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UV coating systems

Product catalog summary

Overview of UV Coating Systems
UV coating systems are characterized by short curing times, high productivity, low emissions, and excellent mechanical resistance. These systems are particularly effective for overcoating UV inkjet inks, providing protection against environmental and mechanical stresses.

Specifications of FREODUR UV-Clearcoat ES1939GRA999

Binding Agent Basis: Urethane acrylate
Monomer: Monofunctional and difunctional
Photoinitiators: Long and short wave
Viscosity: 500 mPas
Application: Automatic spray-coating machine, hot-spray process at 60°C, air-assisted nozzle 0.12 mm
Dry Film Thickness: 50 - 60 µm
UV Curing: Ga-doped and Hg-emitter 120 W/cm each, belt speed = 4 m/min
Radiation Dose: UVA 1,300 mJ/cm², UVB 1,470 mJ/cm², UVC 370 mJ/cm², UVV 2,500 J/cm²

Application and Compatibility
FREODUR UV-Clearcoat ES1939GRA999 is designed for use on metal surfaces with various primers, offering excellent adhesion to substrates such as FREOPOX powder coating PB1204ARA910, FREODUR UV primer ES1919, pretreated aluminium, and UV inkjet ink.

Properties and Testing
UV-cured coatings have high crosslink density, providing superior mechanical and chemical properties. Key tests and results include:

Scratch Hardness Test: Diamond 0.5 N, 1 mm ball 5N
Taber Abraser Test: 1.9 mg loss
T-bend Test: 1.5 T on 0.5 mm aluminium
Climate Change Test: Adhesion Gt1, no bubble formation
Salt Spray Test: Adhesion GT0, creepage 2 mm
Condensed Water Test: Adhesion Gt0-1, no bubble formation
WOM Test: Delta E 1.05, residual gloss 60%
QUV-B313 Test: Delta E 1.12, residual gloss 90%
Chemical Resistance: No effect from Ecolab MikroBac III, Sanichlor, MEK
Sunscreen Resistance: Minimal effect from various SPF products

Advantages of UV Coating Systems

Low emissions and 100% solids content
Short curing times and high productivity
Low energy consumption
High mechanical resistance
Recyclability with no pot life or solvent evaporation
Suitable for temperature-sensitive materials

Applications
UV coating systems are suitable for two-dimensional metal panel coatings, such as wall and display coatings, and are applied using spray guns or rollers. They are a viable alternative to solvent-based systems, offering environmental benefits and high performance.

Contact Information
For more information, contact Emil Frei GmbH & Co. KG at [email protected] or visit www.freilacke.com.

Catalog excerpts

UV coating systems Our UV coating systems are distinguished by very short curing times combined with very high productivity, fewer emissions and excellent mechanical resistance.

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UV clear coat systems for overcoating UV inkjet inks Digitally printed surfaces require a finishing coat to protect them against both the elements and mechanical loads. The excellent adhesion of the overcoated coating system to individual inkjet inks, as well as to substrates and primers, poses the greatest challenge here. We have specifically adapted FREODUR UV- Clearcoat ES1939GRA999 to this requirement. FREODUR UV-Clearcoat ES1939GRA999 can be applied on top of metal surfaces that have been primed in various ways. IT has excellent adhesion properties on the following substrates: ■ FREOPOX...

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Chemical and mechanical properties UV-cured coating systems have a very high crosslink density, resulting in excellent mechanical and chemical properties. The properties of FREODUR UV-Clearcoat ES1939GRA999 are shown in the following table:

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Optimum properties for the overall system coating structure are achieved by precisely matching every coating and inkjet ink. A great deal of attention should be paid to choosing the right UV inkjet inks here. Areas of application for our UV-curable coatings span all areas of two-dimensional metal panel coating, e.g. wall and display coating. Examples for UV coating systems: Sanitary installations, e.g. in discos The coatings are applied using a spray gun or roller. UV coating systems offer users various advantages: ■ Low emissions, 100% solids content ■ Short curing times, high productivity ■...

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UV coating systems: a real alternative! The pressure that legislation is placing on users of solvent-based coating systems is always on the rise, which is why the use of environmentally friendly coating systems is increasingly coming to the fore. UV coating systems are a great alternative here. They are distinguished by very short curing times combined with very high productivity, fewer emissions and excellent mechanical resistance. Radiation sources that emit ultraviolet light are used to dry the coatings. After a short burst of high-energy radiation, the UV coating systems are cured and the...

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Mechanical engineering Functional furniture and storage technology Emil Frei GmbH & Co. KG Döggingen Am Bahnhof 6 78199 Bräunlingen Germany Tel. Fax [email protected] www.freilacke.de Are you interested? Then get in touch with our experts. Emil Frei GmbH & Co. KG Döggingen Am Bahnhof 6 D-78199 Bräunlingen Phone + 49 . 77 07 . 151- 0 Fax + 49 . 77 07 .

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