Şişecam Ultra Clear Laminated Glass
Glass is a brittle material, and standard Float Glass has low impact resistance. Increasing the glass thickness improves the impact resistance of the glass, but the risk of injury caused by glass breakage cannot be eliminated.
Şişecam Ultra Clear Laminated Glass is the laminated safety and security glass produced with low-iron Float Glass. Şişecam Ultra Clear Laminated Glass provides a more transparent view compared to Şişecam Laminated Glass and shows the objects displayed behind it in their true colors.
- Thanks to its transparency, a more vivid view of the objects displayed behind it is obtained.
- Minimization of the risk of injury in accidents caused by people hitting the glass.
- Security against external impacts. Prevention/delay of entry in case of attack and theft attempts with tools such as stones and sticks.
- Contribution to sound insulation.
- Blockage of ultraviolet (UV) rays, which cause the discoloration of items and fabrics, by 97-99%.
Areas of Use
Şişecam Ultra Clear Laminated Glass shows the objects displayed behind it better and provides a clearer view when looked at from the lateral section. It can be therefore used wherever Şişecam Laminated Glass is used, especially in the following areas
- Store windows
- Roof and ceiling glass
- Windshields, Railings
- Interior partition panels
- Museums
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The code of practice regarding safety glass is included in the "TSE 13433 Glass in building - Code of practice for safety related to human impact" standard. As stated in this standard, the use of Şişecam Laminated Glass is a good solution for safety in the following units where glass breakage poses a danger
- Glazing up to 80 cm from the floor,
- Glazing that continues uninterruptedly from the floor to the ceiling,
- Glazing in joinery glass doors and side joinery of glass doors,
- Overhead glazing.
For security purposes, Şişecam Ultra Clear Laminated Glass is a proper solution. Şişecam Ultra Clear Laminated Glass can be used in the following areas
- Store windows
- Roof and ceiling glass
- Windshields
- Railings
- Interior partition glass
- Museum display units
- Bank branches
- Hospitals (Especially psychiatric clinics)
- Heavy-traffic crossings
- Schools
- Kindergartens
- Police stations and military establishments
- Sports complexes with intense activity
Production Method
Şişecam Ultra Clear Laminated Glass is produced by combining two or more glass plates under heat and pressure with the help of special binding polyvinyl butyral (PVB) layers.
Size and Thickness
You can find the level of safety and security you need in glass applications in the table below
Colors and Patterns
Şişecam Ultra Clear Laminated Glass can be produced using colored PVB and offers different options in decoration.
Şişecam Ultra Clear Laminated Glass Opaque provides privacy and security without compromising on daylight.
Quality
Şişecam Ultra Clear Laminated Glass has the CE mark and is produced according to the results of the test carried out for the durability class under TS EN 12600 and TS EN 356 standards in internationally accredited laboratories, as required by the relevant marking system.
Durability Classes of Şişecam Ultra Clear Laminated Glass according to EN 12600
Code of practice
Laminated Glass Cutting
Laminated glass is cut on a laminated glass cutting table. The laminated glass cutting table cuts the glass from both the top and bottom at the same time. Then, it automatically breaks the glass from top and bottom. The use of Float Glass cutting tables for cutting laminated glass is an unhealthy method and requires a longer time compared to a laminated glass cutting table. In addition, difficulty turning the glass may even cause the laminated glass to break from the uncut side. Our customers who cut on this type of table must first make an X cut, then a Y cut, according to the cutting size. Especially in 3+3, and 4+4 thick laminated glass, unwanted breakage may occur when cutting and separating both X and Y dimensions at the same time and lifting the uncut surface with a crane for the purpose of turning it.
When choosing a laminated glass cutting table, the following are important factors: the bridge cutting length (3210-6000 mm), the feeding method, the way the glass is transported, whether the table is tiltable or not, heating equipment (infrared medium wave), cutting head sensitivity, minimum cutting length, and top and bottom breaking equipment. Although machine manufacturers have different applications in laminated glass cutting, it is recommended to use volatile or washable cutting oils. Kerosene should not be used for cutting. Before starting the cutting, the dust on the feeding table and laminated glass must be air-cleaned. Thus, the need for frequent cleaning of photocells, LEDs, and switches on the cutting system is reduced. PVB protrusions on the edges of laminated glass are formed during production and cannot be prevented. These protrusions are scraped off with the cutting blade to ensure that cutting precision is not lost.
Just as in raw glass cutting, cutter's relays (diamonds) are used at different angles depending on the glass thickness in laminated glass cutting. Diamonds of 135 are used for 3+3, 145 for 4+4 and 5+5, 145 or 156 for 6+6, and 156 for thicker laminated glass or laminated glass with thick PVB (more than 0.76 mm). Plastic-body cutter's diamonds are generally used on laminated glass cutting tables. Although diamonds of 135 are commonly sold in white plastic bodies, diamonds of 145 in black, and diamonds of 156 in red, it is recommended to verify this with the seller at the time of purchase.
Another factor, as important as the selection of the cutter's diamond, is the pressure value given to the cutting heads. Although the min/max cutting pressure values for each machine's cutting conditions are given by the machine manufacturer, these values may need to be revised depending on the conditions of the glass and the machine.
Points to Consider During Laminated Glass Cutting and Stocking
Since the glass exerts pressure on the lower cutter's diamond with its own weight, the pressure value of the lower cutter's diamond must be 0.1 or 0.2 bar higher than the pressure value of the upper diamond.
If there is a burring on the cutting line, it means that the pressure value on the side where the burring occurs is high and needs to be reduced. Otherwise, unwanted breakage may occur.
The angle of the cutter's diamond changes with use. Therefore, the cutter's diamond must be replaced depending on the usage time.
When changing the cutting pressure, the desired value must not be set directly on the manometer. The pressure value must first be reduced to 0, and after waiting for 1-2 seconds, increased to the desired value.
During cutting, it should be checked that the vacuum discs hold the glass steady and that the mechanical measuring device, if any, presses firmly on the glass.
The cutting oil spray mechanism of the lower cutting head must have a filter. Otherwise, the glass pieces and dust formed during cutting will block the oil spray hole and may cause the glass to break unintentionally.
During cutting, the wheel located next to the upper head ensures that the glass below is broken (opens the cut). Attention must be paid to the pressure of this wheel. If there is an imbalance in the placement of the machine or the parallelism of the heads, it will be difficult to break the cut glass, and the glass may break in an unintended place. This wheel should be centered on the glass's cutting line and should press on the glass at the point where the cutting line ends. If there is residue formed by cutting oil and dust accumulation on the wheel, it will skid during breaking, and unwanted breakage may occur.
In these cases, it is necessary to open these parts of the glass manually or with a device that hits with enough force not to damage the glass.
The upper glass is broken by the breaking bar at the bottom of the machine and the upper compression bars. These bars must be smooth and free of wear. During this breaking, the upper vacuum discs, if any, must hold the glass.
The pressure difference in the breaking bars may cause the glass to break unintentionally.
There must be no change in the air pressure coming to the cutting table.
The inner part of the belts that move the cutting heads are usually wired. These wires may break over time and lose their plastic layer properties. Therefore, belts must be checked constantly.
Pneumatic parts of the cutting heads must be checked routinely, and oil leakage or felt problems must be resolved by routine maintenance. The reason for unwanted fractures may be the lack of maintenance of pneumatic parts.
The upper and lower cutting heads must cut the glass at the same level at the same time. If there is a difference between the two cuts, the glass will either break with hackle marks or shatter. In this case, the cutting table manufacturer must re-adjust the table settings.
Glass pieces and dust formed during cutting accumulate on the heating resistor used to separate the PVB from the glass, causing the resistor to turn to an opaque color. Due to the dirt and PVB drops that accumulate over time, the time it takes for the PVB to separate from the glass increases, and breakage with hackle marks occurs. As a result of overheating, PVB may leak into the interior and cause unwanted breakage. Another disadvantage is the need to cool the glass that is overheated on one edge. Otherwise, if the overheated part is cut immediately, the glass may break. The resistance must be kept clean at all times and cleaned with special cleaning fluids or alcohol.
The hoses that carry air to the cutting heads must be solid and without holes. Otherwise, unwanted breaks may occur in the glass due to skip cutting. The hoses must not rub anywhere during operation.
The cutting switch that follows the glass on the cutting head should be constantly lit green. If it blinks while cutting, this is a sign that it is skipping a cut. In this case, the switch position must be adjusted or changed.
Maximum importance must be given to laminated glass storage conditions. Maximum care must be taken to ensure that it is not affected by humidity and temperature conditions. If laminated glass is installed after cutting without being washed and dried completely, it is highly likely that it will corrode. Therefore, if laminated glass is to be installed as a single unit, it must be installed after washing.