Data protection

Responsible for content and arrangement of this website (according to german law § 5 TDG and § 55 RStV)

C. Otto Gehrckens GmbH & Co. KG Dichtungstechnik
Postfach 1453
D-25404 Pinneberg

Gehrstücken 9
D-25421 Pinneberg

Phone 04101 - 5002-0
Fax 04101 - 5002 - 83

E-Mail: info(at)cog.LÖ
Managing owner: Ingo Metzger,  Jan Metzger

Data protection officer 
We have appointed a data protection officer for our company. In case of question concerning the processing of personal data you may contact him directly under the following contact details: 

Andreas Jahnke
Mailadress: C. Otto Gehrckens GmbH & Co. KG, Seal Technology, Gehrstücken 9, D-25421 Pinneberg
e-mail: dsb-cog(at)cog.LÖ

An overview of data protection
We appreciate your visit to our website and your interest in our company. We take the protection of your personal data very seriously and process personal data in accordance with the data protection regulations of the country in which the responsible office is located. This privacy statement applies only to the website of C. Otto Gehrckens with the domain and not for websites that may be linked to.

The following gives a simple overview of what happens to your personal information when you visit our website. Personal information is any data with which you could be personally identified. Detailed information on the subject of data protection can be found in our privacy policy found below. Data collection on our website. We take the protection of your personal data very seriously. We treat your personal data as confidential and in accordance with the statutory data protection regulations and this privacy policy. 

Who is responsible for the data collection on this website?
The data collected on this website are processed by the website operator. The operator's contact details can be found in the website's required legal notice.

How do we collect your data?
Some data are collected when you provide it to us. This could, for example, be data you enter on a contact form. Other data are collected automatically by our IT systems when you visit the website. These data are primarily technical data such as the browser and operating system you are using or when you accessed the page. These data are collected automatically as soon as you enter our website. What do we use your data for? Part of the data is collected to ensure the proper functioning of the website. Other data can be used to analyze how visitors use the site.

What rights do you have regarding your data?
You always have the right to request information about your stored data, its origin, its recipients, and the purpose of its collection at no charge. You also have the right to request that it be corrected, blocked, or deleted. You can contact us at any time using the address given in the legal notice if you have further questions about the issue of privacy and data protection.

Cookie Policy
Cookies are small text files that are stored on your computer and saved by your browser. Cookies help make our website more user-friendly, efficient, and secure. Most of the cookies we use are so-called "session cookies." They are automatically deleted after your visit. Other cookies remain in your device's memory until you delete them. These cookies make it possible to recognize your browser when you next visit the site.

You can configure your browser to inform you about the use of cookies so that you can decide on a case-by-case basis whether to accept or reject a cookie. Alternatively, your browser can be configured to automatically accept cookies under certain conditions or to always reject them, or to automatically delete cookies when closing your browser. Disabling cookies may limit the functionality of this website.

Cookies which are necessary to allow electronic communications or to provide certain functions you wish to use (such as the online shop) are stored pursuant to Art. 6 paragraph 1, letter f of DSGVO. The website operator has a legitimate interest in the storage of cookies to ensure an optimized service provided free of technical errors. If other cookies (such as those used to analyze your surfing behavior) are also stored, they will be treated separately in this privacy policy.


We use a Cookie Consent Management System from CookieFirst (provider: Digital Data Solutions B.V. based in the EU) to manage consent for our website. This ensures that the personal data of our website visitors are only processed in compliance with the GDPR.

This cookie policy has been created and updated by
This cookie table has been created and updated by the CookieFirst consent management platform.

Server log files
The website provider automatically collects and stores information that your browser automatically transmits to us in "server log files", which is absolutely necessary for technical reasons. These are: Browser type and browser version, operating system used, referrer URL, host name of the accessing computer, time of the server request, IP address. These data will not be combined with data from other sources. The basis for data processing is Art. 6 (1) (f) DSGVO, which allows the processing of data to fulfill a contract or for measures preliminary to a contract.

Contact form
Should you send us questions via the contact form, we will collect the data entered on the form, including the contact details you provide, to answer your question and any follow-up questions. We do not share this information without your permission. We will, therefore, process any data you enter onto the contact form only with your consent per Art. 6 (1)(a) DSGVO. You may revoke your consent at any time. An informal email making this request is sufficient. The data processed before we receive your request may still be legally processed. We will retain the data you provide on the contact form until you request its deletion, revoke your consent for its storage, or the purpose for its storage no longer pertains (e.g. after fulfilling your request). Any mandatory statutory provisions, especially those regarding mandatory data retention periods, remain unaffected by this provision.

Registration on this website (Login Onlineshop)
You can register on our website in order to access additional functions offered here. The input data will only be used for the purpose of using the respective site or service for which you have registered. The mandatory information requested during registration must be provided in full. Otherwise, we will reject your registration.

To inform you about important changes such as those within the scope of our site or technical changes, we will use the email address specified during registration. We will process the data provided during registration only based on your consent per Art. 6 (1)(a) DSGVO. You may revoke your consent at any time with future effect. An informal email making this request is sufficient. The data processed before we receive your request may still be legally processed.

We will continue to store the data collected during registration for as long as you remain registered on our website. Statutory retention periods remain unaffected. 

Information, blocking, deletion
As permitted by law, you have the right to be provided at any time with information free of charge about any of your personal data that is stored as well as its origin, the recipient and the purpose for which it has been processed. You also have the right to have this data corrected, blocked or deleted. You can contact us at any time.

Website Tracking

Google Analytics
This website uses Google Analytics, a web analytics service. It is operated by Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA. Google Analytics uses so-called "cookies". These are text files that are stored on your computer and that allow an analysis of the use of the website by you. The information generated by the cookie about your use of this website is usually transmitted to a Google server in the USA and stored there. Google Analytics cookies are stored based on Art. 6 (1) (f) DSGVO.

You can prevent these cookies being stored by selecting the appropriate settings in your browser. However, we wish to point out that doing so may mean you will not be able to enjoy the full functionality of this website. You can also prevent the data generated by cookies about your use of the website (incl. your IP address) from being passed to Google, and the processing of these data by Google, by downloading and installing the browser plugin available at the following link: An opt-out cookie will be set to prevent your data from being collected on future visits to this site

The website operator has a legitimate interest in analyzing user behavior to optimize both its website and its advertising. IP anonymization We have activated the IP anonymization feature on this website. Your IP address will be shortened by Google within the European Union or other parties to the Agreement on the European Economic Area prior to transmission to the United States. Only in exceptional cases is the full IP address sent to a Google server in the US and shortened there. Google will use this information on behalf of the operator of this website to evaluate your use of the website, to compile reports on website activity, and to provide other services regarding website activity and Internet usage for the website operator. The IP address transmitted by your browser as part of Google Analytics will not be merged with any other data held by Google. 

The use of Google Analytics takes place in accordance with the requirements agreed-upon by German data protection authorities and Google. Information on the third-party provider: Google Dublin, Google Ireland Ltd., Gordon House, Barrow Street, Dublin 4, Ireland, Fax: +353 (1) 436 1001. 

Terms of use:
Privacy statement:

With the following link you can contradict the use of Google Analytics on this page. For this a cookie is set, which excludes you from the data collection with Google Analytics.

Disable Google Analytics(The cookie has been set successfully, if you want to reactivate Google Analytics click on the following link:
Enable Google Analytics)

Use of the Google Tag Manager (GTM)

We also use the GTM, with which various website tags can be managed via a graphical interface. This is a service provided by Google that accepts tags from other services (e.g. Google Analytics) in order to manage or correlate them. The GTM does not set any cookies and does not collect any personal data. However, the GTM is able to trigger events so that tags managed in the GTM can in turn collect data. If tracking has been deactivated, this also applies to all tracking tags that are managed with the Google Tag Manager. More information about the Google Tag Manager can be found under the following link: 

In order to safeguard this website and optimise loading times, Cloudflare is used as a CDN (content delivery network). As a result, all queries are managed by their servers and consolidated into statistics that cannot be deactivated. According to their own information, the raw data collected in this way will generally be deleted within 4 hours, and at the latest after 3 days. Further information on the data they collect (, as well as on Cloudflare’s security and data protection, can be found here (


What data is stored by Cloudflare?

Cloudflare generally only forwards those data that are controlled by website operators. The content is therefore not determined by Cloudflare, but always by the website operator itself. In most cases, Cloudflare receives data such as contact information, IP addresses, security fingerprints, DNS log data and performance data for websites derived from browser activity. Log data helps Cloudflare to detect new threats, for example. In this way, Cloudflare can ensure a high level of security protection for our website. Cloudflare processes this data as part of the services in compliance with the German Data Protection Regulation (DSGVO).

How long and where is the data stored?

Cloudflare stores your information mainly in the USA and the European Economic Area. Cloudflare may transfer and access the information described above from around the world. We have concluded a corresponding order processing agreement with Cloudflare based on the DSGVO.

How can data be deleted or data storage prevented?

Generally, Cloudflare stores data for less than 24 hours. All data that Cloudflare collects (temporary or permanent) is cleansed of all personal data (such as IP addresses). All permanent logs are also anonymised by Cloudflare. However, if IP addresses trigger security alerts at Cloudflare, there may be exceptions to the storage period listed above. You can find out exactly which permanent logs are stored at Further information on the data collected can be found at, as well as at

You can completely prevent Cloudflare from collecting and processing your data by deactivating the execution of script code in your browser or by installing a script blocker in your browser.

Newsletter data
In the free COG Newsletter, the company C. Otto Gehrckens GmbH & CO. KG (COG) reports at regular intervals on interesting news and training offers around COG and the topic o-ring seals. If you would like to receive the COG newsletter, we need a valid e-mail address from you, which allows us to verify that you own the e-mail address given or that the owner agrees to receive the newsletter.

The indication of first and last name are optional and serve the personal address. Also optional is the indication of your company name and the selection of the sector allocation. This voluntary statement allows us to better tailor the information and topics in our newsletter to your needs. By registering for the newsletter, we save your IP address and the date of registration. This serves as evidence in the event that a third party misuses an e-mail address and logs on without the knowledge of the authorised party to receive the newsletter. The granted consent to the storage of the data, the e-mail address and its use for sending and managing the newsletter can be revoked at any time. The easiest way to do this is via the "unsubscribe" link in the newsletter or by using your e-mail address via the "unsubscribe newsletter" link on the following page

You can also address your objection to marketing(at)cog.LÖ

Newsletter Service Provider Evalanche

This website uses Evalanche to send newsletters. The provider is SC-Networks GmbH, Würmstraße 4, 82319 Starnberg. Evalanche is a service used to organise and analyse the sending of newsletters. This service only becomes active after your registration and explicit consent to receive the newsletter. The data you enter for the purpose of receiving the newsletter (e.g. e-mail address) is stored on Evalanche's servers in Germany. Other Evalanche customers or third parties have no access to this data. Evalanche enables us to analyse the behaviour of the newsletter recipients so that the dispatch and the newsletter content can be optimised for the recipients.

The data processing is based on your consent (Art. 6 para. 1 lit. a DSGVO). You can revoke this consent at any time by unsubscribing from the newsletter. The data you provide for the purpose of receiving the newsletter will be stored by us until you unsubscribe from the newsletter and will be deleted from our servers as well as from the servers of Evalanche after you unsubscribe from the newsletter. For more details, please refer to the data protection provisions of Evalanche at:

Plugin and Tools

Our website uses plugins from YouTube, which is operated by Google. The operator of the pages is YouTube LLC, 901 Cherry Ave., San Bruno, CA 94066, USA. If you visit one of our pages featuring a YouTube plugin, a connection to the YouTube servers is established. Here the YouTube server is informed about which of our pages you have visited. If you're logged in to your YouTube account, YouTube allows you to associate your browsing behavior directly with your personal profile. You can prevent this by logging out of your YouTube account. YouTube is used to help make our website appealing. This constitutes a justified interest pursuant to Art. 6 (1) (f) DSGVO. Further information about handling user data, can be found in the data protection declaration of YouTube under

Google Maps
This site uses the Google Maps map service via an API. It is operated by Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA. To use Google Maps, it is necessary to save your IP address. This information is generally transmitted to a Google server in the USA and stored there. The provider of this site has no influence on this data transfer. The use of Google Maps is in the interest of making our website appealing and to facilitate the location of places specified by us on the website. This constitutes a justified interest pursuant to Art. 6 (1) (f) DSGVO. Further information about handling user data, can be found in the data protection declaration of Google at

This site uses the applicant management system of d.vinci HR-Systems GmbH Nagelsweg 37-39, 20097 Hamburg via a script (JavaScript). In order to use the applicant management system, the use of technical cookies (session cookies) is necessary. A session cookie does not store any information that serves to identify the user. Instead, a session ID is stored. This ID is responsible for correctly assigning various requests of the user on a page. The session cookies used by the d.vinci applicant management system are exclusively temporary and are automatically deleted as soon as the user closes the browser.

Address of the provider and URL with their data protection information:

Reservation of changes
We reserve the right to change our privacy policy at any time, especially if necessary due to legal changes or adaptation to new requirements.