Geomet Coated Fasteners

Stud Bolts, Nuts, Screws, Threaded Rod & Washers

GEOMET® is a proprietary water-based family of products containing metal oxides, metallic zinc and aluminium flakes. The zinc and aluminium platelets align in multiple layers forming a metallic silver film. Applied as a liquid, the coating is totally inorganic after thermal curing.
GEOMET® coating systems, which include silicate sealers - black and coloured topcoats - are applied to a variety of fasteners to provide corrosion protection to ferrous metals including powdered metal products.

Application process

GEOMET® 321,GEOMET® 500,GEOMET® 720 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 2000/53/CE and 2002/95/CE directives

GEOMET 321/500/720 Characterictics & Performance

GEOMET 321

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 (test VDA 621-412) resistance
Performance maintained at elevated temperatures (up to 300°C)
Paintable coating
Electrical conductivity for most application processes
Bimetallic compatibility with aluminum

GEOMET 500

Coefficient of friction: 0,15 ± 0,03 (ISO 16047)
No topcoat required
No hydrogen embrittlement
Excellent assembly and multi-tightening behavior
Good mechanical damage (test method D24 1312, USCAR 32) and chemical (test VDA 621-412) resistance
Performance maintained at elevated temperatures (up to 300°C)
Paintable coating
Electrical conductivity for most application
Bimetallic compatibility with aluminum

GEOMET 720

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
Can be used with or without topcoat
No hydrogen embrittlement
Excellent assembly and multi-tightening behavior (with lubricated topcoat)
Performance maintained at elevated temperatures (up to 300°C)
Paintable coating
Electrical conductivity for most application processes
Bimetallic compatibility with aluminum

GEOMET 321/500/720 Corrosion Resistance

Grade	Coating Weight	Salt Spray Test (IS0 9227/ASTM B117)	Cyclic Test
GEOMET 321	24 g/m2	240 hours without white rust	-
	24 g/m2	720 hours without red rust	-
	24 g/m2 + topcoat	720 hours without red rust	4 cycles ACT 60 cycles GMW 14872 60 cycles SAE J2334
	36 g/m2	1000 hours without red rust	-
GEOMET 500	24 g/m2	240 hours without white rust 720 hours without red rust	25 cycles APGE
GEOMET 500	36 g/m2	240 hours without white rust 1000 hours without red rust	6 cycles ACT 50 cycles APGE
GEOMET 720	24 g/m 2	> 1000 hours without red rust	-
GEOMET 720	> 24 g/m 2 + topcoat	> 1500 hours without red rust	-

GEOMET 321/500/720 Specifications