The Power of the Bulb: Elbex's Custom Rubber Seals for Watertight and Airtight Solutions

David Garman • September 12, 2025

Across industries, reliable seals that can handle water, air, and temperature fluctuations are essential. As an expert manufacturer of rubber bulb seals and specialized silicone rubber seals that can be used as bulb gasket seals, Elbex helps you create superior barriers for a wide range of manufacturing applications.


The Unique Design and Sealing Power of Bulb Seals


Bulb seals get their name from their unique design, which includes a mounting mechanism (base), as well as a compressible bulb section. After it has been put in place, the bulb section compresses against the surrounding surface area to fill a void or gap. This creates a tight, powerful seal that blocks air, dust, water, and other contaminants.


Elbex's Expertise in Custom Bulb Seal Manufacturing


Elbex’s custom bulb seal manufacturing expertise ensures that your rubber bulb seals meet all performance requirements for strong, durable results. This starts with our knowledge of which rubber materials work best for different applications and environmental factors. For example, silicone rubber seals work well for applications requiring extreme temperature resistance, flexibility, and resistance to environmental factors.

Our custom design and engineering capabilities enable us to accommodate nearly any application, ensuring a perfect fit and reliable performance based on your unique specifications. Comprehensive quality control further ensures that your rubber seal will meet and even exceed expectations, achieving proper compression while resisting issues like compression set.


Versatile Applications Across Industries


Rubber seals are found in many different industries, highlighting the versatile nature of these components. For example, rubber seals are most commonly used around doors, windows, and hatches to provide a tight seal against air, sound, and dust (including in vehicles and appliances).

However, bulb gasket seals are also used to create tight water barriers in marine applications, outdoor electrical enclosures, and storage compartments. Silicone rubber seals can also help contain extreme heat or cold in industrial mixing, processing, and food service applications.


Why Elbex is the Premier Choice for Bulb Seals


If you need bulb seals, make Elbex your manufacturing partner. With unmatched customization options, comprehensive material expertise and engineering support, and guaranteed quality, our team will help your application succeed. Contact us today to discuss your specific application needs and learn more about the sealing power of our custom-designed seals.

By David Garman August 29, 2025
Today’s appliances need to perform at a higher standard than ever – and seals and gaskets play a vital role in making that possible. Specialized appliance gaskets and appliance seals deliver reliable barriers against heat, cold, and other hazards. As a leading provider of high-quality appliance rubber extrusions, Elbex’s custom extruded rubber gaskets for appliance manufacturing will provide the performance you need. The Essential Role of Rubber in Appliance Performance Gaskets and seals create a reliable barrier that keeps appliances functioning properly. These barriers fill a wide range of roles, such as preventing leaks in washing machines and dishwashers, helping refrigerators and ovens maintain desired temperatures, and securing components and eliminating vibrations in washers and dryers. Notably, these extrusions must be able to perform with exposure to water, extreme heat and cold, and other hazards. Elbex's Expertise in Custom Appliance Extrusions At Elbex, our team takes a collaborative approach in creating custom appliance extrusions for your business. We draw on our deep knowledge of different rubber compounds to select materials that meet industry and regulatory standards. For example, while silicone is best for high heat/food contact, EPDM is better for weather/water resistance. Materials expertise is paired with an advanced extrusion process, which forces uncured rubber through custom dies to create precise, fully cured profiles. Rather than carrying an inventory, we custom-manufacture every product to meet your exact requirements, ensuring superior stability and performance. Versatile Appliance Applications & Custom Profiles Appliance gaskets (which are static surfaces) and seals (which are moving parts) fill many roles in the appliance industry. Formed hoses and water resistance seals in washing machines and dishwashers, air barrier seals in refrigerators and ovens, and even blender lid seals provide necessary containment for appliances. Gaskets and seals can also eliminate vibrations and secure components. Our custom profile options include extruded gaskets and seals, bulb seals, custom extruded rubber d-sections, and custom extruded ribbed profiles. Each of these options can aid with filling voids, creating seals/barriers, reducing vibration, and more. Elbex's Unwavering Support and Resources Working with Elbex means you get a team that is committed to the success of its customers. Our team is ready to assist right from the start, offering guidance on materials selection and design assistance (including additional technical resources) to ensure the design and finished components meet your performance requirements. By doing all custom tooling in-house, we can also deliver our results faster and cheaper than if the work was outsourced, even while maintaining extremely high quality standards.  With our extensive expertise in high-quality appliance rubber extrusions, including appliance gaskets and appliance seals, you can count on Elbex to help ensure that your appliances are reliable and compliant for your own customers. To learn more about our custom extruded rubber gaskets for appliance manufacturing, contact us today.
By David Garman August 22, 2025
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By David Garman August 15, 2025
It’s all too common for off-the-shelf-parts to fall short of what you need. This makes designing custom rubber extrusion profiles for specific applications an absolutely critical aspect of getting the precision and unique functionality you need for each application. As a premier provider of customized extrusion solutions, Elbex can provide custom rubber extrusion designs that are perfectly tailored to your needs. The Elbex Philosophy: Every Application Is Unique At Elbex, we understand that every application is unique. We actively listen to your specific project requirements so we can understand your exact needs. Whether you have a detailed drawing, a simple sketch for quoting, or even a physical sample for reverse engineering, we can use it as a baseline for getting started. With our team’s knowledge, we can then recommend the most suitable design, material, and manufacturing approach for your component. “Hands-On” Engineering: Your Dedicated Project Quarterback After you request a quote, we assign a dedicated engineering team leader (your "quarterback") to your project. This person takes the lead on your project with all communication and oversight to ensure timely and satisfactory completion. From plan visits and field support to in-depth tooling and engineering setups conducted at our facilities, your team lead will make it happen. Unmatched Resources for Customization and Efficiency Elbex offers a wide range of resources to help your project succeed. Our in-house custom tool and die design services lower costs and allow us to provide turnaround times of days, rather than weeks. Our experts will help you select the right materials to ensure proper performance for your specific application and environment. We also provide a variety of technical resources (as well as the expertise of our own team) to fine-tune new designs or troubleshoot issues. The Elbex Advantage: Why Tailored Solutions Excel Custom solutions always deliver better results than standard designs. With Elbex, you get precision and performance that are optimized for your application. We seek to be a proactive partner who will help you address design challenges, while also guaranteeing a high level of quality with our hands-on approach. This fully integrated in-house approach ultimately saves you time and money – even as you get better results. With our team’s unwavering commitment to designing custom rubber extrusion profiles for specific applications and our ability to deliver customized extrusion solutions, you can count on Elbex to provide the components you need. Contact us today to bring your next rubber extrusion project to life by calling 877-302-0423 or filling out our online RFQ form.