As one of the most respected names in the industry, National has built a reputation for excellence. For over 75 years, we have offered premium sealing solutions to our customers. Our design team stays at the forefront of industry developments, providing advanced solutions to meet the needs of today's vehicles.

Our sealing solutions feature a springless, single-lip design, offering a wide temperature range of -40°F to 225°F (-40°C to 107°C). This robust design ensures good low-temperature capability, and minimal swelling in hydrocarbon fluids, delivering the quality and reliable performance required for every type of repair.

At National, we are committed to providing our customers with the best possible sealing solutions. Our extensive industry knowledge and dedication to innovation allow us to anticipate and address the evolving needs of the automotive industry. Whether it's a complex application or a routine maintenance task, our customers can rely on National's products to deliver the performance and durability they demand.

Backed by decades of experience and a reputation for excellence, National continues to be a trusted partner for sealing solutions. Our design team works tirelessly to stay ahead of industry trends, ensuring that our products meet the ever-changing needs of today's vehicles. With a focus on quality, reliability, and innovation, National is the go-to choice for premium sealing solutions.

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