Silicone Tapered Plugs

  • STP Silicone Tapered Plugs
  • High temp silicone tapered plugs for powdercoaters, anodizers and other metal finishers masking holes as small as 1/16 inch up to 4.75 inch 
                                            in diameter.
    Silicone Masking Plugs from 1/32 inch to 5 inch
  • STP Silicone Tapered Plugs
Diagram of silicone tapered plug dimensions showing top, bottom, and length

Diagram of Dimensions for Tapered Plugs

High-Temp Masking Plugs for Powder Coating, Anodizing, Ecoating & Plating

Save time and money by masking quickly and at low-cost with silicone tapered rubber plugs in powder coating, anodizing, electroplating and ecoating processes. Ideal for blind holes, shorter thru holes and many threaded holes. Can also be used for lighter blasting needs.

Ideal for masking during powder coating and ecoating oven cycles due to 600°F / 315°C max temperature rating. Most sizes are color coded for quick identification. Made from fully cured, high temperature, flexible silicone rubber material that will not leach into plating or anodizing tanks.

How to Select the Right Masking Plug Size: Tapered Plug Sizing Charts Use that chart to select the right size plug, every time. Also use for identifying the part number of an unknown plug - just match up the top, bottom and length.

Also, learn how to find the right tapered plug for common thread sizes: Masking Plugs & Threaded Holes Chart.

Custom sizes and shapes are available with low cost tooling. Contact Us today for a quote! Stock items are subject to availability, but are usually available for shipment within 24 hours.