[INQ. NO. 2507M29] Seji Solotech Inc. is a company certified with ISO 14001:2015 and IATF 16949, holding multiple patents related to surface treatment and molding technologies.
Seji Solotech manufactures automotive interior components by using various film and surface treatment technologies, including Film Insert Molding (FIM), In-Mold Labeling, In-Mold Decoration (IMD), Three-Dimensional Overlay Method (TOM), and Hot Stamping. Molds are designed and produced in-house.
Backlighting and hidden lighting allow the company to implement ambient lighting, a growing trend in automotive design. Seji Solotech also supports sustainability by using eco-friendly film.
Among Seji Solotech’s various film and surface treatment technologies, film insert molding is a process that inserts a printed film into the mold and decorates the surface during the injection molding process. Although the film insert molding process requires high-precision film control and retooling in case of design changes, it offers significant advantages by integrating decoration and molding into a single step. It allows for flexible and high-quality designs, excellent durability, and the incorporation of various lighting effects.
Additionally, as environmental regulations become stricter, film insert is emerging as a viable alternative to painting, plating, vacuum deposition, and water transfer printing.
In particular, TOM (Three-Dimensional Overlay Method) overcomes the limitations of conventional insert films — such as thickness and limited stretchability — by wrapping specially engineered films over molded parts. This allows for the decoration of complex or sharply contoured surfaces that are difficult to achieve with traditional film insert methods.
Additionally, TOM enables the expression of rich surface textures and visual depth, offering a more refined and premium tactile and aesthetic experience in automotive interiors.
Using high-pressure forming, Seji Solotech can precisely implement lighting or patterns in fixed areas — such as PRND (gear indicators) — with no risk of peeling, as the films use highly durable inks.
Seji Solotech’s film-based surface technologies have already been successfully applied in a variety of global vehicle models, including the Renault Grand Koleos, GMC series, and Hyundai’s Genesis GV70, GV80, IONIQ 5, and Palisade ― proving their versatility and reliability in mass-production environments.
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