Glass Shattering Protection Films.

Spontaneous Glass Breakage (Nickel Sulphide Inclusions)

What is spontaneous Glass Breakage?

Tempered safety glass can shatter without warning. This is not common but it is essential that you protect people from the spontaneous glass breakage. The usual cause is that manufacturing impurities can expand and stress the glass. The impurity is called nickel sulfide inclusions. This is thought to be an issue for one in every hundred glass panels. We offer a special window film covering to prevent the glass from shattering and causing harm. 

Glass is a fragile material, which, if not protected correctly, can pose an extreme hazard to yourself and the people around you. The use of safety film for glass reduces the risk of injury caused by accidental damage and avoids the threat of legal action surrounding a glass-related accident.

Lustalux Ltd has over thirty years experience in providing solutions relating to accidental and spontaneous glass breakage in all parts of the United Kingdom. In the case of toughened glass, the effect of the granulation of any given pane into thousands of tiny pieces can be extremely harmful to anyone in close proximity at the time of the incident.

Spontaneous Glass Breakage Due To Nickel Sulphide Inclusions.

Imagine the alarm and consternation caused when toughened or heat soaked glass breaks for no apparent reason. Believe it or not this type of occurrence is quite common and can cause major disruption, not to mention injury in some cases. This type of dramatic event is usually caused by a phenomena known as Nickel Sulphide Inclusions. Impurities within the glass react to changing weather or temperature conditions resulting in sudden fracture and consequent granulation of the glass often falling onto unsuspecting pedestrians below.

Help is at hand however from Lustalux with our range of fully tested Safety Window Films and Edge Retention Systems*. Whether it be overhead, vertical glazing or glass spandrel panels we can render your glass safe in the event of spontaneous breakage. Using the highest grade of safety films from world renowned manufacturers such as 3M, Solar Gard and Llumar we can provide total piece of mind wherever there is glass present.

*An edge retention system is basically the means of attaching the applied safety film and in turn a glazed panel to the window frame. This can be achieved with the application of a fillet of high-grade structural silicone or with the installation of an aluminium angle beading which can be powder coated to match the frame colour.

A recent installation of Glass Containment Film at Derby University.

How We Helped Manchester Crown Court .

Manchester’s Crown Court building received the Lustalux treatment to help avoid a potentially serious problem with their glass atrium. The atrium features reinforced glazing, however even toughened glass can present huge potential problems.

The presence of slight impurities during manufacture can result in the glass being susceptible to a condition called nickel sulphide inclusion which can result in spontaneous shattering. The effects of such a breakage could be potentially disastrous, with the very real risk of serious injury to anyone walking below or standing nearby. Thankfully Lustalux was able to provide the perfect solution.

Having beaten off competition from several other tenders bids we set to work applying a clear 200-micron film to the glass, followed by a secure powder-coated aluminium attachment system to securely join the glass with the atrium frame. Should the glass ever spontaneously shatter it will be held together, along with the frame, as one unit, thus presenting zero threat to pedestrians.

Andy MacDonald, our installation Director for this project alongside our experienced installation team, is particularly proud of how Lustalux approached the client’s requirements. “Obviously, for health and safety reasons, the work couldn’t be carried out during working hours so the project was limited to weekend only when the courts were not in use. Despite this restriction, we were able to complete the job on time and with minimal disruption to the building”

Andy Continued- “The installation itself was a logistical triumph: co-coordinating access teams, applying the film, installing the aluminium profile, and all at height and over the course of several visits. We are delighted with the result and how we achieved it”

Part of the Manchester Crown Court Atrium – 200 Micron Clear Safety Film with powder coated aluminium edge retention bars.

Safety & Security Film Technical Information :

Glass protection film is ideal for:

  • Public transport
  • Police stations
  • Education establishments
  • Banks and courts
  • Offices

And is suitable for use on:

  • Structural glazing
  • Glass partitions
  • Interior and exterior glass
  • Overhead glazing

For more information on how window safety film can secure your business and property, get in touch – we offer free, no obligation quotes.

Whatever your glass safety interest, get in touch using our contact form or call us on  01772 726622  for a quick and effective response.

want to solve your window film issues?

Our supporting specialities.

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professional window
film installation.

Window film is a thin laminate film that can be installed to the interior or exterior of glass in both commercial and residential buildings. The process of window film installation involves the use of a self-adhesive polyester film which is applied to the glass acting as a sunscreen, blocking harmful IR and UVB rays and regulating the levels of heat and light passing through it.


Window film can also be a cost effective retrofit solution for windows that need to be upgraded to meet today’s building codes and energy standards.

Available in a wide range of colours from clear to dark, reflective or non-reflective the film can also feature bespoke design elements such as your logos and company information.

Window film not only looks impressive, it can also offer you improved security and privacy. And with so many benefits on offer, it’s clear to see why window film installation is gaining in popularity

If you would like information on our window film installation service, get in touch now.

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window film.

With many commercial enterprises looking to reduce carbon emissions, being put under pressure to save money, and provide safe environments for workers, commercial window film is an ideal solution.

Our range of extra strong safety films can help to mitigate some of the effects of bomb blasts or industrial explosions.


From a security point of view, privacy window film can also help to discourage break ins.

In terms of safety and comfort, window film can reduce heat gain by as much as 80% cutting your air conditioning running time and associated costs and UV radiation is cut by 99%.

At Lustalux we have extensive experience in window film installation throughout the UK and across a number of sectors including: education, construction, care homes, sports and leisure and facilities management, so whatever your needs are, we can help.

Visit our case studies for more information.

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window film.

The application of residential window film in your home will offer you protection from harmful UV rays helping to protect your skin and eyes from sun damage. It will also reduce the fading of your interior furnishings, carpets, artwork and other valuable belongings.


Privacy window film will provide additional privacy and security keeping your valuables out of sight and deterring burglars.

Available in a wide range of shades, window film will enhance the design of your home and help to improve your kerb appeal.

Take a look at our gallery and see for yourself.

why choose lustalux to install your window film.

Lustalux has been supplying and installing window film across the UK for over 30 years. During that time we have completed work for a large number of commercial and residential customers.

Our mission is to provide outstanding products and unsurpassed services that together deliver premium value to our customers.

Which is why we use the highest quality materials backed by strong warranties and after-sales service.

Do you have any questions on window film? We have a team of experts on hand to answer any of your questions and we also provide an online quotation service.

other products and services you may
be interested in.

Solar Control Window Film 2

UV Filtering Window Film

Ultra violet protection & Fade Reduction Films.
Solar Control Window Film 2

Privacy Window Film

One way vision or 24 Hour Privacy

Solar Control Window Film 2

Security & Safety Window Films

Conforming with building regulations

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design, production
& installation.

At Lustalux we like to oversee every aspect of your project, so we provide a full-service in-house experience: from design to production to installation. To ensure top quality across all areas.

learn more.

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architectural film.

We can transform tired and outdated surfaces, both interior and exterior, with a choice of literally hundreds of architectural wrapping films. These advanced materials can replicate a myriad of finishes that are hardly discernible from the real thing. A host of surfaces can be uplifted and transformed at a fraction of the cost of replacement.

learn more.

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We offer an extensive range of unique, made to measure signs for virtually any type of requirement. We will provide the means to brand and portray your business in the best light possible with a vast range of signage and branding solutions, making you stand out from the crowd.

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