UV-Curable Masking for Precise Surface Protection
UV-curable masking materials from Hoenle (formerly Panacol) provide reliable, temporary surface protection during demanding industrial processes. Ideal for blasting, peening, chemical stripping, plating, anodizing and other surface treatments, they protect selected areas with precision.
Applied as liquids or gels, the materials adapt to complex geometries and cure within seconds under UV light. Traditional masking materials such as tapes, lacquers, and waxes can be labor-intensive to apply or provide inconsistent protection. Hoenle UV masking materials create a protective barrier exactly where it is needed, including on edges, contours and cavities. Their fast curing and flexible application methods support efficient, repeatable manufacturing processes. Depending on the application, the cured mask can be removed residue-free by peeling, water dissolution or thermal treatment.
Precision Masking With UV Curable Materials
Hoenle’s family of UV light curable mask materials can be easily applied. A single application of the uncured liquid mask by syringe, brush, dip, or spray. The masks are available in many viscosities to accommodate a wide variety of component configurations and applications.
The UV maskings cure within seconds under UV or visible light sources. The cured masking provides consistent protection from high impact particulates, hot acids, alkali solutions, plating, and paint during surface treatment processes.
After surface treatment, the maskings can be easily removed residue-free by peeling, dissolving, or incinerating, depending on the masking product.
Key benefits of UV maskings:
- High precision: Protect selected surfaces, edges and cavities.
- Fast curing: Cure within seconds under suitable UV light.
- Flexible application: Apply by syringe, brush, dipping, spraying or automated dispensing.
- Reliable protection: Formulations designed for specific mechanical, chemical and thermal conditions.
- Fast and residue-free removal

Holes are protected using a liquid uv masking before surface treatment
From Application to Removal in Seconds
UV-curable masking combines precise application, rapid curing and clean removal. This streamlined process can help reduce cycle times and integrate masking into existing production lines:
1. Apply
Apply the liquid mask by syringe, spraying, dipping or automated dispensing, depending on the component and production requirements.
2. Cure
Use a compatible LED-UV or broad-spectrum UV system to cure the material within seconds.
3. Process
Carry out the required surface treatment while the cured mask protects designated areas.
4. Remove
Remove the mask by peeling, hot-water dissolution or thermal treatment, depending on the formulation and application.
Our UV Maskings For Industrial Surface Treatments
Hoenle offers UV-curable masking materials for a wide range of surface treatment processes, with formulations tailored to different process conditions and protection requirements.
| UV Masking | Usage | Viscosity [mPas] | Base | Curing | Special Properties | Removal Method |
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200-400 (Brookfield LVT, 25 °C, Sp. 2/ 60 rpm) | acrylate | UV/VIS |
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10,000-40,000 (Rheometer, 25 °C, 10s^-1) | acrylate | UV VIS secondary heat cure |
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20,000-24,000 (Rheometer, 25 °C, 10s^-1) | acrylate | UV/VIS |
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14,000-17,000 | acrylate | UV VIS |
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40,000-60,000 (Rheometer, 25 °C, 10s^-1) | acrylate | UV VIS |
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140-155 (Rheometer, 25 °C, 10s^-1) Newtonian fluid | acrylate | UV/VIS thermal postcure |
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13,000-16,000 (Rheometer, 25 °C, 10s^-1) | acrylate | UV/VIS |
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8,000-15,000 (Rheometer, 25 °C, 10s^-1) | acrylate | UV VIS |
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22,000 (Rheometer, 25 °C, 10s^-1) | acrylate | UV/VIS |
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6,000 (Kinexus Rheometer, 25 °C, 10s^-1) | Acrylate | UV / VIS |
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*UV = 320 – 390 nm VIS = 405 nm
Typical Applications For UV Maskings
Hoenle offers UV-curable masking materials for a wide range of surface treatment processes, with formulations tailored to different process conditions and protection requirements.
Our Masking and Curing System Solutions
The choice of the ideal masking material depends on the surface treatment, component geometry, required adhesion and removal method.
Hoenle combines application-specific masking materials with compatible UV curing systems to help you find the right solution for your process.
Ask our experts about our one-stop UV masking system solutions.
Contact And Support
Do you have any questions or need support for our masking solutions? Ask our experts.
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