Privacy policy and data protection

The operators of this website the protection of your personal data very seriously. We treat your personal data confidentially and in accordance with the statutory data protection regulations as well as this data protection declaration.

In general, it is possible to use our website without providing personal data. When personal data (e.g. name, address or e-mail address) is collected on our webpage, this is always done in a voluntary manner whenever possible. We are only provided with the name of your internet service provider, the website from which you have visited our website, which of our webpages you visited and other similar information. This information (the server log files) is evaluated for statistical purposes in order to optimize our website and the technology behind it. As an individual user, you remain anonymous. This data will not be passed on to third parties without your formal consent.

We would like to point out that data transfer on the Internet (e.g. communication by e-mail) can have security flaws. Complete protection of data against access by third parties is therefore not possible.

The responsible body for compliancy with the data privacy is:

Solar Spring GmbH
Membrane Solutions
Christaweg 40
79114 Freiburg

Telephone: +49 (0) 761-610-508-3
Fax: +49 (0) 761-610-508-50

Log files


While you visiting our website, your browser automatically transmits the following data:

  • Your IP address
  • The website from which you accessed our website
  • Web pages you access via our site
  • The pages you click on
  • The time of webpage access
  • The name of your internet service provider
  • Your browser type and its version
  • The operating system of your device
  • The date and duration of your visit


Some of the Internet pages use so-called cookies. Cookies do not damage your computer and do not contain viruses. Cookies make our webpage more user-friendly, effective and secure. Cookies are small text files that are stored on your computer and saved by your browser.

Most of the cookies we use are so-called “session cookies”. They are automatically deleted at the end of your visit. Other cookies remain stored on your device until you delete them. These cookies enable us to recognize your browser during your next visit.

You adjust your browser to inform you about cookies settings and only allow cookies in selected cases, exclude the acceptance of cookies for certain cases or in general and activate the automatic deletion of cookies when closing the browser. If you deactivate cookies entirely, the functionality of this website may be reduced.

Contact form

If you send us enquiries via the contact form, your details contained in the form including the contact details you provide, will be stored by us for the purpose of processing the enquiry. We will not pass on this data without your consent.

Newsletter data

If you would like to receive the newsletter offered through our website, a valid e-mail address must be provided along with information which allows us to verify that you are the owner of that address and agree to receive the newsletter. No further data will be collected. This data will be used exclusively for sending the requested information and will not be passed on to third parties.

Processing of the data entered in the newsletter registration form is performed exclusively with your consent (Art. 6 para. 1 lit. a DSGVO). At any time, consent can be revoked regarding the storage of the data, the e-mail address, and receiving the of the newsletter for example via the “unsubscribe” link in the newsletter.

Google reCAPTCHA

We use “Google reCAPTCHA” (hereinafter “reCAPTCHA”) on our websites. The provider is Google Inc, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA (“Google”). The purpose of reCAPTCHA is to check whether data entry on our websites (e.g. in a contact form) is made by a human or by an automated programs. For this purpose, reCAPTCHA analyses the behaviour of the website visitor on the basis of various characteristics. This analysis begins automatically as soon as the website visitor enters the website. For the analysis, reCAPTCHA evaluates various information (e.g. IP address, time spent by the website visitor on the website or mouse movements made by the user). The data collected during the analysis is forwarded to Google.

The reCAPTCHA analysis runs entirely in the background. Website visitors are not informed that an analysis is taking place.

Data processing is based on Art. 6 para. 1 lit. f DSGVO. The website operator has a legitimate interest in protecting its web offers from abusive automated spying and from SPAM.

For more information on Google reCAPTCHA and Google’s privacy policy, please see the following links: and html .

Google Analytics

This website uses functionalities of the web analysis service Google Analytics. The provider is Google Inc, 1600 Amphitheatre Parkway Mountain View, CA 94043, USA.

Google Analytics also uses so-called “cookies”. These are text files that are stored on your computer and enable an analysis of your use of the website. The information generated by the cookie about your use of the website will be transmitted to and stored by Google on servers in the United States.

IP anonymization

We have activated an IP anonymization function on this website. This means that your IP address is shortened by Google within member states of the European Union or in other contracting states of the Agreement on the European Economic Area before being transmitted to the USA.

Only in exceptional cases will the full IP address be transmitted to a Google server in the USA and shortened there. On behalf of the operator of this website, Google will use this information for the purpose of evaluating your use of the website, compiling reports on website activity and providing other services relating to website activity and internet usage to the website operator. The IP address transmitted by your browser as part of Google Analytics will not be merged with other Google data.

Browser plugin

You may refuse the use of cookies by selecting the appropriate settings on your browser, however, please note that if you do this, it may limit the full functionality of this website.

You can also prevent the collection of data generated by the cookie and related to your use of the website (including your IP address) to Google and the processing of this data by Google by downloading and installing the browser plugin available under the following link:

Objection to data collection

You can prevent the collection of your data by Google Analytics by clicking on the following link. An opt-out cookie will be set, which will prevent the collection of your data during future visits to this website:

Deactivate Google Analytics

For more information on how Google Analytics handles user data

Analytics can be found in Google’s privacy policy:

Customer order data processing

We have a customer order data processing agreement with Google and fully implement the strict requirements of the German data protection authorities when using Google Analytics.

Demographic characteristics with Google Analytics

This website uses the “demographic characteristics” function of Google Analytics. This allows reports to be generated that contain statements on the age, gender and interests of site visitors. This data comes from interest-based advertising by Google as well as visitor data from third-party providers.

This data cannot be assigned to a specific person. You can deactivate this function at any time via the ad settings in your Google account or generally prohibit the collection of your data by Google Analytics as shown in the item “Objection to data collection”.


Our website uses plugins from the YouTube site operated by Google. The operator of the site is YouTube, LLC, 901 Cherry Ave, San Bruno, CA 94066, USA. When you visit one of our pages equipped with a YouTube plugin, a connection to the YouTube servers is established. This tells the YouTube server which of our pages you have visited.

If you are logged into your YouTube account, you automatically enable YouTube to correlate your online data tracking directly to your personal profile. You can prevent this by logging out of your YouTube account.

Further information on the handling of user data can be found under YouTube’s privacy policy at:

Right to disclosure, deletion, blocking

You have the right at any time to free disclosure on any information regarding your stored personal data, its origin, the recipients and the purpose of data processing, as well as the right to correct, block or delete this data. You can contact us at any time at the address given in the imprint for this purpose and for further questions on the subject of personal data.

Objection to advertising mails

We hereby object to the use of any of our contact data published in our website imprint for the use of advertising that has not been specifically requested. The operators of the pages expressly reserve the right to take legal action in the event of the unsolicited sending of advertising information, e.g. spam e-mails.

Google Maps Plugin

We use privacy-safe “Shariff” buttons on the website. “Shariff” was developed by specialists from the computer magazine “ct” to enable more privacy on the internet and to replace the usual “share” buttons used by social networks. A single click on the button is enough to share information with others. Usual social media buttons transmit user data with every page view and give the social networks precise information about your surfing behaviour (user tracking). In contrast, a Shariff button establishes direct contact between the social network and the visitor only when the latter actively clicks on the Share button. More information about the Shariff project can be found here:

Sharing buttons

On the website, we use privacy-protected “Shariff” buttons. “Shariff” was developed by specialists from the computer magazine c’t to enable more privacy in the network and replace the usual “share” buttons on social networks. All it takes is a single click on the button to share information with others. Usual social media buttons transmit user data with each page view and give the social networks accurate information about your surfing behavior (user tracking). On the other hand, a Shariff button does not establish direct contact between social network and visitors until the latter actively clicks on the share button. More information about the Shariff project can be found here:

Questions about privacy policy

If you have any further questions about the processing of your personal data or on data protection, please send us an e-mail to: .