Sealing Coatings

Nyplas® Under-Head Coating

Nyplas® is a plastic coating made from modified plastisol, which is applied directly under the screw head, flange, or runout of the thread. It provides reliable sealing against liquids and gases, as well as noise insulation.

A group of different fastening elements in brass color with black Nyplas under-head sealing coating applied

How Nyplas® Works

The black Nyplas® coating is melted directly onto the bottom side of the screw head, prior to installation. This eliminates the need to use manually mounted washers, seals or O-rings. Nyplas® provides an excellent sealing effect against liquids and gases, while at the same time acting as a buffer for sensitive surfaces of your workpieces.

Nyplas® vs. Nyseal®

Nyplas® is similar to Nyseal® but can achieve greater coating thickness. Before starting production, we recommend conducting a practical test to determine the required coating thickness.

Nyplas® Advantages

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Superior Performance

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Cost-Effective

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Durable

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Effective Immediately

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Versatile

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Reusable

Technical Information

General

  • Color: black
  • Material: plastisol/ PVC
  • No oil resistance
  • Only for use on horizontal surfaces (e.g. countersunk screws cannot be coated with Nyplas®)
  • Threaded parts from M3 up to M10. Flange screws, nuts etc.

Temperature Ranges

Operating temperature: -40°C to +150°C

Manufacturing Specifications

The following automobile specifications are met:

  • GM 6086M type 3
  • GM 1131M type D
  • Ford ESB-M4G70-A or B
  • Ford WSK M4G70C
  • Daimler Chrysler MSCD43

Download More Information

Thumbnail Non-Reactive Coatings Brochure

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

Unsure Which Fastener Coating Is Right for You?

We help you choose the right surface treatment for your specific requirements.

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