This isn’t about new products — it’s about the know-how you only get from decades on the shop floor. Because we know better than most companies that second chances cost time and money. That’s why we created DURAMIX™. Backed by Seymour of Sycamore’s 75 years of experience in paints, coatings, and now structural repair, DURAMIX™ is a full system of seam sealers, adhesives, and foams built for how real shops work. No fluff. No shortcuts. Just the right tools to get the job done right — the first time.
Professional Performance, Inside and Out
DURAMIX™ by Seymour includes a complete range of 1K and 2K products designed for every stage of the repair process. From sealing floor pans and roof seams to bonding door skins and repairing plastic bumpers, each formula is tuned for professional-level performance. The line features:
• 2K and 1K Seam Sealers
• Flexible and Rigid Plastic Repair Adhesives
• Panel Bond Adhesives
• Urethane Foams (Flexible & Rigid)
• Static Mixers and Applicator Guns
Designed to meet the demands of every job, Seymour’s DURAMIX™ line of products deliver a complete repair solution — every texture, every bead, every adhesive and everything in-between.
Cartridge-Based System: Speed Meets Accuracy
At the heart of the DURAMIX™ line is Seymour’s 2K cartridge technology — a self-mixing, two-component delivery system that ensures proper ratio, consistent curing, and minimal waste. There’s no manual mixing or guesswork. Just load the cartridge into the applicator, attach the static mixer nozzle, and go. Technicians can produce clean, uniform seams and strong, reliable bonds with speed and confidence.
DURAMIX™ is designed for complete shop efficiency: No time lost to mixing errors, no mess, and no waiting for product to activate. It’s always ready for the next job.
OEM-Matched Appearance and Durability
DURAMIX™ products are formulated to match factory-grade seam sealers in texture, flexibility, and color. Seam sealers are non-sag and hold their shape for horizontal and vertical applications, making it easy to duplicate OEM seams on trunk floors, drip rails, wheel wells, and more.
Technicians can tool or texture DURAMIX™ seam sealers to match the original finish, ensuring that repairs blend in seamlessly with the factory look. After curing, the sealers retain flexibility to withstand vehicle vibration, expansion, and contraction — without shrinking, cracking, or pulling away from the substrate.
Flexible Work Times. Zero Compromises.
Different jobs call for different setup speeds, and DURAMIX™ gives shops the flexibility to choose. The product line includes fast-set options that cure in minutes — ideal for high-throughput shops — as well as extended work-time variants for more complex or detail-sensitive repairs. Regardless of the formulation, every DURAMIX™ product is designed to deliver strong adhesion, excellent feather-edging, and compatibility with common refinish systems.
Engineered for the Real World
Seymour’s DURAMIX™ was built with technician workflows in mind. From the clean, easy-to-handle cartridges to the broad chemical compatibility with today’s primers and topcoats, the line is engineered to eliminate downtime and keep repairs moving forward.
We’re not some nameless mega-corp. We’re Seymour of Sycamore — the family-owned, third-generation company that invented aerosol spray paint back in 1949 and has spent the last 75 years advancing what coatings can do. We’ve built our reputation in the work bay, not the boardroom. Every product we make — whether it’s undercoating, engine enamel, rust converters, or now epoxy seam sealers — is engineered with that same commitment to reliability, value, and shop-floor performance.
We know what it’s like to have a car in the bay and a customer on the line. You need products that work, every time. That’s why DURAMIX™ is about more than just good chemistry — it’s about giving collision repair pros the tools they need to finish strong.
Because in this line of work, there’s no room for second guesses.
Learn more about the full DURAMIX™ product lineup at www.seymourpaint.com/product-line/duramix.
