The usage instructions are recommendations based on the tests we have conducted and our experiences. We do not assume any liability for a specific application result due to the large number of applications and storage/usage conditions. Insofar as our free customer service provides technical information or acts as an advisory service, this service is provided under the exclusion of any liability, unless the advice or information given falls within the scope of our specified, contractually agreed scope of services or the consultant was acting deliberately. We guarantee consistent quality of our products. We reserve the right to make technical changes and carry out further development.