Industrial division

Protection, resistance and guarantee.
Industry
Glass and polycarbonate are increasingly used as an inspiring material in a wide range of manufacturing and construction projects.
It is the job of Viraver’s Industrial Division to offer custom solutions for them all, from the large and structural, such as a glass floor in a building, to the small and user-friendly, like a scratch-resistant screen for a mobile device.
Viraver’s technical team offers its support all through the project development phase, always beginning with the client’s requirements, and guiding the project through all the laws and regulations to the production stage.
All manufacturing happens in Viraver’s own plant to guarantee maximum control of quality.
Products
  • Structural flooring
  • Low-density, high-strength windows
  • Protective glass and/or thermal toughened glass for mobile devices
  • Protective polycarbonate
Services
  • Pre-sales support – Project development
  • Product development
  • Manufacturing
  • Quality control
  • International certification
  • Worldwide after-sales service
Glass for the new millennium
Gallery
INDUSTRIAL DIVISION PRODUCTS

Sag bending glass (Contactless Gravity Bending)

To produce large curved surfaces, Viraver employs the sag bending technique/procedure.
This technique allows to bend fairly thick plates of glass of the maximum size offered by the market, with cylindrical or spherical curvatures, maintaining excellent optical properties because of surfaces without flaws, distortions and undulations.
Our team, with its expertise in curvatures and the 3D technique used for the elaboration, guarantees the continuity of the surfaces even in the most complex projects.

Chemical strengthened glass

The chemical strengthening process of glass is used to improve the physical characteristics of glass, increasing its resistance to mechanical stresses and to thermal shocks.
The process is achieved with long bath in potassium salts, during which the glass exchanges the sodium ions in the surface layer sheet with those of the potassium.
Once the sheet of glass is taken out of the bath, the superficial layers will have a permanent pre-stressing state compensated by a traction tension in the inner layers.
This state of tension affords the glass mechanical characteristics of up to 2 and half times superior in comparison to the same glass with the thermal toughening process and up to 6 times the overlaid glass.
The chemical hardening process by its nature does not involve any kind of optical distortion and imprint on the treated glass; thanks to the perfect balance of the tension state, the birefringence effect (anisotropy) is also absent.
Chemically strengthened glass is not subject to spontaneous rupture by nickel sulphide inclusions and therefore does not require Heat Soak Test treatments. Today, Viraver is the company which produces the biggest sheets of chemically toughened glass in the world: 8 m x 3,21.

Thermal toughening glass

The thermal toughening process in general is a process that increases the value of the mechanical resistance of a material.
The thermal toughening occurs by rapid uniform cooling of the glass from a temperature higher than the vitreous transition temperature. The temperature difference created between the surface and the core of the glass generates a permanent layer of tension in which there is compression on the outer part and a traction on the inner part.
This state of tension gives thermally toughened glass features of mechanical strength up to 3 times higher than the same reed glass.
In the event of glass breakage, the thermal toughening process results in high fragmentation, which bestows the glass to be a safety glass, even when monolithic.
In contrast, the thermally toughened glass suffers from the so-called "Glass Cancer" caused by the presence of micro inclusions of nickel sulphide that can generate a spontaneous breaking phenomena.
In order to reduce this risk, the HST (Heat Soak Test) process can be performed.
This treatment is regulated by EN-14179.

Laminated high-strength Glass

Laminated glass is one of the most used products in projects where glass is a structural part because it combines transparency with the robustness and security features required by standards and norms.
In Viraver lamination is executed for each piece of glass by bag technique and autoclave cycle.
Depending on the design requirements, the glass can be laminated with any type of interlayer, PVB, structural PVB, ionomer, polyurethane, EVA etc. up to the SentryGlas® Expression ™, which is used under the exclusive Kuraray license.
The stratification techniques used in Viraver allows innumerable materials to be added to the plastic interlayer that further enhance the purpose to the glass, for example: heating elements, heat shields, electromagnetic radiation shields, electric and decorative opacifier films.

Antiskid Glass

Viraver has qualified a particular product with a specific non-slip function.
It is a laminated glass on which on its surface has been deposited a non-removable paint that significantly increases the roughness of the glass.
It is possible to deposit the paint on the entire surface or to respect a specific design, such as a logo or dotted grid, to maintain the transparency of the element.

Micro-wire heating insertion glass / Heating Glass

Viraver produces flat and curved glass with de-fogging or de-icing heating systems to ensure maximum visibility in all environmental conditions.
The heating effect can be obtained by using two different technologies; by inserting micro-wire heating elements or coating heating elements.
According to customer requirements, Viraver offers a wide range of design solutions to fully integrate the element according to the power supply, unitary heating power, electrical use as per component.

Electromagnetic shielding glass

Privacy and protection are provided by windows that allow screening of electromagnetic emissions.
Using the principle of the Faraday Cage and guaranteeing a good compromise between the visibility and the shielding value required, laminated glass is produced with shielding features that can be produces in different thicknesses, with hardened glass and not and with varying interlayers.
Generally, the production technique used involves inserting, inside the plastic cross-section, of conductive elements which while maintaining the transparency requirements, ensure shielding efficiency.

Shady Glass - glass with variable transparency

For indoor privacy management where traditional curtains are not used, windows are available that can be rendered opaque by means of a simple electrical command.
This effect is obtained by interposing a specific encapsulated film containing liquid crystals.
When the film is active, the glass plate is rendered transparent, when turned off, the plate assumes a translucent-opaque appearance. The Viraver Shady Glass maintains the laminated glass safety features and complies with the CE marking regulations.

Polarzing Glass and Heat control glass

In order to optimize the optical-luminous performance of the glass, in addition to providing a wide range of coatings available on the market, which can be adapted to complex shapes, Viraver uses shielding solutions through the use of special interlayers or selective films incorporated within the plastic interlayer.
There are several technologies and materials that Viraver uses, depending on the conditions of use, of the requirements of Customer's binding laws and specifications.

VIRAFLAME

The fire resistance feature is increasingly demanded in many sectors and especially in the yacht sector; this property is determined by applying the Fire Test Procedure Code issued by the IMO.
Viraflame revolutionizes the concept of fire resistant windows, combining perfectly safety and design requirements, offering superior quality to traditional products on the market, even in terms of thickness reduction and transparency.
The Viraflame firefighter system does not include intumescent gel but exploits design innovation related to the frame, the type of fixing, and the sequence of installed materials.
The classification obtained in accordance with the FTP tests is A0 (extensible A30 with dedicated sprinklers) and with maximum dimensions of the parental element of 2240 mm X 2950 mm (free light 2214 mm X 2914 mm).
This system also complies with the requirements of the Passenger Yacht Code - CISR.

Bollet-proof Glass and Anti-burglary Glass

Viraver offers a full range of bulletproof and anti-burglary solutions, certified according to different levels of protection.
ViraShield BR (bulletproof glass) is a laminated glass composed of glass and polycarbonate sheets, joined together by the use of specific interlayers; all Virashield BR compositions are anti splinter.
During development, Viraver's ViraShield BR (anti-bulletproof) and anti-burglary (Viralam) products can be adapted to the customer's architectural and design needs through the use of heating systems and / or opaque films.
The objective is to make the armoured model indistinguishable, both for aesthetics and for optical quality, even through the remarkable reduction in thickness.
Viraver has many compositions classified according to international standards EN 1063 (civilian) and STANAG 4569 (military).

SentryGlas® Expression™

Viraver is the only licensing company in Italy for Kureray's SentryGlas® Expression ™ technology. Through this technology high resolution digital print is applied, using specific inks and PVBs, any photographic image, logo, geometric design or material reproduction inside laminated flat and curved security glass.

Thermoforming

The thermoforming process consists in giving the flat sheet the shape of curved surface by means of a thermal process.
The bending equipment used can be in fiberglass, carbon-fibre, glass or wood. The use of these materials depends on the main requirements of the product and its repeatability.
In order to ensure maximum visual quality, every plastic element is optically tested after bending, whether it is part of a monolithic product or a layered product.

Anti-scratch coating for polycarbonate

The basic feature of plastic materials is their ductility and lightness; on the contrary they can be easily perishable over time; this deterioration is mainly resulting from scratches.
In order to increase the durability of polycarbonate products, Viraver has developed the application of a special anti-scratch coating that has the function of hardening the surface making it extremely resistant compared to the original product.
The resulting product acquires the hardness required to meet the durability requirements defined by international standards (ECE R43 and DOT).
The treatment can be applied on one or both sides of the polycarbonate.
Images Copyright

NAUTICAL

BENETTI: Photo courtesy by Benetti
BENETTI VIVACE 125: Photo Benetti by Quin Bisset
CRN: CRN Shipyard
WIDER: Wider S.r.l.

AUTOMOTIVE

ONROAK: Copyright@DDPI

ARCHITECTURE

SFERA AZERBAIJAN: Cliente BIFOR per PADIGLIONE AZERBAIJAN EXPO 2015 - Disegni esecutivi : Dott. Arch. Luca Persico - BIFOR