Head Office


Head Office
5 The Cross
Ayrshire KA24 5AL

Making Laminated Security Glass Without Machinery



Home Performance Stability Properties Easy As Contact



bulletproof security glass being made in  Mauritius

No Machinery Required
No Heating Costs
No Size Limits
No Health Hazards
No Problems


    New sales marketing company name chosen by Jim Langlands, who in 1977 invented a simple, easy to follow method for producing resin laminated safety and security glazing products without any machinery or heating/running costs (UK Patent 1600847, US Patent 4234533, Canadian Patent 1135166 and others followed). In addition to applying for patents, it was suggested that a trade mark was necessary. In the UK registered trade marks were not supposed to be too descriptive, so after various names containing "safe", "secure", "sure", "lam", "light", "lyte" etc had been rejected it was decided to go for surelyte minus the letters "e" hence the name "Surlyt".  


     The resin, method and products were called Surlyt, pronounced sure light. Trade mark registrations UK 1077142, US 1266344 and others followed.  


     Many people in the glass industry today are unaware that the very first laminates produced were liquid cast-in-place laminates. In the UK these laminates were called Triplex which was also the name of the company which manufactured the laminates.  The main use was in vehicle glazing but they had a drawback, they discolored in UV light. 

     In the late seventies the only one way to make high quality laminated glass which did not discolor in UV light was sometimes called the pvb or autoclave method. Depending on the size of the autoclave the cost for the complete production line in 1980 could exceed five million US$, as it also required a temperature controlled production area which had to be kept in a near sterile condition in addition to  being totally dust free.  


     But the Surlyt method required no machinery, could be carried out almost anywhere and required neither commercial air conditioning nor temperature control. Our adverts at that time said  " Surlyt was as easy as 1, 2, 3,  " Click here to see how easy.


    Other  major advantages were that the resin was user friendly, low viscosity, low shrinkage, quick setting and crystal clear. Like all thermosetting resins, polyester, acrylic and the rest, there was a shelf life, at room temperature it was twelve months. But we also supplied a concentrate which had unlimited shelf life regardless of the storage temperature. The concentrate was inexpensive to ship as it was classed as non hazardous for land, sea or air freight. All that was required to turn the concentrate into resin was an open container  with a capacity of approximately 12 Imperial gallons ( 15 US gallons, 45-50 litres ), a paint mixer/stirrer about 24" ( 600mm ) long, an electric drill+ drill stand and styrene ( a low cost petro-chemical by product ). The total time required to mix a batch was about ten minutes.


     Security glass manufacture with the pvb or autoclave method requires the two glass surfaces to be almost perfectly parallel. This restricts the range of patterned laminates to those which have little or no texture. The color range is small and there are limits, normally about 3" ( 75mm ) to the thickness which may be produced for high security glazing products.

     It has been said that imitation is the most sincere form of flattery. But none of the ten or so imitators said that they had copied the Surlyt method of manufacturing laminated glass.


     They all claimed that their method was all their own idea. Even those who had copied a copy, or a copy of a copy. But none claimed to have developed it before 1977.


   So, being the undisputed first, our new marketing name is 1st Lam

If the above seems interesting and  you would like some information sent to you regarding Surlyt manufacturing costs for security glass click here.

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