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About us

A true partner for success

DONIT TESNIT is one of the leading gasket, gasket sheet and sealing solution providers. We offer the best solutions for all of your sealing challenges. This is achieved through an understanding of our customers’ needs, our high quality products, extensive know-how in application engineering and customer driven innovation. We are a true partner for your success!

At a glance


A true partner for success

200+ employees dedicated to you


Experienced production and services from 1946

Extensive experience, enriched by deep understanding of clients’ needs and innovation

we have gained throughout the history, enables us to find optimal solutions for our clients’ sealing problems.


Serving all industries

We have experience in even the most demanding of industries and applications:

  • Automotive industry
  • Steam supply industry
  • Water supply industry
  • General purpose usage
  • Petrochemical industry
  • Pipeline systems
  • Gas supply industry
  • Potable water supply
  • Chemical industry
  • Shipbuilding
  • Machine building
  • Refineries
  • Power plants
  • Food industry
  • For heat exchangers, valves, boilers, radiators, pressure regulators, compressors…

4 pillars of service and development

Our customer centric approach is based on experienced production and is supported by four pillars:

  • Strong R&D, with a focus on innovation,
  • Certified quality and service assurance,
  • Excellent application engineering,
  • Training: intensive, interactive and case study driven education programs to our customers.

This enables us to offer one-stop shop for our clients.


We will be the preferred gasket sheets and gaskets provider for customers that value superior service, quality, reliability and innovation. We will create high added value for our customers, employees and partners.


Through our extensive knowledge of customer needs across a variety of industries and by offering the best products, services and solutions we will become the preferred partner for our customers.