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. Dispersions are used that contain, for example, silicon alcoholates. In a first reaction, these alcoholates are hydrolyzed and begin to polymerize in a further step. Molecular chains are initially formed and, after a longer period of time, tiny particles are formed, and now the dispersion is called a sol. In the further course, i.e. after a certain pot life, the particles form a kind of network in the sol and the sol begins to gel. It now has the properties of a gel. This gel can now be applied to a component, for example by spraying or dipping, and is then applied over a short period 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 Kunststoffbeschichtung GmbH carries out contract coating with sol-gel and is certified as a contract coater according to DIN EN ISO 9001: 2015.