




Efforts to continually reduce fuel consumption have led to dramatic developments in fuel injection systems. Increasing injection pressures requires significantly improved filter performance. Alongside higher particle removal efficiencies, removal of water plays a decisive role in reducing wear in the injection system.
To meet these demands, GESSNER combines impregnated filter media with micro-fibre polyester meltblowns. The impregnated filter media assures easy converting by the customer, maintains a stiff and stable pleat pack, achieves high efficiencies for particle removal and resists the ingress of water droplets. The meltblown layer guarantees high dust holding capacity and enhances water shedding. Depending on individual customer requirements, filter media can be specially developed with resin systems having hydrophobic or hydrophylic properties.
Our standard gasoline in-tank and in-line filter media are designed to maximize fuel cleanliness. The filter media is composed of high quality standard papers saturated with phenolic resins, providing you with optimal performance for your fuel filters. We offer a range of plain and corrugated grades for our standard gasoline in-tank and in-line filters. This provides maximum surface area for efficient filtration, ensuring that your fuel stays cleaner for longer. Our grades are designed to provide superior filtration efficiency, helping to reduce the risk of engine damage caused by dirt or debris.
In-tank filters are lifetime filters, meaning they are never changed. For added confidence, some of our customers are using paper PBT meltblown combinations, providing a higher dirt holding capacity. This ensures that your fuel stays cleaner and more efficient, providing you with reliable performance for longer.
The Diesel standard pre-filter media is the perfect choice for those looking to protect their fuel pump. The initial efficiency requirements are 20 - 60% @>4µm, giving you the assurance that you're getting reliable protection. The Diesel Standard Filter Media is designed to provide fuel water separation, making sure that your fuel pump is being protected from water contamination. Our media is crafted to provide superior fuel water separation capabilities, giving you the assurance that your fuel pump is safe and secure.
Our Diesel standard main filter media is designed to protect your injection nozzles and ensure optimal fuel efficiency. The production tolerances of these nozzles are as small as 2-3µm and the pressure inside them can reach up to 2500-3000 bar. Our innovative filter media ensures that your injection nozzles are protected from any dirt and debris that can cause clogging and reduce fuel efficiency. Our Diesel Standard Filter Media is designed to help increase efficiency without lowering service intervals. We use paper Meltblown (PBT) combinations as a standard for diesel filter applications, that your fuel is filtered and pure. This helps to reduce the need for frequent maintenance and keeps your fuel system running optimally for longer. The Diesel Standard filter media also protects against water contaimination in fuel, which can be a severe issue for the engine. With our innovative filter media, you can keep your fuel system safe and protected from any water or debris.
Keep your diesel engines running smoothly with our high efficient filter media solutions. Our filter filter media for high efficiency use a three layer composition that provides initial efficiencies up to 99.95% at particles greater than 4µm. The micro-glass used in our filter elements helps to reach the highest possible efficiencies while still retaining DHC. Our filter medias are designed to provide tailor-made solutions for our customers. The three layer construction is the result of direct dialogue with our customers to address their concerns about health hazards and abrasive behavior of glass fibers. Our media can be converted on standard lines and we have a toolbox setup to offer tailor-made solutions. Our filter media provide a smooth and abrasion resistant solution for your diesel engines. The micro-glass layer is sandwiched between the meltblown and base paper layer, providing a sturdy and reliable filter element for your engine.

High-performance fuel filter media offers multiple benefits.
Firstly, it provides superior filtration efficiency – capturing nearly all harmful particles before they reach the engine. This protects critical engine components (like high-pressure fuel injectors) from wear and blockage. For example, modern diesel injectors have tiny 2–3 µm tolerances and operate at extreme pressure; our media stops damaging grit well before it can harm these parts.
Secondly, it has excellent water-removal capabilities, which is crucial for diesel engines – separating water from fuel prevents rust and poor combustion. Additionally, its high dirt-holding capacity means filters last longer before clogging, extending service intervals.
Overall, using a high-performance media leads to better engine protection, improved reliability, longer engine life, and even smoother operation with optimal fuel flow, which can contribute to better fuel efficiency.
In short, your engine stays cleaner and healthier, requiring less frequent filter changes and maintenance.
Our fuel filter media improves engine protection by removing contaminants that cause engine wear. It traps fine particles like dust, rust, and debris that would otherwise score fuel pumps or clog injector nozzles. By keeping fuel ultra-clean (up to 99.95% of >4 µm particles filtered), it prevents power loss and maintains the precise fuel atomization that modern engines require. This protection directly translates to better fuel efficiency: clean fuel burns more completely and engines can run at peak performance.
Moreover, by separating water from the fuel, the media stops water-induced damage or inefficient combustion. The result is a more efficient engine – you get the intended power from every drop of fuel, and components like injectors and pumps operate at their optimal range. In essence, the media ensures the engine isn’t fighting against dirt or water contamination, which means improved mileage, smoother power delivery, and fewer costly repairs down the line.
Our fuel filter media is designed for a wide range of automotive and transportation applications. It is suitable for both gasoline and diesel engines.
In gasoline engines, it’s used in in-tank fuel filters (which are often lifetime filters inside the fuel tank) as well as in in-line fuel filters commonly found in the fuel system.
For diesel engines, we offer media for diesel pre-filters (often used as a water separator or coarse filter to protect fuel pumps) and diesel main filters (the fine filtration stage protecting the injectors). This media has been successfully adopted in passenger cars, commercial trucks, buses, and even off-highway machinery.
In fact, our solutions are used by many well-known vehicle brands around the world, in both original factory-installed filters and aftermarket replacement filters. Whether it’s a compact car or a heavy-duty truck, if it requires reliable fuel filtration, our media can be tailored to fit the application.
Our fuel filter media stands out for its combination of highest-grade performance and practical usability. Compared to standard filter papers or many competitors’ products, it achieves much higher filtration efficiency – up to 99.95% of 4 µm particles captured, which is a benchmark for premium filters.
Uniquely, we attain this efficiency without sacrificing dust holding capacity (DHC); the media’s multi-layer design retains plenty of capacity to hold dirt, so it doesn’t clog prematurely. Another key differentiator is our proprietary 3-layer glass microfiber technology. Competitors that use glass fibers often face issues with fiber shedding or handling safety. In contrast, our design sandwiches the glass layer between protective layers, preventing any glass fiber release. This means you get the benefit of glass-fiber level performance (very high efficiency and durability) without the downsides – no risk of fibers contaminating the fuel or posing health risks during filter production.
Additionally, our impregnated media is very robust and easy to pleat on standard equipment, whereas some high-efficiency competitors require special handling. In summary, our media delivers superior filtration and water separation performance, longer service life, and safer handling than typical competitor offerings. It also offers innovative features like the sustainable resin option, which many competitors don’t provide.
All of these give our customers a distinct advantage in their filter products.
Our fuel filter media is developed and manufactured to meet rigorous automotive industry standards. Performance-wise, it is tested according to international filtration standards, including ISO 19438 for fuel filtration efficiency. This ensures that claims like 99.95% efficiency @ 4 µm are backed by standardized testing.
We also design our media to help filter elements comply with ISO 4020, a fuel filter test standard covering performance factors like contaminant holding capacity and water separation (as referenced in industry communications). In terms of quality and production, our facilities adhere to strict quality management certifications: ISO 9001.
Additionally, our media for fuel filters aligns with the requirements of leading engine and vehicle manufacturers (OEMs). In short, it meets or exceeds the common standards for fuel filtration performance and is produced under certified quality systems to ensure consistency and reliability. (For specific uses, we can also provide material safety data and any relevant certifications to customers as needed.)