UV Masking Materials for for Efficient Metal Finishing

UV-curable masking materials from Hoenle (formerly Panacol) offer a modern alternative to traditional tapes, waxes, and solvent-based coatings used in metal finishing. Conventional masking is labor-intensive and inconsistent, often leading to higher costs from rework and scrap.

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Hoenle UV Maskings Brochure

Fast UV Curing Reduces Labor and Cycle Times

Hoenle provides highly resilient UV masking materials that can be dispensed manually or automatically to protect surfaces and cavities during processes such as blasting, machining, plating, and stripping. This technology significantly reduces labor and processing time.

All Hoenle UV masking materials can be cured with Hoenle LED or broad spectrum UV curing systems. The mask hardens in seconds into a tough, flexible barrier — fast enough to run in line with existing production instead of as a separate offline step.

Hoenle UV Masks are also used for:

Temporary sealing during airflow or functional testing
Protecting internal cavities during laser drilling
Shielding surfaces during transport
Extending fixture life by replaceable protective coatings

A greenish masking protects parts of the metal during surface treatment (Photo credit: AdobeStock/kimtaro)

UV Masking Vitralit dissolving in hot water bath

A masking material dissolves in hot water bath (Photo credit: Permapack)

Flexible Removal Options For any process

Remove the temporary mask using the method matched to material and process. Each UV masking supports one or multiple removal methods:

Peel Removal: Low-adhesion masks peel at room temperature; high-adhesion masks require a short hot-water soak.
Water Dissolution: Water-soluble masks easily dissolve with agitation or ultrasonics, ideal for small parts and light finishing.
Incineration (above 500°C/900°F): Ideal for combining with heat treatment steps; leaves residue-free surfaces.

Find the right UV masking For your application

Explore the product brochure or contact Hoenle Applications Engineering for expert guidance in selecting the ideal UV masking material.

To download the technical datasheets (TDS) please click on the adhesive name.

UV-Masking	Viscosity [mPas]	Base	Curing	Special Properties	Additional Features
Vitralit® MASK 20100	200-400 (Brookfield LVT, 25 °C, Sp. 2/ 60 rpm)	acrylate	UV/VIS	Moderate adhesion Used for steel, aluminum, titanium, nickel and cobalt Water soluble mask, dissolves in hot water	Dissolve in hot agitated water
Vitralit® MASK 20101	10,000-40,000 (Rheometer, 25 °C, 10s^-1)	acrylate	UV VIS secondary heat cure	Hard, very high adhesion, acid resistant Used for maskings on nickel alloys and steel	Incinerate @ 900°F or higher (approx. 500°C)
Vitralit® MASK 20102-G-Gel	20,000-24,000 (Rheometer, 25 °C, 10s^-1)	acrylate	UV/VIS	High viscosity, green color Good adhesion to steel, aluminium, titanium, nickel and cobalt Removable with hot water	Peel after hot water soak (2-3 minutes @ minimum 150°F/65°C)
Vitralit® MASK 20104	14,000-17,000	acrylate	UV VIS	Translucent, moderate adhesion	Peel @ room temperature
Vitralit® MASK 20107	40,000-60,000	acrylate	UV VIS	Moderate adhesion	Peel after hot water soak, 2-3 minutes @min. 122°F/50°C
Vitralit® MASK 20109	15,000-40,000	acrylate	UV VIS	Low adhesion	Peel @ room temperature
Vitralit® MASK 20110	40,000-60,000 (Rheometer, 25 °C, 10s^-1)	acrylate	UV VIS	Thixotropic Flexible Low adhesion	Peel @ room temperature
Vitralit® MASK 20111	30,000-50,000	acrylate	-	Mask for protective coatings, wave solder, white color	Peel @ room temperature
Vitralit® MASK 20114	140-155 (Rheometer, 25 °C, 10s^-1) Newtonian fluid	acrylate	UV/VIS thermal postcure	Low viscosity cavity fill Residue-free removal by incineration	Incinerate @ 900°F or higher (approx. 500°C)
Vitralit® MASK 20116	50,000-70,000	acrylate	-	High viscosity cavity fill	Incinerate @ 900°F or higher (approx. 500°C)
Vitralit® MASK 20117	13,000-16,000 (Rheometer, 25 °C, 10s^-1)	acrylate	UV/VIS	Green color Very high adhesion, peelable mask Good adhesion to steel, aluminum, titanium, cobalt and nickel Removable with hot water at 80 °C	Peel after hot water soak (2-3 minutes @ minimum 150°F/65°C)
Vitralit® MASK E-20102-G	8,000-15,000 (Rheometer, 25 °C, 10s^-1)	acrylate	UV VIS	Green color, shear thinning, elastic Removable with hot water at 80°C CMR-free, certified according to ISO 10993-5	Peel after hot water soak (2-3 minutes @ mininmum 176°F/80°C)