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Which interlayer to choose
Laminated glass is a method of creating flat or bended glass bonded together over the entire surface by polymeric film materials.
There is a variety of interlayers and applications. Which interlayer to choose.
From origin laminated glass is produced with a PVB to increase safety by combining glass with a thermoplastic polymer / plasticizer.
The interest (development) for architectural applications with the aim to reach more daylight in buildings with the use of glass, together with safety standards was born.
Now a day we see more and more developments to the performance of glass:
Colors, high transparency, durability, bullet resistance, acoustic performance, safety, thinner glass.
The market offers more than just PVB, there is a range of interlayers such as ionomers, EVA, TPU for a variety of applications.
PVB interlayer [Polyvinyl butyral]
is a resin mostly used for applications that require strong binding, optical clarity, adhesion to many surfaces, toughness and flexibility. Enhance glass in safety, security, strength, solar/UV control, style, sound control.
- High rate of adhesion to glass
- High quality of product
- Necessary to work in a clean room
- Most PVB are sensitive to moisture
- Special storage required
- Controlled environment
EVA [Ethylene-vinyl acetate]
EVA is an elastomeric polymer that produces materials which are "rubber-like" in softness and flexibility. The material has good clarity and gloss, low-temperature toughness, stress-crack resistance, hot-melt adhesive waterproof properties, and resistance to UV radiation. EVA is competitive with rubber and vinyl products in many electrical applications.
- Good adhesion to glass
- Lower cost of both film and equipment
- Highly adhesive to thermo-plastic materials,
metal, paper
- Easy storage: room temperature
TPU [Thermoplastic polyurethane]
TPU has many applications like hurricane impact resistance, in architectural glazing as physical security and containment in transportation glazing for autos, rail, VIP and armor system in aerospace as impact glazing in electronics for PC lamination and encapsulation, TPU is fully resistance to UV degradation and has an excellent optical clarity, long lifetime and no cold room storage required. TPU is also a popular material found in outer cases of mobile electronic devices, such as mobile phones. It is also used to make keyboard protectors for laptops and more.
- Very high rate of adhesion to glass
- Insensible to humidity
- Very high quality of the product
- Necessary to work in a clean room
- Resistant against most chemicals
- Very suitable for laminating polycarbonate
Thermoplastic, Acryl
Ionomer [Ionomer-thermoplastic]
a thermoplastic polymer having ionic bonds between the polymer chains. Using Ionomer polymer technology making it water resistant, clear and strong. Performance benefits developed for hurricane applications could also be beneficial for many other aspects of a building. This includes facades, overhead glazing, balustrades, doors and partitions.
- High rate of adhesion to glass
- High quality of product
- Foil absorbs moisture when it is not stored and
processed under proper conditions.
Interlayers Industry
Soon we will offer our wide range of interlayers in the following fields:
Clear
Structural
Acoustic
Solar
Colors
Storm
Automotive
Trucks
Aircraft and Aerospace
Rail
Marine
Militairy
Safety
Security