Wishing You All a Great Festive Break and a Happy New Year!

We’d like to wish you all a great festive break and a Happy New Year. Thank you to our valued customers for their business, all our partners and our staff for their hard work this year. We look forward to working with you all in 2023!

Please see details below for our Dortek office closing times over the festive break:

UK office: closed 26th December – 2nd January.
Irish office: closed 21st December – 3rd January.
US office: closed 23rd December – 2nd January.
Singapore office: closed 25th December – 2nd January.
Swedish office: closed 26th December – 1st January.

Cleanroom Windows

Specifically designed for healthcare, pharmaceutical, cleanroom and food environments, Dortek windows are double or multiple glazed with an ultra-clean flush surface. Our hygienic windows are constructed with two outer panes of 6mm thick glass which is flush fitting to both sides of the frame. Frames are constructed from powder-coated or polished stainless steel or GRP, with no fixings or screws to maximise hygiene and cleanability.

Dortek hygienic windows are fire tested to BS & EN standards for up to 120 minutes of fire resistance (GRP framed option) and 60 minutes (Stainless Steel framed option). Our windows can be offered with integral blinds, smart glass, lead lining or laser protection. This makes them ideal for use in laboratories, pharmaceutical applications, and hospitals.

Key benefits of Dortek windows:

  • Available in custom sizes
  • Sealed flush finish on both sides of the wall
  • Free from fixings or screws to maximise hygiene and cleanability
  • Available in GRP or Stainless Steel frames
  • Available with Integral blinds, smartglass and lead lining and laser protection.

Cleanroom window in a hallway. Large cleanroom window in a factory.Cleanroom window in a hospital.

Novosprint High Speed Doors for Hygienic Environments

NOVOSPRINT high-speed doors allow traffic to move rapidly and safely. The sideways opening action of the two leaves of the door halves the opening time, and in contrast to vertically opening systems the user immediately has the entire height of the passage available. This avoids the risk of a collision with the door or of it landing on people or goods.

The NOVOSPRINT high-speed door reaches an opening speed of up to 5 m/s which is ideal for fast logistic processes, forklift traffic and air locks.

The clean solution

Whether it is used in the pharmaceutical industry, food industry or healthcare sector – the range of features available means that the NOVOSPRINT is able to fulfil all specific regulations in terms of cleanliness, freedom of pores, food safety and many other hygiene requirements.

In compliance with regulations, all tangible parts are made of nonporous and corrosion-resistant material, such as stainless steel and plastics.

Due to the lateral opening of the door, the closing edge does not touch the floor. Therefore, there is no risk of dirt particles or moisture dropping onto the goods.

The contactless switch detects approach at an adjustable distance of 10 to 50 cm. This hygienic solution is the ideal alternative to manual devices.


Novosprint hygiene door illustration.



  • All major components are available in stainless steel.
  • Easy cleaning due to flat surfaces.
  • Easy disassembly of the casing makes cleaning and disinfecting easy.
  • Horizontal opening prevents dirt from being carried away from the floor by the under rubber and can fall on the products when opened.
  • The optional floor closure keeps pests away.
  • Complete opening height is immediately accessible.
  • Short opening and closing cycles (door opens twice as fast).
  • Reduced risk of collisions.
  • Minimized air exchange by reduced opening and closing periods.
  • Low operating costs due to a minimum of wearing parts.

For more information, please visit www.dortek.com

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Proud Supporters of Fire Door Safety Week 2022

Dortek are proud to support Fire Door Safety Week, which runs from 31st October – 4th November this year.

Fire door safety week is designed to raise awareness and highlight the critical role that fire doors play in commercial and public buildings. The awareness week aims to promote the critical role of fire doors, drawing attention to specific issues such as poor installation and maintenance.

Dortek are market leading manufacturers of high performance vermiculite-cored fire doors. Our doors are designed, tested and certified to meet the most stringent fire certifications. We can achieve a 5 hour fire rating and our door systems are tested to meet over 50 specifications compliant with worldwide regulations.

If you’d like more technical information about our fire doors, please contact your local office where a member of our team will be happy to assist.

Remember to follow our LinkedIn and twitter pages for further content throughout the week. For updates on the campaign and the many events scheduled throughout the week, follow Fire Door Safety Week on Twitter or search for tweets with #FireDoorSafetyWeek. To find out more about Fire Door Safety Week visit here – https://www.firedoorsafetyweek.co.uk/about/

Fire door safety week.


Butzbach Spacelite Stacking Doors

Innovative and space saving

SPACELITE stacking doors are space-saving and low wear. When the doors are opened, the individual translucent door elements line up vertically and compactly one behind the other. A wide range of equipment options make SPACELITE stacking doors a flexible industrial door that is also suitable for large-format doors.

Open shutter doors in a garage.

Due to the wall mounting without ceiling suspension, the door is suitable for almost all installation situations – in new buildings and renovations.

For conventional industrial doors of the same size (5.5 x 3.5m), the entire door area is required as additional open space in the ceiling area. With the SPACELITE stacking door, this additional free space is reduced to approx. 17.7% of the comparable area.

Butzbach Spacelite Stacking Doors.

In addition to properties such as stability, durability, thermal insulation and resilience, fiberglass also offers light transmission.

The direct drive of the Butzbach door works without wearing parts such as tension or torsion springs. Due to the door sealing and the high light transmission, heating and energy costs can be saved.

The wall mounting of the lifting gates also allows installation on the ceiling of crane runways, extraction systems, lighting, lifting platforms and other installations.

The guide rails are closed on three sides and can thus avoid crushing and injury risks. Thanks to their high corrosion resistance, the doors can also be used in environments with extreme conditions.

Spacelite door benefits:

  • low dead weight
  • heat-insulating, flexible and stable thanks to fiberglass
  • Corrosion resistant
  • High light transmission due to fiberglass door filling (up to 78%)
  • Dimensions up to 15 m wide and 24 m height possible
  • Outdoor installation possible
  • Door leaves with thermally insulated fiberglass web double panels with 40 mm installation thickness
  • Thermal insulation up to Up = 1.4 W/m²K
  • Optional panoramic door leaves made of acrylic or real glass

For more information please contact us at info@dortek.com.

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Product Showcase – Novosprint High Speed Doors

Lateral Thinking for Superior Speed and Safety

Novosprint high speed doors are ideal for all industrial, supermarket and pharmaceutical environments. With its lateral opening technology, its opening speed of up to 5 m/s and its closing speed of up to 2.5 m/s, the NOVOSPRINT door is the most reliable solution for speed and safety in the workplace.

the novosprint principle









Faster Opening

Instead of the traditional vertical opening, the Novosprint door opens horizontally for twice the speed and significantly improved safety. The two halves of the door open sideways in less than a second. This makes the entire height of the door immediately accessible and drastically cuts the risk of collisions or accidents.

Increased Safety

An opening speed of up to 5 m/s and closing speed up to 2.5 m/s enables faster and safer transport of goods. This trouble-free flow of traffic and goods avoids collisions, long interruptions and costly door repairs. The transparent vision panels at eye-level also maintain visibility between one area and the next, even when the door is closed.

More Economical

Low purchase price, low operation costs and low maintenance costs. Short opening and closing cycles reduce draught and heat exchange, thus reducing energy costs and the possibility of illness.

Better Hygiene & Contamination Control

The Novosprint principle of side opening ensures that no dirt spreads from the ground onto workers or any goods being transported. That’s because unlike vertical doors, the door does not come into contact with the floor and pick up dust or dirt which is then left to drip or fall onto passing objects below. The Novosprint hygiene door is an alternative solution which has been developed to meet the requirements of the food and pharmaceutical industries. In compliance with regulations, all tangible parts of the door are made of non porous and corrosion resistant material, such as Stainless Steel and plastics.

Have a look at our industrial doors page or contact us for more information.

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Novosprint high speed doors Dortek

Dortek Project Showcase: USA

Did you know Dortek has 5 offices and 15 partners located worldwide and has supplied our doors to over 80 nations? Our US office has continuously grown and we’re proud to have worked on countless projects with some of the world’s biggest companies. Below are just a couple.

Pfizer, Sanford – Biopharmaceutical Company

Doors installed – 54 +

Dortek supplied 55 frp doors across the laboratory areas, testing rooms, corridors and exit escapes of Pfizer’s Sanford site as part of an expansion. Dortek’s products were chosen for their longevity and ultra-clean, non-porous finish. Our team offered full support to Pfizer at every stage of the process, from site surveys to installation and servicing.

Pfizer, Sanford.

Dana Farber, Boston – Cancer Institute

Doors installed: 4+

Dortek installed 4 hermetically sealing sliding doors to the facility’s Bio Decontamination area. These doors are ideal for areas that are using vaporised cleaning agents as part of their protocol. Stakeholders were able to work together in order to meet the deadline of the project, which had a short schedule. No matter the size of the project, that being installation of 4 doors or 100 we will always approach each project with a certain level of professionalism and attention to detail.

Dana Farber Cancer Institute.

Genzyme, Massachusetts – World-Leading Biotech Company

Dortek has a long history of providing door solutions to Sanofi facilities around the world and was trusted to provide hygienic door solutions for their new facility in Framingham. Dortek manufactures a range of high-performance FRP doors and panels for use in cleanroom environments. The firm worked with project architects to develop the specification for a biotech cleanroom facility, which uses Dortek’s seamless, void-free products.

Genzyme, Massachusetts.

If you’d like more information on our previously completed projects or advice on an upcoming project, please contact our US team on +1 267 788 9365 or email us at us-sales@dortek.com


Molded FRP Doors for Hygienic Environments

What are Dortek molded FRP doors? 

Dortek molded FRP doors are manufactured from high technology engineering composites using a unique closed mould process. This creates a strong, uniform product with no seams or joins on the door surface and no voids, holes or crevices within for bacteria to harbour.

Ultra Hygienic Design

With a smooth and seamless construction, Dortek molded FRP doors have no ledges, recesses or right angles where dust or bacteria can be trapped and grow. Our FRP doors are free of timber and other organic materials that promote bacterial growth. This makes them ideally suited to areas requiring maximum hygiene and cleanability.

Fire & Heat Resistant

Dortek FRP fire doors meet over 50 independent tested specifications compliant with worldwide regulations. Our fire rated FRP doors are completely heat resistant and designed to withstand areas with high humidity and extreme temperatures.


The in-organic, closed cell core of Dortek molded FRP doors means they do not absorb moisture. They remain unaffected from exposure to chlorinated water, steam and cleaning chemicals. Dortek doors will not swell, rot, rust or warp even after years of usage.

Chemical Resistant

The non-porous smooth hygienic surfaces of Dortek FRP doors make them extremely easy to clean. Dortek molded FRP doors have excellent resistance to most disinfectants, solvents and other strong chemicals including H2O2. Have a look at our chemical resistance Have a look at our chemical resistance test for more details.

Extreme Strength & Durability

Dortek molded FRP doors are built to last, even in the harshest of environments; our doors will not dent, warp, swell, rot or rust. Dortek FRP doors are proven to outperform steel and wood alternatives, bringing you a lifetime of durability and the ultimate cost effective solution. Have a look at our strength test for more information.

Blue molded FRP doors.


42% lighter than wood and steel doors, Dortek FRP doors are much safer and easier to operate. Heavier doors often require expensive maintenance work or replacement due to excessive wear on hinges and closers.


Dortek fiberglass doors are available in a wide range of  colors. Unlike alternatives, color is built into a Dortek door during the manufacturing process. The outer skin of the door has a gel coat finish which is chemically bonded to the glass fiber. This ensures that the door will never require repainting or refinishing. View Dorteks colour chart here. 

Custom Made

We understand that not all projects are the same. All of our molded FRP doors are custom made to meet your needs exactly. We can produce hygienic doors which are capable of resisting fire, water, laser, x-ray or a combination of requirements.

Maintenance Free 

Dortek doors are exceptionally lightweight, impact resistant with long lasting built in color. This gives them low life cycle costs and means they are often proven to outlive their usage.

Uncompromising Quality

Were so confident about the quality of our Doors that we can offer a guarantee for up to 25 years on our door blades. This is against failure due to corrosion, swelling, rot, warp, separation, delamination or expansion. *subject to our terms and conditions.

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Hygienic FRP Doors for Infant Formula Facilities

Infant Formula

Baby formula or infant formula is primarily used as a substitute for human milk. Other uses include ‘follow up’ products as a dietary supplement for older infants, and special formulations for specific nutritional needs or to overcome allergies e.g. Soya based milks for lactose intolerant infants.

The Process

The milk powder process involves the gentle removal of water at the lowest possible cost under stringent hygiene conditions while retaining all the desirable natural properties of the milk – colour, flavour, solubility, nutritional value. Whole (full cream) milk contains, typically, about 87% water and skim milk contains about 91% water. During milk powder manufacture, this water is removed by boiling the milk under reduced pressure at low temperature in a process known as evaporation. The resulting concentrated milk is then sprayed in a fine mist into hot air to remove further moisture and so give a powder.

Hygienic Considerations

To fulfil today’s increasing demand for baby formula to meet physical, chemical and bacteriological requirements, there is an increasing focus on the design of manufacturing facilities to meet the strictest hygiene standards.

Codex, which is jointly run by the UN Food and Agriculture Organisation (FAO) and the World Health Organisation (WHO), sets international food safety and quality standards. In their code of hygienic practice for milk products they state that production facilities should be designed and constructed to ensure minimum contamination and to allow easy cleaning, maintenance and disinfection.

Every component of a Dortek door has been designed to meet the strict focus on hygiene in infant formula facilities. We are the trusted hygienic door for the top 5 infant formula companies worldwide with a client list which includes Abbott Nutrition, Mead Johnson, Fonterra, Glanbia, Kerry, Danone, Nestle and Wyeth.

Here are the reasons why Dortek FRP doors are the ultimate hygienic solution for infant formula facilities;

  • Maximum Hygiene  Smooth and seamless finish which is easy to clean with no ledges or voids to harbour bacteria.
  • Moulded-In Gel Coat – Every Dortek door has a corrosion resistant finish called a gel coat which is moulded in at the initial step of fabrication.  This leaves it completely sealed and protected.
  • Fiber Reinforced Polyester Composite – Our doors will not rust or corrode unlike steel alternatives.
  • Extreme Strength & Durability – Will not dent, warp, swell, rot or rust. FRP is commonly used in high performance aircraft and boats.
  • Lightweight – 40% lighter than steel doors which require replacement or repairs due to wear on hinges and closers.
  • Maintenance Free – Permanent built in colour which will never require repainting.
  • Heat Resistant – Ability to withstand areas with high humidity or extreme temperatures.
  • Chemical & Water Resistant – Ideally suited to highly corrosive environments including frequent exposure to water and cleaning agents.
  • Fire Resistant – Our hygienic fire rated doors meet over 50 independent tested specifications compliant with worldwide regulations.

Red FRP Doors in an Infant formula facility. White FRP Doors in an Infant formula facility.

Choosing the Right Doors for Food Processing Facilities

Blue food doors.

Today’s hygiene regulations require buildings used for food and beverage manufacture to meet specific standards in their layout, design and construction. In particular, they should permit good hygiene practices, be easy to clean and disinfect and should protect food against external sources of contamination, such as pests and bacteria.

Choosing a door that’s fit for purpose is an important part of achieving these standards. Door systems play an essential role in preventing cross contamination as well as maintaining correct room temperatures and ensuring optimum operating efficiency. Here we look at some of the key considerations in more detail.

Protection against pests and contaminants

Minimising any potential for contamination is one of the highest priorities in food processing facilities. To minimise bacteria, it is essential that doors are completely seamless and impervious in order to prevent germs building up in any hard to clean gaps or cracks in the doors surface.

Surfaces in food facilities must be cleaned thoroughly and regularly. Doors must have smooth, waterproof surfaces which are easy to clean and disinfect. They also need to be durable enough to withstand impact from traffic and vigorous cleaning procedures, which typically include very hot water, steam and aggressive cleaning chemicals. If doors start to crack, rot or peel this can reveal areas for bacteria to reproduce which will compromise hygiene.

Reducing energy costs

Door selection is also an important factor in keeping the temperature levels balanced in food facilities. Door should enable easy access for goods and people whilst also minimising air exchange. This not only improves the efficiencies of the building itself by lowering refrigeration costs and condensation, but it also improves the quality of the products.

Automated doors can be used in conjunction with air tight doors at the appropriate locations to offer a higher degree of air management control. Sealing and/or automatic doors can prevent air from travelling to areas where it’s not supposed to, improving temperature control and cross contamination.

Increasing safety and productivity

Doors need to be wide enough to allow the easy movement of staff, equipment and vehicles, but also correctly installed so that there are no gaps around the doors or frame. When doors are in frequent use (for example in loading bays) additional measures like automations and self-closing mechanisms may be necessary to increase opening speeds and help minimise pests.

Automatic or fast acting doors can be beneficial for high traffic areas in particular or where open food products are being transferred. Shorter opening times can minimise draughts, dust and contamination whilst also increasing production efficiency and saving energy costs. Furthermore, automated doors help improve staff safety and prevent damage to the door by reducing collisions.

Doors in high traffic areas and those which are likely to have equipment and forklifts passing though should be strong and able to withstand heavy impacts. Preventative maintenance should also be considered for all doors to keep them in peak operating condition and to help prevent costly downtime throughout the facility.

Fire protection and safely segregating spaces

Fire doors are one of the most critical elements of fire protection. They are an important part of compartmentation which helps to slow down the spread of fire and smoke and allow occupants to either escape the building by keeping escape routes clear of smoke and fire, or wait for rescue.

The selection and installation of fire doors which are fire tested and proven compliant by a third party approved organisation is essential. A fire door is much more than just a door leaf. The door leaf, the frame, the hinges, the fittings, the hardware, the glass in the vision panels and the seals are all dependent upon each other, to ensure the effectiveness of the door in a fire. The full door assembly must be fire tested as a combination of all elements together, rather than each component individually.

Fire doors are carefully engineered fire safety devices which should be fitted correctly by experienced installers from a reputable company. A certified fire doorset which is incorrectly installed may provide very little, if any, fire resistance at all. For this reason, specifiers should always use professional installers who are fully trained.

Security and Accessibility 

Along with equipment in the facility, doors are a critical component for Food security, especially in food auditing inspection processes which are typically conducting annually by authorised accredited inspection agents.

Innovative Hygienic Door Solutions

Long-term durability and high performance are achieved by specifying the most suitable door materials. Doors in food facilities will be one of the most frequently used and touched components so longevity, cleanability and durability are crucial factors. When selecting doors, food facilities commonly have four materials to choose from—steel, timber, laminate or hygienic GRP. However, in areas where hygiene is important, there is really no comparison between them. In every aspect, hygienic GRP doors perform much better than their steel or timber counterparts. The construction of steel and timber doors leaves seams and crevices, particularly around vision panels and the top and edges of doors. These harbour bacteria and are difficult to clean, creating contamination risks. Steel doors also oxidise when exposed to regular cleaning regimes, whereas timber/laminate doors warp, rot and decay when exposed to moisture.

Hygienic doors are also better value than its competitors, when lifecycle costs are factored in. Depending on the type of structure, steel doors will often require additional heavy steelwork to reinforce the door opening before installation. In high usage areas, doors are subject to a lot of wear and tear. The surfaces of steel, timber and laminate doors mark very easily and require regular maintenance to ensure hygienic performance is not compromised. Also, should they suffer impact damage, can easily dent, and cannot be repaired in situ.

Hygienic access solutions such as Dortek’s have become the leading solution for food facilities to overcome the limitations of other doors. Hygienic doors comply with all the latest good manufacturing practice (GMP) requirements in the food sector. They have a smooth, seamless construction which is easy to clean and does not harbour bacteria. The inorganic GRP door surface and core is also completely water resistant and does not warp, rust or rot when exposed to disinfectants. Doors can also be supplied and installed with numerous choices of automations, access control and air tight sealing choices to suit each opening. In addition, a huge range of colours are available for both door and frame, ensuring colour matching throughout the facility.

Hygienic Door Benefits

  • Corrosion resistant – hygienic doors like Dortek’s do not rust, corrode or fail in corrosive environments or locations that require frequent wash downs.
  • Completely flush construction – which is sealed on all sides, no seams, gaps or cavities for bacteria or dirt to gather.
  • Custom fabrication – doors can be manufactured to virtually any standard or custom size.
  • Fire ratings – hygienic doors such as Dortek’s can be manufactured with certified fire ratings up to 5 hours (using a patented hygienic concealed intumescent strip).
  • Automations and activation devices – a wide range of automatic systems can be added for safe, fast and easy access.
  • Insulation and airtight sealing – doors can be supplied with a range of insulation options or seals to prevent air leakage and maintain temperature control.
  • Hardware options – hinges, locks and closers can fit virtually any hygienic GRP door panel.
  • Solid core construction – adds strength and the ability to perform in high usage areas.
  • Low maintenance and long lasting – designed to withstand heavy impacts and manufactured with a permanent gelcoat finish.
  • 20+ colours options – for doors and frames, plus options for any standard RAL or BS colour to maximise aesthetics.
  • Regulatory approvals – Dortek hygienic doors are approved for use in regulated facilities under the food and drug administration (FDA) including specific programs such as current good manufacturing practices (cGMP).

The edges of two doors.

Dortek is a leading global supplier for the supply, manufacture and installation of access solutions, including hygienic doors for the food, pharmaceutical, bioscience, healthcare and industrial sectors.  With over 50 years’ experience in designing and supplying access solutions, our dedicated in-house project management team deliver complex, bespoke door packages from initial design to final commissioning. Dortek doors are specified extensively by leading food organisations around the world. We have completed projects throughout the UK, Ireland, Europe, US, Africa, Singapore, Malaysia, New Zealand and Australia. Visit our website or contact us for further details.


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