• About SEM

    SEM is a leading manufacturer of innovative paints, adhesives and coating products. Our products are developed to exceed your automotive, aerospace and marine repair and refinishing needs.

  • Tech Support

    If you ever need any help or have questions about our products, feel free to call our technical support line. You’ll be greeted by a real person right away. Go here to get in touch.

  • Made in the USA

    All of our products are proudly formulated and packaged in Rock Hill, South Carolina. We’ve been in business for more than 65 years and we promise to continue to deliver quality American made products.

New Products

  • Heavy Bodied White Seam Sealer

    Heavy Bodied White Seam Sealer seals interior or exterior joints and voids for painting in 30 minutes. Isocyanate free.

  • Carbo Fill+

    Carbo-Fill+ is a water and rust proof carbon fiber enriched filler that offers exceptional cosmetic and structural repairs for metal, SMC, FRP, HPA and PPO/PA without the risk of swelling the substrate.

  • Rock-It Liner™ Kits

    Rock-It Liner is a high quality urethane textured coating that provides a durable protective finish for truckbeds and restoration projects.

  • World Class™ HS Urethane Primer

    World Class HS Urethane Primer has high solids, no shrinking, and excellent color holdout make this a great primer to work with. It comes in quarts and gallons with slow, medium, and fast activators.

  • World Class™ Waterborne Flexible Primer

    World Class Waterborne Flexible Primer is perfect for bumpers. It is an excellent barrier coat while retaining flexibility. This ready-to-spray primer is available in quarts.