GWP Group

Foam Converters

Source cost effective, high performance foam products from the UK’s leading independent foam converters

Regardless of the industry you operate in or the products you need to protect, as experienced foam converters, GWP Protective can help.


Please select from the categories below to see all specific options available from GWP Protective, or if you cannot see exactly what you require please contact a member of our team who will be happy to help.

foam case inserts

Foam inserts that offer highest levels of product protection

tool control foam

Never lose tools, equipment or high value items again

Foam dividers and dunnage

Ideal handling solution for items with delicate surfaces

Presentation Foam

Applications for retail display, packaging & sales presentations

Free Guide: 15 crucial considerations for protection
Foam End Caps

Cost effective solution for high volume shipping

Ethafoam Packaging

Protective foam suitable for varying applications

Stratocell packaging

Low density foam allowing unique, engineered solutions

Anti static foams

Protect your electronics and static sensitive items

Tough protective cases

Toughest moulded cases available, including Peli & SKB

Aluminium cases

Lightweight cases for air freight & easy handling

Custom built cases

Cases tailored to exact sizes or applications

Presentation and sample cases

Wow potential clients in your next sales meeting

Corrugated boxes

The perfect outer for low density foams / high volumes

Correx Packaging

Ideal for inplant handling and foam dividers

Anti static packaging

Protect from electro static discharge (ESD) in storage / transit

Foam converters you can trust

With over 25 years’ experience in foam conversion, your company can see tangible benefits from working alongside GWP Protective.


This is true whether you have an existing foam supplier, or are starting a completely new project. Whether you are looking for high volumes or a one off design. If you are looking for a precisely engineered level of cushioning protection for high value item, or need to ship large numbers of consumer goods.


If you are looking for successful, experienced foam converters, GWP Protective can help.

How your business can benefit:

  • Cost effective options for high and low volumes
  • Precisely calculated levels of cushioning protection
  • Designed to integrate seamlessly with the outer case / packaging
  • Source your exterior packaging and foam from a single supplier to minimise costs / admin
  • High quality finishes for retail and consumer applications
  • Free quotes and impartial advice on the best solution for your specific requirements

Choosing a foam converter

There are many companies offering foam fabrication and conversion services. For many, this is simply a way to sell more exterior cases or boxes, with little thought as to how the foam insert can impact the longevity and success of the packaging.


GWP Protective take a different approach to foam conversion, ensuring we make a direct, positive impact on your business.


With a depth of understanding and knowledge as polyethylene foam converters, we can offer you a wealth of experience in converting Plastazote, Stratocell and Ethafoam materials (amongst others).


A team of expert advisors will be happy to guide you through the entire foam design and manufacturing process, ensuring your foam packaging is produced to your exact requirements.


Unlike many other foam converters, this covers everything from transit protection to luxury consumer goods, and everything in between.

Case and foam design

This level of knowledge and support – your business will be allocated a dedicated advisor and designer – is enhanced further using the latest technology.


This includes state of the art of CAD design software, used by a dedicated, highly skilled foam design team.


This is also coupled with advanced foam conversion machinery,  including CNC Routing, Waterjet, die cutting and laser cutting equipment. This is located in a clean, modern production facility ideally located to serve the entire UK market.


Ultimately, GWP Protective will help you to select, source and engineer the optimum foam product for your business, regardless of your application, industry sector or budget.

Free Guide: 15 crucial considerations for protection

Methods of foam conversion

With foam conversion being the largest part of our business, GWP Protective takes pride in the precision and level of protection which our converted foam products will offer your business.


We always aim to ensure that whatever your product, tool, equipment or components, they will arrive at their destination in exactly the same condition in which you sent them.

Foam converters

Primarily utilising Plastazote (for high protection applications), Stratocell and Ethafoam (for high volume requirements) plus a range of other specialist foams, GWP fabricate foam inserts and packaging using a wide range of techniques. Many of these utilise cutting edge processes and CAD CAM technologies.


This variety of techniques employed ensures that your case inserts and / or foam packaging is tailored to your exact requirements, whilst maintaining the performance levels demanded by the your specific market, application or product.


This approach, combined with over 25 years experience, ensures that GWP Protective are trusted foam converters to a wide range of businesses, both large and small.


Please continue reading below for further information on the specific types of foam conversion GWP Protective offers.

Foam Die Cutting

In essence, Die Cutting is the process of using a tool (die) to remove or shear material from the foam we use to create our case inserts.


The process was originally used for cutting leather in the shoe industry, but its versatility now sees it being used in a wide range of industries.


It is in fact now so advanced, that it can be used to cut through single layers of material (for example where different coloured foams have been bonded together in layers), to create visually attractive results and precise finishes. This is known as “Kiss Cutting”, and is widely used by foam converters.

Foam insert manufacture

The process of foam conversion can be carried out either on a flatbed or rotary press, although both of these require additional tooling for each new job. This means that it is widely used for larger runs, where the cost of this tooling is more easily absorbed.


As expert foam converters, GWP Protective use the latest Die Cutting equipment at our production facility in Salisbury. This ensures your finished die cut foam products are produced to exceptionally high standards.

CNC Routed Foam

One of the main foam conversion processes used for the creation of case inserts at GWP Protective (and indeed many other foam converters) is CNC routing.


This is a computer controlled piece of equipment that is linked directly to our designers’ CAD software.


By uploading the 3 dimensional profiles to the machine, the router head is then able to systematically cut away foam material to create exceptionally intricate shapes within our fabricated foam products, to exacting tolerances.


By first digitising the product to be placed within the routed foam insert, this also ensures that the match between the item and the case insert is as close as possible.

Foam conversion

CNC routing produces consistent, high quality engineered foam products. Also, due to the elimination of tooling costs (as with Die-Cutting), the process can create one-off routed foam inserts as effectively and cost efficiently as repeated identical output.


GWP Protective constantly invest in the latest technology, and this is the case with the CNC Routers in use at our Wiltshire based production facility. This includes a dual head model, allowing for increased productivity and output, whilst maintaining the accuracy of your foam insert / packaging.

Waterjet / Laser Cut Foam

As an alternative to CNC routing and Die Cutting, GWP Protective can also offer you engineered foam items that have been created by Water Jet cutting.


This equipment effectively uses a jet of water at high velocity and pressure to remove foam material from the foam in a controlled manner.


Water Jet cutting has a number of advantages over traditional die cut foam and routed foam inserts. For example, it leaves no radius in corners, is exceptionally precise and does not cause heat build up which can affect the properties of the foam.


Besides this, it can also create narrow slots to much greater depths than other methods, and provides a very clean, smooth finish with no dust residues either. It can also boast accuracy of up to 0.005″ (0.13 mm), and repeatability of 0.001″ (0.025 mm).

Free Guide: 15 crucial considerations for protection

Besides this, fabrication of foam in this manner produces no hazardous waste, eliminates airborne dust particles and fumes, and uses very little water due to its’ “closed loop” setup.


This range of benefits ensures that if you are looking for engineered foam at the top end of the market, GWP Protective can utilise the latest Water Jet technology to ensure a foam case insert that looks and performs superbly.

Free Quote / Advice


Get a quick, free, no obligation quote or impartial advice by completing the form below.

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Expert Foam Conversion… 


Use the links below to see the engineered foam inserts, foam packaging and other protective solutions available from GWP Protective.

Benefits for your business… 


Select from the options below to see how you can reduce costs, eliminate damages and streamline your operations

Related information… 


Please use the links below for further information on foam inserts / protective cases that you may find interesting and useful

6 signs you need foam inserts
Transit cases - how to decide which is best for your business
Plastazote foam - what is it and why should you be using it

Free, no obligation advice… 


Click below to discuss your upcoming requirements, difficulties you are facing or to simply get advice from one our experts.

Would you like to see how working with experienced foam converters could aid your business?