Privacy Policy


ColloidTek Oy and its affiliates (collectively, “ColloidTek”, “Collo”, “we”, “us”, and “our”) respect your privacy. Please read the following to learn more about our Privacy Policy (“this Policy”). This Policy applies to ColloidTek websites that display or provide links to this Policy.

This Policy describes how ColloidTek processes your personal data, but it may not address all possible data processing scenarios. ColloidTek may inform you of specific data collection through supplementary policies or notices provided before collection.

ColloidTek contact information


ColloidTek Oy
Visiokatu 4
33720 Tampere

What personal data ColloidTek collects and what it is used for

Personal data means any data that, either on its own or jointly with other data, can be used to identify a natural person. 

In some cases you may be able to opt not to disclose your personal data to ColloidTek. However, not providing ColloidTek with certain data may mean that we cannot provide you with certain products or services or respond to an issue that you have raised.

ColloidTek does not sell personal information forward.


When visitors leave comments on the website we collect the data shown in the comments form, the visitor’s IP address and the visitor’s browser user agent string to help spam detection.

An anonymized string created from the visitor’s email address (also called a hash) may be provided to the Gravatar service to see if the visitor is really using the email. The Gravatar service privacy policy is available here: After approval of your comment, your profile picture is visible to the public in the context of your comment.


If you upload images to the website, you should avoid uploading images with embedded location data (EXIF GPS) included. Visitors to the website can download and extract any location data from images on the website.

Contact forms

We use a contact forms that send information visitors provided directly to our contact email. After subject has been processed, contact information will not be used for anything else.


If you leave a comment on our website you may opt-in to saving your name, email address and website in a cookie. This is for your convenience so you do not have to fill in your details again when you leave another comment. These cookies will last for one year.

If you visit the login page of this website, we will set a temporary cookie to determine if your browser accepts cookies. This cookie contains no personal data and is discarded when you close your browser.

When you log in, we will also set up several cookies to save your login information and your screen display choices. Login cookies last for two days, and screen options cookies last for a year. If you select “Remember Me”, your login will persist for two weeks. If you log out of your account, the login cookies will be removed.

If you edit or publish an article, an additional cookie will be saved in your browser. This cookie includes no personal data and simply indicates the post ID of the article you just edited. It expires after one day.

Embedded content from other websites

Articles on this website may include embedded content (e.g. videos, images, articles, etc.). Embedded content from other websites behaves in the exact same way as if the visitor has visited the other website.

These websites may collect data about you, use cookies, embed additional third-party tracking, and monitor your interaction with that embedded content, including tracking your interaction with the embedded content if you have an account and are logged in to that website.


We use Google Analytics at

Google Analytics is a piece of software that grabs data about our website visitors (you).

What data does Google Analytics record?

  • What website you came from to get here.
  • How long you stay for.
  • What kind of device you are using.
  • What internal sites you visited.
  • How long you spend on each page.
  • What internal links you clicked.
  • What documents you download.
  • What videos you click.
  • What web browser you are using.
  • Which Flash version you are using.
  • Which JavaScript support you are using.
  • The location of the network you are connected to.

Google Analytics does not collect any identifiable personal data, such as name, email address or billing information.

What does ColloidTek do with the data gathered from visitors?

By default ColloidTek does not share your data with third parties.

The tracking information allows us to better understand the kind of people who come to our site and what content they are reading. This allows us to make better decisions about design and writing and helps us offer more interesting content.

Occasionally, we will compile aggregate statistics about the number of visitors this site receives and browsers being used. No personally identifying data is included in this type of reporting.

All of our activity falls within the bounds of the Google Analytics Terms of Service.

You can also opt out of Google’s advertising tracking cookie or use a browser plugin to opt out of all Google Analytics tracking software.

How long we retain your data

If you leave a comment, the comment and its metadata are retained indefinitely. This is so we can recognize and approve any follow-up comments automatically instead of holding them in a moderation queue.

For users that register on our website (if any), we also store the personal information they provide in their user profile. All users can see, edit, or delete their personal information at any time (except they cannot change their username). Website administrators can also see and edit that information.

What rights you have over your data

If you have an account on this site, or have left comments, you can request to receive an exported file of the personal data we hold about you, including any data you have provided to us. You can also request that we erase any personal data we hold about you. This does not include any data we are obliged to keep for administrative, legal, or security purposes.

Where we send your data

Visitor comments may be checked through an automated spam detection service.

Our Contact information

ColloidTek Oy. Visiokatu 4, 33720 Tampere, Finland.

Additional information

This section includes some further information on more advanced areas of personal data management.

How we protect your data

We do not collect any sensitive information. When you comment on our posts, you do not have to provide any personal information if you do not want to. If you fill in your email, name or website information, they will be held in our database which is accessible only for trusted persons. Contact form information will not be recorded in our website database but will be sent straight to our trusted email.

What data breach procedures we have in place

If there is a data breach in the server provider or in our CMS, we will inform about it as soon as we get the information.

What third parties we receive data from

We do not receive any third party data.

What automated decision making and/or profiling we do with user data

We do not use any automated user data systems.

Industry regulatory disclosure requirements

We comply with the European GDPR-legislation.

We reserve the rights to modify this Privacy Policy whenever we deem it necessary.