SEM Products

About SEM Products

SEM Products has been a cornerstone of the automotive refinishing world since 1948. Founded as Sneckner Elliott Manufacturing in Belmont, California, the company set out to deliver high-quality paints before quickly pivoting to serve the demands of automotive body shops, aerospace facilities, marine repair yards, and industrial operations. Today, SEM is headquartered in Rock Hill, South Carolina, where its team continues to engineer coatings that solve real-world problems on the shop floor.

What separates SEM from the competition is a relentless focus on innovation. The brand pioneered Topper, the first flexible coating designed to restore or change the color of vinyl car tops — a breakthrough that launched a long legacy of industry firsts. They later revolutionized interior refinishing with Color Coat, the first flexible coating mixing system that allowed technicians to custom-match colors for automotive vinyl, plastic, carpet, and velour. That spirit of problem-solving has never slowed down.

SEM's product engineering philosophy centers on reducing repair time, minimizing steps, and cutting waste — values that matter enormously in professional shop environments. It is no surprise, then, that the brand has earned 53 OEM recommendations covering over 200 products, spanning categories from adhesives and seam sealers to undercoatings and specialty coatings. Whether you are a seasoned collision technician or a detail-oriented DIY restorer, SEM's catalog is built to meet professional standards.

SEM's Core Product Categories

SEM's lineup covers virtually every phase of a refinishing job. Their Specialty Coatings & Paints represent the brand's most innovative formulations — from flexible coatings engineered for plastic substrates to stone guard and undercoating systems that protect against the elements. For tasks requiring aerosol convenience, SEM's Spray Paints range from OEM-matched factory colors to bold custom candy finishes, all engineered to deliver professional-grade results in an easy-to-use format.

Surface preparation is just as critical as the topcoat, and SEM's Primers & Sealers and dedicated Primers lineup address every substrate from bare metal to flexible plastic. Products like the Ez Coat system replicate OEM e-coat finishes, while flexible primer surfacers ensure topcoats bond to bumper covers and trim pieces without cracking. Rounding out the portfolio, SEM's Interior Paints — including the legendary Color Coat and Sure-Coat lines — have become the go-to standard for restoring faded or damaged vinyl, leather, fabric, and hard plastic surfaces to like-new appearance.

Many SEM formulas are also engineered to be low-VOC and compliant with current environmental regulations, making them a responsible choice for shops operating under strict emission standards without sacrificing coverage, flow, or durability.

Why Professionals Trust SEM

• Over 75 years of continuous innovation in refinishing chemistry
• 53+ OEM recommendations across more than 200 products
• Industry-first flexible coating and custom mixing systems
• Formulas designed to reduce steps, save time, and minimize waste
• Full-spectrum lineup from prep and prime through specialty topcoats
• Low-VOC options compliant with current environmental standards