Tapered Silicone Plugs
For internal holes and threaded holes.
- Tapered shape for easy insertion
- Suitable for multiple hole diameters
- Good sealing contact
- Reusable depending on process
Masking Accessories
Silicone Masking Plugs & Caps
Reusable silicone masking accessories for holes, threaded holes, studs, shafts and tube ends in powder coating, painting, electroplating, anodizing and other surface-finishing processes.
Multiple SizesFull size chart available on request
ReusableDepending on process conditions
Flexible SiliconeFor insertion, sealing and removal
Custom OptionsSpecial shapes can be discussed
Four Main Types
Choose by Masking Function
Rather than listing dozens of individual sizes, the website presents four representative product families. Specific dimensions can be matched after you provide the hole, stud or tube size.
Silicone Pull Plugs
For through-holes and quick removal after finishing.
- Pull-tail design aids removal
- Suitable for repeat production cycles
- Flexible silicone construction
- Useful in coating and plating processes
Flanged Silicone Plugs
For masking holes while also covering the surrounding edge.
- Flange protects the hole perimeter
- Stable positioning during processing
- Useful for coating, plating and anodizing
- Multiple sizes available
Silicone Caps / Flat Caps
For studs, shafts, pins, bolts and tube ends.
- External masking protection
- Simple push-on cap design
- Multiple shapes and sizes
- White / black and other options subject to availability
Typical Applications
Surface Finishing & Industrial Masking
Silicone masking accessories complement the tape range and help protect holes, threads and external features during finishing processes.
Powder Coating
Protect holes, threads, studs and tube ends during powder application and curing.
Painting / Baking
Temporary masking for areas that need to remain free of coating.
Electroplating
Mask selected holes and components during plating processes.
Anodizing
Protect selected surfaces and openings during anodizing and related treatments.
How to Select
Send Us Four Basic Dimensions
You do not need to identify a model number first. Provide the relevant workpiece dimensions and process information, and we can help narrow the suitable plug or cap type.
Hole / Stud DiameterInternal diameter, external diameter or thread size.
Masking DepthHow deep the plug or cap needs to engage.
ProcessPowder coating, painting, plating, anodizing, etc.
Temperature / TimeProvide actual process conditions when temperature resistance matters.
Size information: Multiple sizes are available. A full size chart can be provided upon request. Specific temperature limits should be confirmed against the exact silicone material and process conditions before commercial supply.
Need Help Choosing a Plug or Cap?
Send the hole / stud size, masking depth, process and estimated quantity.