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Guide To Plugs & Stoppers

Welcome to the latest instalment in our Vital Guides series, offering expert advice and guidance around some of our most popular and complex ranges. We hope that this guide gives you the confidence to measure, find and install your very own plug/stopper solution to meet your needs.

Plugs, Bungs or Stoppers as they are known, are one of the largest selections that we offer, with over 25 different styles suited towards many consumer and professional uses.

OverviewRibbed plug inside a hole, for masking

  1. When to use Plugs & Stoppers
  2. Why use them
  3. How to measure
  4. What's available

When to use Plugs

To finish or blank off a hole

As one of their most common uses, plugs can be great for finishing or blanking off an unnecessary hole, providing a neat option for preventing ingress and  access. Many of the styles offered within our range are geared towards these uses, especially ‘blanking’ style plugs which are designed specifically for such installations.

To protect a thread or internal area

As well as their finishing uses, each of these plugs can be used to protect an internal area of a hole. Internal holes are often protected during the manufacturing or production processes to prevent damage to threads, or to prevent the ingress of hazardous materials or substances.

For masking uses during coating or painting

Another extremely common use for our plugs, especially the ‘rubber’ type, is for high temperature masking uses (during the powder coating or painting processes) to offer internal protection for threaded holes, bore holes etc. Some of the 'Rubber Plugs' offered are manufactured from 'Silicone' which offers temperature resistance of up to 315 degrees Celsius, hence their popularity for such uses.

To seal off an area

Being a particularly frequent use of rubber type plugs, is their use to provide an air tight seal. An air tight seal is often a requirement when dealing with applications that are in contact with liquids or gases, with EPDM being the perfect match for these uses thanks to excellent resistance against weathering, oils, acids and chemicals.

Why use Plugs?

There are many reasons why you may choose to use Plugs, Bungs Or Stoppers over some of the other solutions that we offer, from the variety of sizes available to the type of finish or protection that is provided. But why use these over other solutions available to you?

Ease of use and installation
The majority of our plugs are relatively easy to install, requiring just a push for fitting into your required hole. Most of the solutions offered can be fitted without the need for fasteners or fixings, holding themselves in position thanks to the nature of materials, or alternatively with in-built fixing clips.

Versatile selection
As one of the largest selections that we offer through our website, there is a truly huge number of styles and sizes available. Each one having its own recommended uses and installations, leaving you with many different options to choose from depending on your specific needs.

Free sampling across the range
Free sampling is important for products such as these, where trial and error can be used to find the perfect solution for the job at hand. Almost all of our Plugs & Stoppers can be requested for free sampling, which can be requested in under a minute, by clicking on the free sample button on a relevant product page. 

How to measure Plugs?

Measuring your hole for a proper fitting is essential to provide a hassle free experience, however it is important to note that the ways of measuring differ depending on the application you’re installing them onto. For example when fitting into a panel you must take panel thickness into consideration, where-as with standard holes thickness isn’t really an issue.

For Panels

When measuring a plug for installation into a panel, it is important to note both the diameter required as well as the thickness of the panel that you’re putting them into. As detailed in the diagram below, this is a fairly simple process that requires using the measurements found to match up with solutions available on our site.

                Step 1 - Find Thickness of your panel                               Step 2 - Measure diameter of hole required

For Standard Holes

Measuring up for standard holes is a quick and easy process in comparison to panel holes as the only consideration is the diameter and length required to fill your hole. diameter is measured in the same way as pictured, making a note of your ideal length to match up with solutions available within our ranges.
                 Step 1 - Find Thickness of your hole                                       Step 2 - Install plug of your choice 

What’s available for Plugs, Bungs & Stoppers?

Our selection of Plugs, Bungs & Stoppers covers a truly vast number of basic to specialist uses, both within industry and households. Split into two main types based on their material properties (Plastic & Rubber), it is important to have a good understanding of your needs and requirements before making a choice between them.

As a general rule, plastic is used to provide a clean or long term finish where-as rubber is often used to seal off, or prevent access to a particular area. Each solution can be used with a combination of panel holes, threaded holes and standard holes, where seen to meet the requirements of a project.

Below we have split our selection of plugs into their plastic and rubber categories, hopefully this gives a better understanding of what we have on offer, as well as the uses available to you as a customer.

Plastic Plugs can be used to blank off, seal, protect and finish off an application, with a massively versatile selection of sizes and colours available for most involved uses.

Rubber Plugs are often used to seal, protect and mask off area’s during painting or powder coating processes. In most cases offering high temperature resistance and an easy push fitting, along with excellent shock absorption properties.


For our full variety of Plugs, Bungs & Stoppers please see the range here.

For any custom enquiries, problems or questions related to these type of feet then please feel free to contact us or give us a call on 01233 713581.