Rubber

In the food, beverage, pharmaceutical, and biotechnology industries, maintaining strict hygiene is non-negotiable. Equipment must be routinely sanitized using CIP (Cleaning-In-Place) or SIP (Sterilization-In-Place) protocols. These processes involve circulating aggressive chemicals (strong acids, alkalis, peroxides) and/or high-temperature steam. For any piece of processing equipment (tanks, pipes, valves, pumps) the seals are the weak point. A failure in the rubber extrusion seal due to chemical attack or heat degradation can lead to contamination, process downtime, and costly compliance issues. Choosing the right elastomer for these demanding environments is a technical challenge where material expertise is critical. The Challenges of CIP/SIP on Extrusion Seals CIP/SIP cleaning subjects the extrusion seal to extreme conditions: A standard industrial rubber seal will quickly fail under these conditions. Material Selection for Hygienic Rubber Seal Extrusion Profiles The ideal material for rubber seal extrusion profiles in hygienic applications must offer both excellent chemical and thermal resistance. The three primary materials used are EPDM, FKM, and Silicone: Material Key Strengths Limitations in CIP/SIP Best Application EPDM (Peroxide-Cured) Excellent hot water and steam resistance. Good chemical resistance to polar solvents and acids. Poor resistance to oils, greases, and non-polar solvents. Food/beverage lines, steam sterilization. FKM (Fluoroelastomer) Superior chemical resistance (acids, bases, oils, solvents). High-temperature performance. Poor resistance to hot water/steam over long periods; high cost. Chemical processing, high-fat food products. Silicone (VMQ) Excellent high/low-temperature stability. Very low compression set. Poor resistance to concentrated steam and strong acids/bases; low mechanical strength. Low-pressure applications, general sealing where high temperature is key. For most high-pressure, steam-based CIP/SIP systems, peroxide-cured EPDM is often the first choice due to its excellent resistance to steam and common cleaning agents, provided the process does not involve high levels of animal fats or oils. Hygienic Design and Compliance Beyond the material, the design of the extruded rubber seal must facilitate cleaning: ISOGOM: Your Partner in Hygienic Sealing As experts in rubber extrusion seal manufacturing, ISOGOM understands the critical nature of CIP/SIP compliance. We specialize in providing rubber seal extrusion profiles that meet the stringent requirements of hygienic systems: Do you need a reliable, compliant rubber extrusion seal for your hygienic equipment?Contact ISOGOM today for a quote and consultation on finding the ideal extrusion seal material and profile for your demanding CIP/SIP application.

In modern construction, energy efficiency is paramount. For aluminium window, door, and facade systems, this translates directly to the effectiveness of the thermal break. An aluminium profile, while structurally robust, is highly conductive, creating a “thermal bridge” that allows heat to escape in winter and enter in summer, leading to significant energy loss and internal condensation. A high-performance system must incorporate a thermal break (a non-metallic barrier inserted between the inner and outer parts of the aluminium profile) to disrupt this path of heat flow. Here is a look at the essential components and seals an expert aluminium extrusion profile supplier provides to ensure maximum thermal performance. More info here about aluminium windows. The Core Component: Polyamide Profiles The most common material for the thermal break component itself is Polyamide (PA) reinforced with glass fibers. Polyamide offers a low thermal conductivity, effectively isolating the interior and exterior profile shells. The Role of Seals and Gaskets in Thermal Performance While the polyamide profile stops conduction, the seals stop convection and air leakage. Without proper sealing, air can circulate through the chambers of the extrusion profiles, nullifying the thermal break’s effect. The Impact of Profile Connector Design In complex assemblies, such as corners or mullion/transom junctions, the thermal continuity must be maintained. This is where the design of the profile connector and ancillary seals becomes crucial. Why Choose ISOGOM for Thermal Break Components and Seals? As a specialized aluminium extrusion profile supplier (focusing on the sealing components), ISOGOM ensures that your thermal breaking system achieves its full potential. We provide high-quality sealing solutions that complement the Polyamide strips: Contact us to discuss your thermal break project. We will supply the sealing components and expertise needed to achieve superior energy ratings and condensation control in your aluminium systems.

When you design or install a curtain wall, you know there is no room for error: any air or water leakage can lead to complaints, extra maintenance and a bad image with your customer. And in many cases, the difference lies in something you can’t see: the seals. That’s why choosing the right seal manufacturer is not a minor detail, it’s a strategic decision. Here is a practical checklist to help you evaluate your next curtain wall joint supplier. Materials: the right rubber for your façade? Not all joints are the same, nor does all rubber behave in the same way when exposed to the sun, rain or building movements. A good supplier should: If the supplier only talks about ‘standard rubber’ without much further detail… that’s a bad sign. To learn more about this topic, take a look at this article on curtain walls: joint geometry and drainage to prevent leaks. Dimensional control: tolerances that make the difference In a curtain wall system, everything has its tolerance, and joints are no exception. A good supplier of joints and profiles for façades should guarantee: Always ask how they check the dimensions and how often. If the answer is vague, the actual control is probably vague too. Validations and tests: beyond ‘this has always worked’ Your supplier should not rely solely on experience, but also on data. A joint extrusion company specialising in curtain walls should be able to offer: They don’t need to test everything for every project, but they do need to be able to demonstrate that their compounds and designs are validated. > More info on how a tightness test is performed. Deadlines, service and continuity of supply The best seal in the world is useless if it doesn’t arrive on time. When choosing between several seal manufacturers, consider: On site, every day counts; a joint supplier has to be aligned with that reality. Custom design and technical support: you are not just ‘another order’ In many curtain wall projects, standard joints fall short. That’s where a partner who can create custom profiles and joints makes all the difference: Why choose ISOGOM? At ISOGOM, we specialise in the design and manufacture of rubber profiles and gaskets for façade applications. As a gasket extrusion company, we can accompany you from the design phase to the construction site, combining: If you are looking for a reliable supplier of curtain wall joints, with custom design capabilities and local technical support, let’s talk. Request a quote and tell us what type of system you are developing: together we will find the joint extrusion solution that best suits your project.

In a curtain wall, everything seems to be perfect… until the first leak appears. And the problem is almost always in the same place: the rubber seal. Poor installation of rubber seals for glass in aluminium windows can ruin a façade that, on paper, was flawless. Let’s review the most common mistakes when installing seals in curtain walls and how to avoid them so that the work does not surprise you with the first side wind or the first serious downpour. What is actually tested in a curtain wall? In a lightweight façade system, glass, aluminium and sealants work together to ensure watertightness, thermal and acoustic insulation. Rubber seals are responsible for: Sealing the perimeter between the glass and the profile. Accompanying the expansion of the aluminium and glass. Preventing vibrations and air noise. If you want to learn more about types and functions, you can find more information in this guide on seals for aluminium windows, types, measurements and installation. Common mistakes when installing seals in curtain walls Installation faults and incorrect seating A classic: the seal for aluminium windows does not fit properly in its housing. This may be due to: Result: micro-channels of water, air whistling and, over time, premature deformation of the rubber. Incorrect use (or absence) of lubrication Fitting rubber seals to aluminium windows dry, especially on radii or corners, is an invitation for the seal to twist, mark or even tear. Ideally, a lubricant compatible with the seal material (EPDM, TPE, etc.) should be used. Impossible radii of curvature Another common mistake is to ask the seal to make a curve that it is not designed to make: Here the problem is not only one of assembly, but also of design: it is necessary to choose rubber seals for aluminium window panes with a geometry suitable for the curtain wall system and its radii. Poorly resolved cuts and open joints Cuts are a critical point: Short sections that generate too many joints in the same panel. In many cases, it is recommended to cut at a mitre (45°) and secure the joints according to the system manufacturer’s instructions. How to avoid these mistakes on site Some basics that make a difference: > For more information on types and designs of curtain walls. Do you need customised seals for your curtain wall? Each façade system has its own particularities: glass widths, chambers, wind pressures, watertightness requirements… That is why a standard seal often falls short. At ISOGOM, we specialise in the design and manufacture of custom rubber seals for aluminium windows and curtain walls, adapting: If you want to avoid surprises on site and reduce incidents due to leaks, contact us.

If you work with light façade systems, you already know this: every major project ends up at the test bench. Air permeability, water tightness and wind resistance have become standard requirements for developers, architects and system manufacturers. And in the middle of that entire assembly of profiles, anchors and glazing, a discreet component carries much of the outcome: the window seal that closes the curtain wall, both in fixed panels and operable areas. Let’s look at what is actually tested and how sealing rubbers are prepared to pass those tests with confidence. What Is Really Tested in a Curtain Wall System? In an accredited laboratory, the façade mock-up is assembled just like on site and subjected to a sequence of standardised tests: The required classifications vary depending on country, wind zone and building type, but the market trend is clear: higher classes and greater safety against extreme events. The Role of Rubber Seals in Aluminium Window Systems In a light façade system, rubber seals are far more than a simple “finishing detail”: When discussing rubber seals for aluminium window systems, both the section design and the choice of material (EPDM, TPE, co-extrusions, etc.) are critical for maintaining elastic properties over the years, even under UV radiation and continuous rain/sun cycles. Many of these solutions fall under the category of extruded rubber seal or sealing rubbers, which must remain stable under demanding environmental conditions. If you want to learn more about types and installation, ISOGOM offers a complete guide on seals for aluminium window systems. How Seals Are Prepared to Pass Performance Tests Before reaching the test bench, the work involving seals and profiles begins much earlier: What the Market Is Asking for Today Developers, architectural studios and system manufacturers consistently demand: For this reason, working with manufacturers capable of developing a tailor-made seal for your curtain wall system—accompanying you from the first sketch to the final test—is increasingly valued. In fact, global façade market reports point in exactly this direction: more sustainable envelope solutions, improved thermal performance and greater integration of intelligent technologies in curtain walls and façade systems. If you are designing a light façade or preparing your system for air/water/wind tests, ISOGOM can support you with customised seals and profiles, along with flexible production through our rubber and thermoplastic extrusion lines. Preparing your next façade test? Let’s talk about the seal you need to pass it on the first attempt. Contact us.

In lightweight façade or curtain wall systems, watertightness depends both on the design of the aluminium profile and the accompanying rubber seal. A correctly sized and positioned seal ensures that water, air and noise are kept out, even in the most demanding conditions. In this article, we will look at how joint geometry, seal compression and drainage channels work together to achieve a watertight and durable façade. The role of rubber seals in curtain walls Rubber seals for aluminium windows not only seal the joint between the glass and the profile: they are also responsible for absorbing tolerances, cushioning expansion and conducting water to the outside. In a curtain wall, the aluminium profile is designed to support the glass without direct contact. The seal is placed between the two, acting as a flexible layer of waterproofing and cushioning. In this way, the assembly withstands thermal movements and vibrations without compromising airtightness or aesthetics. The most commonly used material is EPDM, due to its excellent resistance to UV rays, rain and temperature changes. There are also co-extruded TPE gaskets, which combine a rigid body and flexible lip for faster installation and uniform closing pressure. Gasket geometry: more than just rubber Each type of gasket is designed for a specific function. Three types are mainly used in curtain walls: The correct lip geometry and hardness are key. A seal that is too soft will not maintain the necessary pressure; one that is too rigid will prevent the glass from fitting properly and could cause leaks. Drainage and water pressure A good lightweight façade design does not attempt to block water 100%, but rather to control its flow. For this reason, the profiles incorporate channels and holes that allow accumulated water to drain to the outside. The joints help to direct this flow. The outer lip acts as a deflector, while the space between the joints forms a pressure chamber that balances the air and prevents water from penetrating through capillary action. In this way, even under heavy rain or wind pressure, the system remains watertight and allows water to drain away without seeping inside. Assembly and tolerances of glass and profile The correct assembly of the seals is as important as their design. Before installation, the following must be checked: Poor installation, for example, a stretched seal or a dirty channel, can ruin the entire sealing job, even with top-quality materials. Materials and maintenance Rubber seals for aluminium window glass made of EPDM or TPE offer long life and stability against UV rays. It is recommended to check their condition periodically, especially in areas that are highly exposed to the sun or rain. If the rubber has hardened, cracked or turned white, it is time to replace it. Replacing it in time prevents leaks and maintains the thermal and acoustic performance of the curtain wall. > More info on gaskets for aluminium windows. > More info on gaskets for taps. Do you need rubber seals for your project? At ISOGOM, we manufacture and extrude rubber seals for aluminium windows and curtain walls adapted to each profile and construction system. We offer solutions in EPDM and TPE with customised geometries, technical advice and quality control throughout the process. Request a quote

When you miss out on valuable features for your industrial and automotive rubber extrusions, you expose future products to a shorter lifespan and worse performance. Fortunately, we have a list of the most important details to keep an eye out for. We founded ISOGOM with a strict adherence to industry standards of quality, from our certifications to our premium materials. Before you invest in an automotive manufacturing partner, make sure they check off these 5 details to enjoy improved performance and longevity. 1.  Trustworthy Certification Any brand can say they provide strict quality control, but how do they prove it? Without third-party oversight, you risk investing in automotive materials that haven’t passed strict quality checks and have a higher risk of failing. ISOGOM recently achieved the UNE EN ISO 9001:2015 certification, a worldwide recognition for quality management. Businesses that achieve this certification have consistently shown their dedication to reliable quality control processes, trained staff, and continuous technological improvement. 2.  Cutting-Edge Technology Even the most skilled workers need the latest technology to create automotive and industrial rubber seals you can count on. We rely on a mixture of high-end co-extruders, mono-extrusion, and automatic winding machinery to craft products for the transportation and automotive industries. Thanks to our tools, we create durable industrial and automotive sealing rubbers that hold up to UV rays, moisture, and continuous friction. 3.  Diverse Range of Services Do you also need help with crafting custom profiles or putting together special packaging? Alongside providing a reliable suite of industrial and automotive rubber extrusions, we provide a diverse range of services to save you time on your projects: ●  Pre-continuous cut joints ●  Custom profile marking for your brand ●  Placing adhesive material ●  Special packaging ●  Bonding and vulcanizing 4.  Automotive Industry Expertise When you invest in a business, you also invest in its years of hands-on experience and specialty knowledge. We’re proud to act as a trustworthy partner for transportation and automotive businesses that need in-depth feedback or creative insight into their projects. We have several years of experience providing rubber seals, custom profiles, and specialized packaging for the automotive industry. Body trucks, refrigerated chambers, and carpentry are just a few of the areas we specialize in. One way or another, we’re determined to go above and beyond meeting your expectations for industrial rubber seals. 5.  Premium Materials and Warranty Last, but not least, we only use the best raw materials for our industrial and automotive rubber extrusions. Without this commitment to premium rubber and plastic, your products would more quickly lose their strength and durability when exposed to repeat handling, friction, or temperature changes. From nitrile rubber to silicone, we only source from leading brands to ensure consistent performance. When you work with us, you’ll enjoy a warranty of at least ten years from the manufacturing date of constructing your profiles (as well as in-depth guides to protect the quality of your investment). Partner With ISOGOM for Automotive Rubber Extrusions Missing even just one of these details could result in products with shorter lifespans and fewer happy customers. When you need industrial and automotive rubber extrusions, we’re only a click away. ISOGOM remains one of the industry’s leading manufacturers for long-lasting products with superior performance. Ready to invest in sealing rubbers or have any questions about our industrial rubber extrusions process? Contact us today.