Profile surface coating
Finishing is one of the key quality features in screw production. At REISSER, you benefit from comprehensive service and personalised support for all coating requirements and logistics solutions - quickly, flexibly and reliably.
Our surface coating capabilities are designed to meet both individual special requirements and the efficient processing of large quantities. With state-of-the-art systems and in-depth expertise that has been continuously growing since 1935, we realise high-quality and customised coating solutions.
Our range of services extends far beyond the fastening industry: customers from industrial sectors such as the automotive industry, valve technology and mechanical engineering also rely on our expertise.
Electropolishing (G/T)
Electropolishing is an electrochemical process for finishing stainless steel surfaces. The controlled removal of material smoothes microscopic roughness and at the same time improves the technical and decorative properties of the material. The process produces a particularly smooth, shiny and burr-free surface - efficiently in just one operation.
In addition to the visual enhancement, electropolishing improves corrosion resistance, reduces roughness and thus facilitates cleaning and reduces build-up on the surface.
- Smooth, shiny and burr-free surfaces
- Improved passivity and increased corrosion resistance
- Reduced coefficient of friction
- Very good cleanability
- Low product adhesion and reduced coating formation
- Reduced adhesion of germs and particles
- High-quality and visually appealing surface
- Improved weldability and solderability
Pickling and passivation (G/T)
Pickling removes a thin layer of metal near the surface of stainless steel components. Acid mixtures are usually used forstainless steels to remove impurities and oxide layers.
The process serves several purposes: among other things, it removes annealing colours, which can occur particularly in welded constructions and impair the chromium content in the near-surface layer. It also removes the slight scaling that can
occur after heat treatment.
While stainless steels passivate themselves under normal conditions, in certain cases this process can be supported and accelerated by targeted treatment with oxidising acids.
Passivation focuses on the targeted build-up and stabilisation of the protective passive layer, which optimises corrosion resistance.
Pickling and passivation are two separate process steps that are carried out one after the other in separate acid treatments. The nitric acid used in the standard process has only a minor pickling effect and is primarily used for training and stabilising the passive layer.
Varnishing
During (head-) varnishing, screws and rivets are finished with high-quality coating systems. In addition to the individual colour design, varnishing provides improved corrosion protection and also increases resistance to external influences and mechanical stress.
- Individual colour design in over 25,000 shades
- Decorative wet paints in RAL, NCS or sample colours of your choice
- More than 20 varnishing qualities - including soft and textured paints, diamond shine and glitter varnishing, design and effect varnishing and ceramic varnishing
- Different gloss levels from matt to high-gloss
- Reliable corrosion protection for indoors and outdoors, e.g. for facades, caravans, passenger carriages or furniture
- Uniform and opaque standard varnishing
- Customised special varnishing according to specific requirements
- Economical and efficient wet painting from quantities as low as 1
Electroless nickel plating (G/T)
Chemical nickel plating is used to protect against wear and corrosion. Through suitable heat treatment, the layer can achieve a high hardness from a thickness of more than 3 μm, which optimises the beneficial properties of the electroless nickel layer.
We offer the process both as a rack process and for special requirements on request - suitable for small parts as well as bulk goods.
- High wear resistance
- High corrosion protection
- Very good mechanical-technological properties
- Uniform and extremely homogeneous coating distribution
- Contour-accurate coating, even of complex geometries
- Non-porous coating with very good dimensional stability, even on edges and in cavities; coating thicknesses of ± 2 μm can be realised
- Non-magnetic, highly chemically resistant and good solderability
- Food-safe and free of lead and cadmium
Zinc plating G/T
Electroplating provides iron and steel components with reliable and sustainable protection against corrosion. Corrosion resistance can be significantly increased by subsequent passivation.
Depending on the requirements, various processes are available, including Cr(VI)-free solutions such as blue passivation and thick-film passivation - optionally with or without nanoparticles. Thanks to special pre-treatment techniques, it is also possible to galvanise stainless steel, which makes the process particularly economical.
Depending on the component geometry, processing is carried out as barrel goods for small parts and bulk goods or as rack goods for larger or sensitive components.
RUSPERT®
The RUSPERT® coating offers reliable and long-lasting corrosion protection. Coated components are particularly suitable for use in marine, industry and tropical climates.
The central component of the system is the RUSPERT® flake. This paint-like corrosion protection system is applied by dipping and then baked at around 200 °C.
The coating is mainly used for bulk parts made of steel, brass, copper, die-cast zinc, aluminium and stainless steel - for example for screws, nuts, washers, springs and turned, stamped and bent parts. The coating combination can vary depending on the base material, while the final RUSPERT® top coat always guarantees consistent protective properties.
- Very high resistance to corrosive gases
- Excellent adhesion to a wide variety of base materials
- Avoidance of contact corrosion
- Very good resistance to weather influences such as moisture, water and seawater as well as fuels, motor oil, brake fluid, antifreeze and cleaning agents
- Temperature resistance up to approx. 250 °C
- Standard colours: silver and black
Zinc flake
Electroplating provides iron and steel components with reliable and sustainable protection against corrosion. Corrosion resistance can be significantly increased by subsequent passivation.
Depending on the requirements, various processes are available, including Cr(VI)-free solutions such as blue passivation and thick-film passivation - optionally with or without nanoparticles. Thanks to special pre-treatment techniques, it is also possible to galvanise stainless steel, which makes the process particularly economical.
Depending on the component geometry, processing is carried out as barrel goods for small parts and bulk goods or as rack goods for larger or sensitive components.
FAQ: Frequently asked questions about electroplating & surface finishing
Answers to the most important questions about our electroplating processes, coatings and services.
REISSER Electroplating offers a wide range of surface finishing for metal parts:
Electropolishing, pickling + passivation, wet painting of connection elements, chemical nickel plating, galvanizing, RUSPERT® coatings as well as zinc flake systems. All processes are suitable for both small batches and large quantities.
The RUSPERT® coating is a high-quality corrosion protection system consisting of several layers. It provides reliable protection against weathering, moisture, salt water, fuels and oils. The coating is suitable for screws, nuts, washers, turned parts and stamped parts. Standard colours are black and silver. Also known as zinc flake coating.
The contact person for electroplating is Marc Binder. You can find his contact details in the FAQ section.
