It's a unique service: BYK customers have been receiving free samples for over 50 years. The small square bottles are either sent from the headquarters in Wesel or from the local representatives and reach their destination within a few hours. Today, the sample bottles can be found on laboratory benches in over 150 countries worldwide - and make many a customer happy: "This bottle feels like the original Coca-Cola one," posted one participant in the chat for BYK's live event in May 2022.

To provide customers with even more information, a BYK QR code has been added to the label since 2023. A smartphone can be used to access the digital product page via the QR code. Not only can you reorder a sample here; there is also access to the entire wealth of information available on the product: From the Safety Data Sheet (SDS) to the Technical Data Sheet (TDS), various regulatory information such as BRIEF or REACH data is available.