GRP Permanent Formwork

Lightweight, strong, versatile 'Leave-in-Place' / 'Sacrificial' formwork solution for a variety of applications

For over 50 years EMJ Plastics have been the UK's leading manufacturer of GRP Permanent Bridge Deck Formwork and has worked with most major UK construction companies and engineering consultants. Easily transported, Permadec Panels have been exported throughout the globe and the company continues to expand it's export markets.

News

Global Reach 🌎 Globally Trusted

By Suman Kaur | 11th June 2025

From the UK to Sydney to CZ to Saudi Arabia, EMJ’s Permadec panels are making infrastructure smarter, faster, and safer around the world.Our panels are stackable, shippable, and ready to install, with bespoke sizing and finishing options available.📦 Compliant with international packaging standards🚢 Lightweight and container-efficient📍 Supplied to 15+ countries and countingMichael Train – UK…

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📊Technical Insight

By Suman Kaur | 4th June 2025

Our panels are designed with composite section analysis using GRP and steel to ensure structural integrity and long-term durability. With ISO9001, ISO14001 & ISO45001-certified production, you can trust EMJ panels to perform under the toughest conditions. ✅ Meets CD359 standard✅ 2.0 safety factor built-in✅ Up to 120-year design life 📧: sales@emjplastics.com☎️: 01723 512 224

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Why choose Permadec Panels?

By Suman Kaur | 28th May 2025

Our Permadec panels are lightweight, durable, and cost-effective. No need for formwork stripping or underside access. That means fewer materials, less labour, and no scaffolding. 📐 Spans up to 5.7m💪 Supports heavy concrete loads🌍 Used in 5,500+ structures worldwide 📧: sales@emjplastics.com☎️: 01723 512 224

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🚧 Precision Engineering in Action

By Suman Kaur | 22nd May 2025

At EMJ, we’re proud to see our Permadec GRP panels in use on a major UK infrastructure projects like this one – The M25 J10 on Cockcrow Overbridge. Laing O’Rourke, Expanded, Shay Murtagh Precast Ltd. and Balfour Beatty plc Designed for quick installation and minimal site disruption, our panels are helping reduce construction time while…

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HSEQ Manager Position at EMJ

By Suman Kaur | 2nd October 2024
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Materials Plus

Material Plus

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Materials Premier

Social-Values-2

Social Values

Standard

Standard

Haunched

Haunched

Cantilever

Cantilever

Complete Solution

Complete Solution

Panel advantages

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Lightweight & Very strong
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Large span capability
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Safe to handle
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Safe working platform
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Designed to suit application
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Quick manufacturing times

Cost saving advantages

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Quick laying times
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Lighter cranage
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Ease in installation
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120 years durability
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Safe site cutting
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Offsite installation

EMJ – Global suppliers of GRP permanent formwork

EMJ have provided GRP permanent formwork solutions for over 5000 bridge and civil structures worldwide. For infrastructure projects we are the preferred option for leading engineering and contracting groups.

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Designed and produced in great britain

Our Permadec range of products are designed and manufactured in house by highly skilled craftsman.

EMJ provide a working template to size our formwork but ultimately all of our panels are made to order. This gives our clients the peace of mind to know that we have specified the right type of panel for the job in hand. – Panels can be supplied with a variety of permanent fi nishes to the soffi t and standard units are coloured grey to British Standard 4800 10--A-03.

Panels are manufactured to suit standard, skewed or tapered decks - minimising cutting, reducing site labour time. The Manufacture and curing period is relatively short - allowing extra panels to be ordered at short notice.

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Designed and produced in great britain

Our Permadec range of products are designed and manufactured in house by highly skilled craftsman.

EMJ provide a working template to size our formwork but ultimately all of our panels are made to order. This gives our clients the peace of mind to know that we have specified the right type of panel for the job in hand. – Panels can be supplied with a variety of permanent fi nishes to the soffi t and standard units are coloured grey to British Standard 4800 10--A-03.

Panels are manufactured to suit standard, skewed or tapered decks - minimising cutting, reducing site labour time. The Manufacture and curing period is relatively short - allowing extra panels to be ordered at short notice.

Handling and Lifting Frame

Prior to lifting, the contractor is advised to check the weight of a typical panel against its company policy for the maximum weight any one operative is permitted to lift. This will then indicate the number of general operatives required to lay any one panel. This is generally limited to 25kg per man lift in the UK.

Formwork is generally palletised and identified for the location on the structure where it is needed. This prevents and reduces the amount of double movement which can save valuable time on installation. – On contracts where formwork dimensions vary, please check the locality of the formwork immediately before applying sealants.

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Handling and lift frame

Prior to lifting, the contractor is advised to check the weight of a typical panel against its company policy for the maximum weight any one operative is permitted to lift. This will then indicate the number of general operatives required to lay any one panel. This is generally limited to 25kg per man lift in the UK.

Formwork is generally palletised as convenient for laying as possible. Pallets should be moved close to the laying area, this will reduce the amount of physical lifting required. On contracts where formwork dimensions vary, please check the locality of the formwork immediately before applying sealants.

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Installation

  • Suitable PPE to be warn
  • Check weight of panel prior to manual lifting
  • EMJ will palletise as convenient for laying as close to the final fixing point
  • Pallets to be moved as close to the final fixing point as possible
  • Lifting Holes can be included in vertical ribs if required
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Cutting & Sealing

  • Standard Stihl saw (or similar)
  • Respiratory Mask, Rigger Gloves
  • Minimum bearing of 30mm should be achieved
  • Easily applied
  • Prevent Grout Loss
  • Sealant test data available
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International transportation

  • Pallets are clearly marked with types and  dimensions
  • Banded and shrink wrapped
  • Can be interlocked to reduce space
  • EMJ use pallets which meet international standard for Phytosanitary Exporting Measures
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"EMJ Plastics Limited were engaged to design, manufacture and deliver permanent formwork panels (Permadec) for a new road bridge in Newhaven, East Sussex. They were superb throughout the procurement, design and manufacturing stage. The Permadec system is extremely fast and easy to install especially when using the lifting frame to load out multiple panels at a time. The system seals really well requiring no additional protection when pouring the concrete deck above, even when working over a live railway. I would happily use this system and EMJ Plastics Ltd again."

Christopher Buckle, Senior Site Agent at BAM Nuttall Ltd

We pride ourselves on producing bespoke panels to suit the clients individual requirements, whether it be size, type or any other preference.

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We pride ourselves on producing bespoke panels to suit the clients individual requirements, whether it be size, type or any other preference.