Custom silicone masking, engineered to your geometry, ready in weeks.
Plugs, caps, sleeves, covers, and moulded masks manufactured to your drawing or sample. Designed for powder coating, anodizing, e-coating, plating, electronics manufacturing, and precision assembly.
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When Standard Parts Are Not Enough
Standard silicone plugs and caps cover the majority of masking tasks. Non-standard bore geometries, complex multi-surface parts, and high-volume lines where manual adjustment accumulates quickly are where standard parts fall short, and where custom silicone components pay for themselves.
Custom-moulded parts are manufactured to your exact geometry from drawing, CAD files, or physical samples.
The resulting product fits without adjustment, seals without leakage, and releases cleanly after every cycle, eliminating the rework and coating defects that come from forcing a standard part into a non-standard application. -
Fast Development. Low Tooling Cost.
Component design in 48 hours. Production parts in 3 to 4 weeks.
Our development process is built for efficiency. Streamlined tooling workflows and in-house design capability mean we move from drawing to qualified part faster, at a fraction of typical tooling costs.
Tooling is a one-time investment held at no charge for the lifetime of your project. Once your mould is cut, per-piece costs are a fraction of equivalent manual masking labour per cycle.
Before committing to series tooling, qualification samples let you validate fit and process performance in your actual production environment, with no obligation to proceed.
All components are rated to 250°C / 480°F, manufactured to ±0.1 mm dimensional accuracy, and produced from chemically stable, high-purity silicone.
Custom silicone plugs, caps, and sleeves in any form factor
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Custom Silicone Plugs
Mask and seal bores, holes, ports, and internal threads. Tapered, hollow, pull, flanged with dual-purpose, and handle designs.
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Custom Silicone Caps
Protect studs, bolts, pins, protrusions, tube ends, and external threads. Washer caps, terminal caps, and vented cap designs available.
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Custom Sleeves & Covers
Protect shafts, pipes, profiles, machined faces, and extended features. Strong for protection and sealing applications in coating and PCB manufacturing.
Designed for every application
Request a Custom Silicone Component-
Surface Treatment Processes
Protect critical areas during coating, plating, anodizing, and painting processes with high-temperature silicone masking solutions designed for repeated industrial use.
Typical Applications- Powder coating
- E-coating
- Anodizing
- Plating
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Electronics Manufacturing
Precision masking solutions for electronics manufacturing and PCB processing, helping protect connectors, contact points, and critical surfaces during conformal coating applications.
Typical Applications- PCB masking
- Connector protection
- Selective coating areas
- Electronics assembly
From Drawing to Delivered: How It Works
Step 1
Application Review
We review your drawing, part sample, or specification. The review covers the feature to be masked or protected, the process type, temperature exposure, chemical environment, and the required masking zone. Based on this, we propose a component concept.
Step 2
Concept Development
Based on the application review, we define the component geometry, silicone grade, sealing approach and insertion and removal features. In doing so we consider application environment, compression behaviour, reusability, and and any special requirements such as venting, colour coding, or ergonomic handling features.
Step 3 (optional)
Qualification Parts
Prototype or qualification parts are produced for fit, handling, and process validation. This step confirms that the component performs correctly in the actual production environment before series tooling or supply is committed. Qualification parts are available within approximately 14 days from drawing approval.
Step 4
Production Supply
Following successful qualification, the component moves to repeatable series production. Documentation, part identification, and ongoing availability are managed to support production continuity. Minimum order quantities are kept low to support both pilot production and series supply. Development and production of the series tooling takes 3-4 weeks, a batch production run 2-3 days.
Engineering Criteria
Engineered around the variables that decide your process performance
High Temperature Reliability
Silicone is selected for its thermal stability and compatibility with a wide range of chemical environments.
Material grade and geometry are specified for the actual process temperature and exposure duration; from short-cycle powder coating to extended dipping or immersion processes.
Compression, Sealing & Fit
The component is designed for controlled compression, reliable insertion, and clean removal.
Sealing performance is determined by geometry, wall thickness, and material hardness, not only by dimensional fit.
Dimensional Tolerance & Critical Surfaces
Masking geometry is engineered around drawing dimensions, tolerances, and the exact boundaries of the critical surface.
The protected zone is defined before the component geometry is finalised.
Insertion, Removal & Operator Ergonomics
Handles, tethers, pull tabs, and ergonomic features can significantly reduce operator time per part.
Insertion and removal speed is considered during the design phase, especially for high-volume production.
Venting & Pressure Relief
In e-coating and other dipped or immersion processes, pressure build-up inside sealed cavities can cause plug blowout or coating defects.
Venting or pressure-relief features can be incorporated where process conditions require them.
Color Coding & Visual Identification
Optional colour coding by silicone compound or geometry differentiation helps production teams identify the correct masking component for each feature, reducing misapplication risk on high-mix or multi-variant lines.
Send us your drawing or sample
Share your drawing, part sample, or application details. We will review the geometry, process environment, and critical surfaces and come back with a recommendation, whether that is a standard part or a custom solution.
Browse our off the shelve product categories
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Silicone Caps
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