Bomb Blast Window Film from Sureguard Window Films

Government advice strongly recommends the use of anti-fragmentation window film to reduce the severity and spread of glass related injury to personnel.

Bomb Blast mitigation Window Film provides a highly effective measure in the reduction of injuries to personnel and damage to property caused by explosive forces.

Sometimes referred to as Anti-Shatter Film, Anti-Fragmentation Film or ASF, Bomb Blast Window Film can dramatically limit serious injury caused by flying glass fragments.

The risk of terrorist attack, as experienced during the IRA campaign of the 1970's and 80's may have receded but the use of Bomb Blast Window Film from Sureguard Window Films is as relevant today as it was then.

Sureguard Window Films have vast experience and expertise in the specification, installation and application of Bomb Blast mitigation Film with clients throughout the UK and beyond.

Our network of service centres throughout the country ensure that we are able to offer truly national coverage for companies and organisations with one or multiple sites.

Our project management experience guarantees the highest levels of quality assurance are maintained throughout.

If you already have Bomb Blast Window Film applied to your windows you may be unsure of it's effectiveness.

Bomb Blast Film fitted more than 10 years ago is highly likely to have exceeded it's warranty period and therefore cannot be certain of providing the levels of protection originally required.

Sureguard Window Films provide a full testing and consultation service aimed at confirming the effectiveness of existing Bomb Blast Mitigation Window Film .

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Established in 1983 and now one of the longest established companies within our sector Sureguard Window Films continue to be at the leading edge of applied window film technology. We provide long term solutions to your glazing problems. We are totally committed to "CARING FOR PEOPLE AND PROPERTY".

Our dedication to quality has always been paramount and we are justly proud to have been one of the first Window Film companies to attain BS5750 (now ISO9000). This quality control system and membership of the GGF ensures that we continually assess and maintain a quality of product and installation which is second to none.

Why not take a look at www.shop4windowfilms.co.uk, www.shop4windowfilm.com, www.solar-films.co.uk exciting new developments in the window film and window films home improvement sector. A site devoted to supply window film ranging from solar films, safety films, security window film, privacy window film, UV window film and other decorative and etched window film products for in and around the home. This moving with the times approach further enhances our reputation with customers and peers alike as being one of the most respected companies in our industry.

We hope that in the future you will benefit from our services and that we can welcome you as our next satisfied customer.

ROB HANNON
Managing Director

www.sureguard.co.uk

The vulnerability of the UK mainland and other major cities throughout the world to terrorist attack could not have been more strongly emphasised than in the attacks on London's Transport system on Thursday 7th July 2005.

Explosive Forces.

There are many different kinds of incendiary devices of varying explosive force. However the principles of all bombs are based around the quick, successive movement of air in cycles of positive and negative pressure waves...READ

These waves create rapid changes in the pressures exerted on the fabric of a building, causing opposing forces on either side of the materials.

The leading phase of an explosion is of negative pressure, sucking all the air towards the explosion source.

The air pressure within the building is also pulled towards the oncoming wave, exerting force on the external structure causing outward bowing into the negative cycle, in turn weakening the structure.

Within milliseconds the positive phase strikes the building. The negative phase will now have entered the structure and the force will push the building material inwards.

This action will continue through the overall cyclic duration of the blast and will have differing effects on the building materials used to construct the building.

Unlike many building materials glass is not very flexible and once its stress points are exceeded it will break. The nature of the breakage will depend on the glass type, its size and to some extent the framing material.

The first, negative phase of an explosion will apply forces to the glass that will make the glass bow into the oncoming force.

Depending on the pressure of the leading edge, this bowing could be sufficient to break the glass.

The positive phase, immediately following, would push the broken pane of glass into the building.

The following Flash example shows how explosive forces work on glass. (Click here to see the example)
Bomb Blast Window Film.
"Modern buildings make much greater use of glass than older buildings, which means that most bomb casualties nowadays are caused by flying glass."Security Service Website.

With Bomb Blast Film, from Sureguard Window Films applied to the glass, the forces required to break the glass are increased due to the additional imparted strength of the polyester film....READ

In the event of the glass breaking, the shards of glass adhere to the film and the pane of glass remains in ‘one piece’.

However, if the blast is severe it may dislodge the whole pane from the frame.

Because all the shards of glass are held together by the film system the occurrence of glass related serious injury and fatalities are dramatically reduced. This is due to the reduced travel of a heavier object in addition to the limiting of sharp, dagger like glass fragments.

Because every building is different in it's construction, location, usage and exposure to risk, Sureguard Window Films provide a range of Bomb Blast reduction Window Films designed to meet best practice requirements.

Bomb Blast Window Film solutions fully comply with British Security Service recommendations as well as British, European and Ministry of Defence standards.
Glass Performance.

Different glass types break and "perform" in differing ways when subjected to explosive force. The three most common glass types used for external glazing in buildings are annealed (or float) glass; toughened glass and laminated glass.....READ

Annealed Glass.
The breakage pattern will be in the form of several cobweb patterns creating shards of glass. After leaving the frame these shards of glass will turn with the pointed end leading. Depending on the force of the explosion these shards will travel a great distance embedding themselves into anything that lies in their path.

Toughened glass.
Breaks into thousands of tiny pieces and after leaving the frame will shoot across the room like small bullets causing small lacerations and embedding themselves into obstructions. The potential injuries will be less than annealed glass as there are no sharp points reducing the penetration.

Laminated glass.
Will hold together better due to the PVB interlayer, which bonds 2 panes of glass together. If the force is sufficient there is the possibility of the glass delaminating from the PVB, however the mass of the whole pane will reduce the distance travelled thereby reducing the force of impact. Laminated glass also suffers from spalling which is where the outer layer of the glass breaking away into tiny slithers. These slithers are not a fatal threat however they can cause serious eye damage.

In all the above cases the breakage patterns and the risk of injury depends on the force of the explosion. Toughened glass is stronger than normal glass so can withstand greater pressures however once stress points are reached it will be removed from the frame thereby offering no protection. Laminated glass will break easier but could contain itself within the frame if the explosive cycle is not long in duration or high in force.
Edge Retention.

Where properties are at extremely high risk of being subjected to attack or risk of chemical explosion is high Sureguard Window Films can provide a highly effective edge retention system (sometimes referred to as frame anchorage system)...READ

This anchoring system marries high performance Bomb Blast Window Film with a mechanical "clamping" solution to provide maximum levels of security and safety and mitigates bomb blast.

As window systems vary in design and construction Sureguard Window Films carefully select the correct anchoring method most suited to the frame design. This approach ensures that optimum levels of protection are achieved.

This system works by using the Bomb Blast Window Film to hold the glass fragments together while the edge retention system retains the entire pane of glass and the window film within the original framing structure.

Even when an explosion is great enough to force the pane of glass away from one part of the window frame, Sureguard Window Film's edge retention system is able to hold the remainder of the pane and film.


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are divisions of Sureguard Energy Services Ltd, 3 Genesis Business Park, S60 1DX.
tags:Window film, solar film, privacy film, Window films, Bomb film, blast film, bomb blast film, bomb blast mitigation, security film