We can offer 2 Euromask® Solutions

Free Sampling: Grooves - Anodizing . Masking in industrial surface treatments

Methods and characteristics of masking systems for grooves

The main masking methods for grooves (channels, slots, seats) involve the use of masking cords and tubes, selected based on groove width, depth, and profile.
These industrial masking products must ensure high-temperature resistance, chemical inertness, controlled elasticity, and stable adhesion to reduce the risk of infiltration during treatment cycles and handling.
Equally important are reusability, dimensional accuracy (to maintain the groove section), and ease of application and removal, to optimize production cycles and ensure repeatability in large series.

In order to proceed, you may request:
Free Technical Support
Free Sampling

he most suitable solution for your needs may depend on several factors: processing method, volumes, etc...

We can offer 4 Different solutions

Star-shape section stabilized silicone tube for masking
EZT - Hollow star-shape tube 315 °C.
Flexible Silicone foam cord for masking
ASC - Round section Silicone cord 315 °C.
Square full section stabilized Silicone foam cord for masking
QSC - Square section cord 315 °C
Round section stabilized silicone tube for masking
EST - Rounded section tube 315 °C.

Further Information

The groove masking is a critical phase in industrial surface treatment processes such as industrial painting, cataphoresis, anodizing, galvanizing, and sandblasting. Inadequate protection can cause fillings or buildups inside the groove, compromising functionality, sliding, and fittings, as well as increasing the risk of rework.
The use of masking cords and tubes allows for targeted protection of the internal areas and maintains consistent functional dimensions, improving the final quality and reducing scrap, especially when the groove is a critical location for seals, tabs, or mating components.
In anodizing, the main industrial masking methods include the use of masking plugs, protective caps, tapes and adhesive films, and adhesive dots, depending on the type of anodizing and the areas to be excluded from the treatment.
Silicone, rubber, or anodizing-compatible plugs are widely used to close through holes and blind holes, preventing oxidation/anodizing inside functional seats.
Protective caps and tubes provide external protection for pins, ends, threads, and cylindrical surfaces, keeping mating or electrical contact areas intact where required.
Anodizing tapes are used to define flat areas, edges, complex profiles, or surfaces that should not receive the anodic layer (or that require a controlled thickness).
Anodizing is an electrochemical surface treatment (typically on aluminum) that requires precise control of areas not to be anodized to ensure functionality, assembly, and aesthetic requirements.
During the process, masking for anodizing is essential to protect functional surfaces, threads, holes, sealing seats, contact surfaces, and mating areas, limiting dimensional variations and preventing defects in critical zones.
Masking products for anodizing must provide stable performance during pretreatment, immersion in baths, rinsing, and sealing; chemical resistance is essential to prevent degradation, swelling, detachment, or infiltration.
High liquid penetration resistance is also required to keep masked areas protected during immersion and handling.
Conformability and elasticity of the materials facilitate application and removal on threads, edges, and variable geometries, reducing operational time and improving process repeatability.
Another key requirement is clean removal without residues, to prevent contamination, staining, or defects after treatment; when allowed by the process, the reusability of plugs and caps helps optimize costs.
An efficient masking solution is crucial for the reliability and final quality of the surface treatment.
Industrial masking makes it possible to protect threads, holes, functional surfaces, and mating areas.
Masking products for surface treatments include masking plugs, protective caps, adhesive dots, technical adhesive tapes, and masking tubing.
These devices must ensure high resistance to high temperatures.
Dimensional stability is essential during curing and drying cycles.
High chemical resistance to surface pre-treatments, such as degreasing and pickling, is also required.
The elasticity of the materials allows perfect adhesion even on complex geometries.
A key requirement is residue-free removal, in order to preserve the quality of the treatment.
The reusability of masking systems contributes to optimizing production costs.
Industrial surface treatments are essential processes for improving the protection, functionality, and durability of metal components.
Among the main surface treatment processes are powder coating, liquid coating, galvanizing, anodizing, cathodic electrodeposition (e-coating), sandblasting, and flame treatment.
These treatments provide corrosion resistance, electrical insulation, or surface conductivity, depending on the application.
During each industrial treatment, it is essential to define the areas that must not be treated.
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