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The lotus effect or the Teflon pan are typical associations when it comes to non-stick properties. However, the range of thermally sprayed non-stick coatings extends far beyond this – with numerous applications in the printing and paper industries, for example. The non-stick sealers are just as diverse as the possible applications: they play a decisive role in giving thermally sprayed coatings the desired non-stick properties.
Discover our broad portfolio of high-performance non-stick sealers for thermally sprayed coatings!
The requirements for roll coatings in the paper industry are diverse. Different areas of application such as smoothing or calender rolls, coating rolls, chill rolls or dryer group rolls require different requirements, especially for the thermal spray layer and the sealer. We have developed a silicone sealer for a customer, which is used on large calender rolls. The non-stick effect provided by the silicone ensures low adhesion of dirt and enables a long, fault-free operating time for the roller.
If you have a similar application and are interested in our expertise in sealers, please contact us to arrange an appointment.
Thermal spraying is used in mechanical seals to improve the wear resistance, corrosion resistance and thermal resistance of the sealing surfaces. Tungsten carbide, chromium oxide or aluminium oxide are usually used in combination with heat-resistant non-stick sealants to optimize the friction between the mechanical seal ring and the seal. At our customer’s request, we have developed a silicone sealant with PTFE that meets the requirements and is used in series production for mechanical seal coatings.
If you have a similar application and are interested in our expertise in sealers, please contact us to arrange an appointment.
Our products are as diverse and unique as your spray coatings. For optimum function and maximum benefit, it is important in most cases to adapt the sealer to the spray coating and the subsequent application. We have specialized in the development and adaptation of sealers for thermal spray coatings. Talk to us, we are sure to find a suitable solution.
The all-rounder – 1-component silicone sealer with a high solids content (up to 98%) and temperature resistance up to +500°C, suitable for many applications. Silicone has a low surface energy (approx. 20 mJ/m2) and is therefore ideal for non-stick applications. Liquids often form high contact angles on silicone, which means that they roll off rather than spread. dichtol HTR HS AS is easy to dilute and can therefore be optimized in terms of penetration and corrosion protection.
High-temperature sealant with non-stick properties. The inorganic sealant dichtol BN-HT is resistant up to 1,000 °C after curing and has good non-stick and scratch resistance.
The all-rounder with PTFE – 1-component combination sealant made of silicone and PTFE. By adding nanoscale PTFE, this non-stick sealant forms a friction-reducing PTFE layer on the surface after curing.
The specialist – 2-component epoxy resin sealant with PTFE additive. The combination of epoxy resin and PTFE or Teflon combines several advantages. The EP resin is VOC-free and seals the pores almost completely. EP resins have good chemical resistance. The addition of PTFE creates a stable non-stick layer on the surface. The embedding of the PTFE particles in the EP matrix ensures that this effect is also present in the pores.
Combination of PMMA and PTFE. PMMA sealers are easy to use and can be adjusted over a wide range by adding solvents and thus adapted to the requirements of the spray coating. PMMA is particularly suitable for outdoor applications as it has a very high UV stability.
No problem! Our expert Carsten Kunde will be happy to help you find the perfect solution for your requirements.
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