
Coatings for tank containers
As the leading manufacturer in tank container coatings, HÜNI + CO is your reliable partner for the highest standards. With over 25 years of experience in tank container coatings, we offer tailor-made solutions for the chemical industry and logistics – from comprehensive consultation and chemical resistance testing to the interior coating of ISO tank containers. And even after the coating process, we won’t leave you on your own: In selected and professionally trained depots, minor coating damages can be repaired and maintained.
HÜNI + CO is a member of the International Tank Container Organization ITCO.
Our durable coating solutions stand out for their exceptional longevity and set new standards in the industry. We aim for long-term partnerships based on trust and quality. With our strong international presence, particularly in Germany, Austria, Switzerland, France and the Benelux countries, we are a leader in the industry. Our extensive portfolio of functional coatings sets us apart from other providers – both in Europe and worldwide.
Put your trust in HÜNI + CO and benefit from our expertise – from customized consultation to professional maintenance. Contact us today – HÜNI + CO, your partner for tank container coatings!
Tank coating for the chemical industry
Coated tank containers are essential for the safe transport of highly aggressive chemicals. To ensure the reliability of containers under extreme conditions, a highly special interior tank coating is required. With our many years of experience from thousands of successfully coated tank containers, we provide coating solutions that meet the highest standards in terms of chemical resistance and mechanical durability.
Our interior tank coatings, such as the epoxy resin coating ChemLINE 784® or the phenolic resin-based thermoset coating PROCO–EMAIL®, effectively prevent aggressive substances from penetrating the materials and thus protect the structural integrity of the container. This not only ensures the safety of your products and customers but also provides long-term environmental protection against potential accidents with chemical substances.
Thanks to our expertise in container coatings, we also ensure a smooth process along the supply chain – from planning to delivery. Our DIN EN ISO 9001:2015 certification guarantees that our services meet the highest quality standards.
Tank coating for the chemical industry
Whether in Germany, Austria, Switzerland, France, the Benelux region, or worldwide – with HÜNI + CO, you have a reliable partner by your side. You benefit from direct contact and a straightforward process, even if your location is far away. Thanks to seamless transport solutions, containers up to ten meters long can be easily delivered to us – for example, by rail to the Hupac container terminal in Singen, followed by truck transport or direct shipment to Friedrichshafen.
We serve customers worldwide, with 65 % of our clients coming from Germany, Austria, Switzerland, France and the Benelux region (especially around the major ports of Antwerp and Rotterdam).
HÜNI + CO offers tailor-made solutions for every need – fast and reliable, with no compromises.

Tank container coating from Friedrichshafen
- Experience and Quality: Since 1965, we have been experts in coatings for the chemical industry. In the tank container sector, we have over 25 years of experience and have successfully coated thousands of containers.
- Direct Contact: Als Familienunternehmen legen wir besonderen Wert auf direkte Kommunikation, Verlässlichkeit und langfristige Partnerschaften. Unsere Kunden wissen, dass sie bei uns immer einen klaren Ansprechpartner haben.
- Reliability & On-Time Delivery: Thanks to our expertise and efficient working methods, we guarantee on-time completion and the highest quality – with no compromises.
- Worldwide reach: Transporting your tank containers to Friedrichshafen is easily possible – HÜNI + CO provides fast and reliable service that has proven itself worldwide.
- Custom Manufacturing: We specialize in individual requirements – from the production of complex single components to batch sizes of a few hundred or even thousands. Our strength lies in our wide range of coating systems, large oven capacities, and flexibility in developing tailor-made solutions for every need.
- Maintenance & Repairs: To ensure the optimal upkeep of your HÜNI + CO coated tank containers, we cooperate with selected and certified Tank Container Coating Repair Shops. Additionally, on our TC-Care page, you will find compact maintenance information for depot operations such as cleaning, inspection, and servicing – available in 6 languages!
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.