What is the relationship between Ultramarin and the historical IMGRAD Ljutomer?

Ultramarin d.o.o. is the technological successor to IMGRAD. The expertise in GRP composites and surface protection, dating back to 1950, has been significantly upgraded since then. The engineering foundation from the era of the K67 modular kiosk has been updated with modern technologies, enabling much higher precision and compliance with contemporary industrial standards.

In which regions does the Ultramarin Group operate?

The Ultramarin Group has a strong regional footprint in Central and SE Europe. Primary manufacturing and development facilities are located in Slovenia, supported by strategic subsidiary operations in Serbia and Bosnia and Herzegovina. This allows for optimized logistics and competitive manufacturing for global partners.

Which industrial sectors does Ultramarin primarily serve?

The Ultramarin Group provides vertically integrated solutions for the marine (luxury yachts and workboats), automotive (emergency and light vehicles), and agricultural machinery sectors. Specialized surface protection is also provided for the construction and architecture industries through the powder coating division.

The Protection Protocol

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The Science of Substrate Adhesion

Interfacial integrity is a significant factor in coating longevity. At Ultramarin, we recognize that surface protection requires the right chemical and mechanical preparation.

Chrome-Free Chemical Pre-treatment (Aluminium and galvanized metals)

Surface preparation is the primary variable in coating failure. We utilize an advanced immersion tank system for the chrome-free treatment of aluminium and galvanized metals prior to powder coating. This chemical process creates a high-quality protective layer that is ecologically sound and environmentally friendly, certified to GSB and Qualicoat standards for aluminium. It ensures superior paint adhesion without the use of hazardous chemicals.

Mechanical Pre-treatment & Sandblasting

For steel structures, iron, and industrial castings, we utilize abrasive sandblasting to remove rust, oxides, and surface impurities. This process creates an ideal surface profile for electrostatic bonding. By controlling the surface preparation, we ensure the mechanical strength of the coating on rough industrial materials.

Thermal Polymerization

Following electrostatic application, components undergo thermal polymerization in our controlled ovens at temperatures ranging from 160 °C to 200 °C. Utilizing premium Austrian-made TIGER Drylac polyester powders (Series 67 and 68), we ensure that the final finish is highly UV-resistant and can withstand temperatures up to 120 °C. The quality of our workmanship fully complies with the RAL RG 631 certificate.