOMET® 321 can be applied by Dip-Spin, Spray, Dip-Drain-Spin using bulk or rack

Health and Safety
Aqueous dispersion
Complies with REACh
Complies with the 2011/65/EU and (EU) 2015/863 directives
Among our worldwide specifications
BMW (GS 90010)
CHRYSLER (PS-5873, PS-9666)
DAIMLER (DBL 9440)
FIAT (Capitolato 9.57513)
FORD (S438)
GENERAL MOTORS (GMW3359-GMW14)
IVECO (18-1101)
PORSCHE (PTL 7539)
RENAULT (01-71-002)
RENAULT Trucks (01-71-4002)
VOLKSWAGEN (TL245)
VOLVO Cars (VCS 5737,29)
ALSTOM (DTRF 150213)
BOMBARDIER (BT/CE-WN30-02)
CATERPILLAR (1E1675G)
JOHN DEERE (JDM F13)
KNORR BREMSE (N12005)
International standards
EN ISO 10683 - Fasteners: non-electrolytic zinc flake coatings

EN 13858 - Non-electrolytic zinc flake coatings on iron and steel parts

ASTM F1136 / F1136 M - Zinc/Aluminum Corrosion Protective Coatings for Fasteners