Sol-gel coatings comprise a large group of different substances that are named after the manufacturing process, the so-called Sol-gel process or sol-gel process receive. In this case, dispersions are used which contain, for example, silicon alkoxides. In a first reaction, these alkoxides are hydrolyzed and begin to polymerize in a further step. Molecular chains and, after a longer period of time, the smallest particles are formed, and now the dispersion is called a sol. In the further course, ie after a certain pot life, the particles in the sol form a kind of network and the sol begins to gel. It now has the properties of a gel. This gel can now be applied to a component by spraying or dipping, for example sintering process hardened. This results in glassy layers that are very scratch resistant.
Anti-adhesive sol-gel topcoats
- For permanent light cleaning layers on glass, ceramics and metals
- Non-stick effect due to fluorinated end groups
- Good scratch resistance
- Good corrosion protection
- High temperature resistance (up to 400 ° C)
- Food approval possible
Rhenotherm Kunststoffbeschichtungs GmbH carries out contract coatings with sol-gel and is certified as a contract coater according to DIN EN ISO 9001: 2015.