Non-stick and sliding coatings
Non-stick coatings from HÜNI+CO, based on fluoropolymers such as PTFE, FEP, and PFA, effectively prevent unwanted adhesion in a wide range of applications and industries. Would you like to reduce or even eliminate the need for release agents thanks to an anti-adhesive surface? Do you want to optimize the cleaning effort for your components and significantly improve wear resistance? We develop non-stick coatings that match your exact requirements – powerful, durable and customized.
In the field of sliding coatings, we also offer high-level solutions. Based on PTFE, PTFE with graphite and MoS₂, our coatings are used wherever conventional lubricants such as oils or greases reach their limits or cannot be used. Sliding coatings from HÜNI+CO ensure smooth processes and maximum reliability even under demanding conditions.
Regardless of whether you are looking for non-stick or sliding properties, with HÜNI+CO you are opting for experience, precision and customized coating solutions you can rely on.
Non-Stick coatings for the industry
HÜNI+CO, based in Friedrichshafen on Lake Constance, is your specialist for high-performance fluoropolymer coatings offering maximum durability and reliability. Whether in the food industry, laboratory technology, mechanical engineering or the chemical and packaging industries – our premium coatings prevent adhesion, reduce friction and provide long-term protection for your components.
With solutions from HÜNI+CO, you can optimize your processes, reduce cleaning and maintenance costs and extend the service life of your components, even under high mechanical, thermal or chemical loads. Our non-stick and anti-friction coatings increase efficiency and ensure the long-term functionality of your equipment.
Non-stick coatings from Friedrichshafen
- Many years of experience and the highest quality: We have been setting standards in the field of coating technology since 1965. Our expertise enables us to offer you customized corrosion protection solutions of the highest quality.
- Direct contacts: As a family-run company from Friedrichshafen, we rely on direct communication and long-term trust. You will always have a dedicated contact person who understands your requirements and is on hand to provide you with individual advice.
- Reliability and precision: With our expertise and optimized work processes, we guarantee the timely implementation of every project – with the highest quality without compromise.
- Globally reliable: HÜNI+CO offers a fast and reliable service that is appreciated worldwide.
- Customized solutions: We understand that every project is unique. That's why we offer individual solutions tailored to your specific requirements – from one-off production of complex components to large-scale production. With our wide range of coating systems and flexible capacities, we always offer you the optimum solution for your needs.
Plastic coatings for the industry
From A for apparatus engineering to Z for dental technology and from A for armature to Z for rotary valve.
We work closely with customers from almost all technical and industrial sectors and incorporate our knowledge and experience across all industries into our consulting services in order to find the optimum surface solution for you.
We see ourselves as consultants and optimisers and support you in your industrial value creation process.
The areas of application and potential of our Proco Plastic Coatings® are as diverse and broadly diversified as the industries in which we operate. With our Proco non-stick and anti-friction coatings, for example, we achieve significant improvements in your production process:
- Easier cleaning
- Shorter machine service life
- Easier demoulding
- Reduction in the use of release agents
- reduced wear.
Our Proco anti-corrosion coatings are used wherever chemical attacks on the substrate need to be prevented. For example, when transporting class 8 hazardous substances. However, functions such as anti-adhesiveness, food conformity, temperature resistance, wear resistance and electrical conductivity can also be achieved with our Proco anti-corrosion coatings.
Our capacities
In three separate production halls, we have eleven coating systems with stoving and sintering ovens of different sizes, which can cover a maximum temperature range of up to 500°C, for coating your workpieces.
Pre-treatment
SANDBLASTING
Sandblasting is the pre-treatment of the surface of a workpiece by using sand (corundum) as an abrasive to remove rust, dirt, old coatings, paint and other impurities. This process is used to optimise the pre-treatment of the workpiece for the coating process. The abrasive, in this case corundum, is applied to the surface to be treated under high pressure via a special hose and nozzle system. Due to the abrasive effect of the corundum, parts of the surface are loosened and ultimately removed, resulting in a clean surface. Hüni+Co has various blasting systems on which we can process workpieces of up to 10 metres in length with corundum of various grain sizes for you. Blasting with corundum according to DIN EN 12944-4
GLASS BEAD BLASTING
Glass bead blasting is a similar method of pretreating the surface of a workpiece to blasting with sand or corundum. However, small glass beads are used here, which are significantly finer and therefore produce a finer surface. The special thing about glass bead blasting is that it achieves a plastic deformation, which creates the desired internal stress in the workpiece and thus significantly increases the fatigue strength. This is why it is often referred to as shot peening. With glass bead blasting, the surface is less roughened than when blasting with sand or corundum. The more filigree the glass beads, the finer the surface structure, right up to a polishing effect.
DECOATING USING THE PYROLYSIS PROCESS
Pyrolysis is a pyrolytic decomposition process. In a thermal process, without the addition of oxygen, chemical compounds are broken down; large molecules are converted into small molecules. Colloquially, pyrolysis also means burning or incineration. In the case of plastics, the matrix is destroyed and they disintegrate. In coating technology, pyrolysis is an upstream process when workpieces with an old coating are refurbished, i.e. recoated. We offer pyrolysis as a possible decoating process for the pre-treatment of your workpieces.
THERMAL DEGREASING
A grease-free surface is an essential condition for the substrate adhesion of coatings and other surface finishes. In addition to chemical degreasing, thermal degreasing is also used for this purpose. Substances such as oils and greases burn at high heat during thermal degreasing. The residues produced during the process would reduce the substrate adhesion of a coating and are therefore removed, e.g. by radiation.