• 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

    We’ve been in business for more than 65 years and we promise to continue to deliver quality American made products.

New Products

  • World Class™ HS Urethane Primer

    World Class HS Urethane Primer is a premium, high build, two-component, urethane primer formulated for use on automotive substrates.  

  • 1K Sprayable Seam Sealers

    1K Sprayable Seam Sealer is a high performance, modified silane polymer seam sealer for duplicating OEM sprayed seams and sound dampening pads. 

  • World Class™ DTM Primer

    World Class DTM Primer is a compliant, two-component epoxy that provides bare metal adhesion and filling in one product.

  • World Class™ Waterborne Flexible Primer

    World Class Waterborne Flexible Primer is a water-based elastomeric surfacer designed for automotive bumper refinishing.  

  • 1K Sprayable Seam Sealer Applicator

    A premium applicator specifically for SEM 1K Sprayable Seam Sealers

  • 1K Extrusion Nozzles

    Specialty tip for creating various bead sizes with our 29442 1K Sprayable Seam Sealer Applicator. Use with aluminum beading cap attached.

  • 1K HS Semi-Gloss Clear

    1K HS Semi-Gloss Clear is a mid-gloss, aerosol, acrylic clearcoat for duplicating OEM lower gloss panels.

  • 1K Door Skin Nozzles

    Specialty flanged tip that quickly duplicates the appearance of door skin seam sealer beads. Use with 29442 1K Sprayable Seam Sealer Applicator with aluminum beading cap attached.

  • Heavy Bodied White Seam Sealer

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