Sealing Coatings

Nyseal® Under-Head Coating

Nyseal® is a coating for screws or other threaded components that can be applied directly under the head, the flange or on the run-out of the thread. It provides excellent sealing properties and eliminates the need for additional washers, seals or O-rings.

How Nyseal® Works

The green plastic coating is melted directly onto the bottom side of the screw head. This provides excellent sealing against liquids and gases. At the same time, this coating acts as a buffer for sensitive surfaces of the workpieces to be screwed together, protecting them from damage.

Nyseal® Advantages

Superior Performance

Nyseal® provides excellent sealing properties.

Cost-Effective

No additional sealing elements are required, which simplifies processes and saves money.

High Chemical Resistance

The coating is very resistant to chemicals and oils.

Non-Toxic

Nyseal® is environmentally friendly, since the plastic coating is based on polyolefins.

Versatile

The coating can be applied to almost all metal materials.

Reusable

Fasteners with Nyseal® can be reused up to 10 times (depending on the application).

Technical Information

General

Color: green
Material: polyolefin
Shore hardness A 54
Layer thickness 0,2 to 0,4 mm
Sealing effect up to approximately 70 bar (tests by customers required)
Threaded parts from M3 up to M10: hexagon head screws, hexagon socket head cap screws

Temperature Ranges

Temperature resistant from -40°C to +70°C
Maximum temperature: 90°C

Download More Information

Non-Reactive Coatings Brochure

Learn more about the different types of thread-locking and sealing coatings, their specific properties, the advantages of using them, and how they can benefit your application.

630.2 KB | pdf

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