Glass is naturally fragile. Thanks to the toughening process, the internal stresses within its structure change, which results in an increase in its bending strength. Toughened glass means safety. When it breaks, the pane is shattered into tiny pieces with blunt edges. This characteristic makes toughened glass particularly suited for use in highly sensitive places, with a high risk of being broken or exposed to high insolation – which means a big increase of internal thermal stresses.
Protection against injury from breaking glass
In order to prevent such danger PRESS GLASS proposes 2 types of solutions:
laminated safety glass, which thanks to its construction remains in its frame or bolted elements after the impact of a blow or smashing
hardened glass ESG, which after being hit breaks into small particles of blunt edges
All toughened glass units on offer fulfil the norms of PN-EN 12600 specifications.
High level of resistance to bending
Architects are still searching for more aesthetic materials which are used to make supporting elements. Glass constructions are also becoming more commonly used as supporting elements. Glass fins, glass stairs, glass floors are only a few examples of such applications. All these possibilities came into being thanks to the development of methods regarding tempering glass. From this onwards construction elements made out of monolithic glass can be put under significant strain of bending and pressurizing.
Resistant to thermal shock
Glass is naturally fragile. Thanks to the hardening process, the internal stresses within its structure change, which results in an increase in its bending strength. This characteristic makes hardened glass particularly suitable for use in highly sensitive places, with a high risk of being broken or exposed to high insolation – which means a big increase of internal thermal stresses.
Market offer includes glass:
An inseparable component of the toughening process is the so-called glass waviness. PRESS GLASS informs all customers that this effect can occur, in order to be fair in service. The waviness effect is of particular importance if glass panes are assembled in building facades, especially with big glazed surfaces.
It is visualised by a distortion of the view reflected in the facade. To decrease the distortion effect of a reflected picture, it is suggested that directional toughening is made. It means that e.g. in the case of toughening along the height, waviness will occur perpendicularly to this dimension.
Heat strenghtened glass
Heat strenghtened glass differs from the toughened glass by the kind of breaking netting, which occurs during glass panel damage. Due to its breaking characteristic, the panel assembled in the frame stays there after the damage, which protects against injury.
Thanks to this feature, TVG is starting to become interesting as an alternative for toughened. However, heat strenghtened glass is not counted among the types of safety glass.
Maximum dimensions [mm]
Heat Soak Test
The manufacturing process of float glass is done by the smelting of separate ingredients. Molten glass is poured out in special baths, and then formed to the required thickness in a floating process on the surface of melted tin, where it cools down. There exists a risk during this process that inclusions of nickel sulfide will occur. This phenomenon causes an increase of internal stress in the hardened glass, which could finally lead to self-breaking.
Even though this phenomenon occurs extremely rarely, one must allow for this possibility. It is suggested that the toughened glass is put under pre-heating process, during which the glass panes which have pollution content are eliminated from the shipment. PRESS GLASS Company offers the possibility of carrying out an extra glass check by means of the Heat Soak Test method.
Depending on the customer’s request, before starting the toughening process, the glass must undergo the machining process i.e. cutting, drilling, grinding or grinding and polishing together. Safety glass which is tempered, undergoes checking according to the standard EN 12150- 1. Hardened safety glass produced by PRESS GLASS can not undergo further machining.
All requirements have to be presented together with the order for tempered glass. If there is no additional description all hardened glass panes up to 8mm in thickness are produced by PRESS GLASS with blunt edges (it is included in the price). Glass panes which are thicker than 8 mm have matt grinded edges (grinding is not included in the price and should be added to the price of tempered glass).
Tempering of glass
Verification of hardened glass by HST
We constantly modify our manufacturing processes and change habits to limit the negative effect on the environment.
In order to facilitate the changes, we have adopted ISO 14001, the worldwide management system for environmental protection.
Installing cookies, etc. on your devices and access to these files.
Cookies are files that are saved and stored on the user's computer, tablet or smartphone, or another device used to access the Internet during the visit to the www.pressglass.uk website. Information on Cookies also applies to other similar technologies used within the above-mentioned website or mobile application.
The entity placing Cookies on the user's device and having access to them is the Controller, Press Glass S.A., with its registered office at ul. Kopalniana 9, 42-262 Nowa Wieś, Poczesna commune, entered into the National Court Register by the District Court in Częstochowa, 17th Commercial Division of the National Court Register under number 0000131477, using Tax Identification Number NIP 574-000-74-96 and Business Statistical Number REGON 150021158, share capital of PLN 500 000 (in words: five hundred thousand zlotys 00/100), paid in full, represented by the Management Board – in accordance with a valid legal authorisation.
Cookies shall be used by Press Glass to adapt the content of the pages of the website to the preferences of users and the best possible method of use of the pages of the aforementioned website by the users. Cookies allow to recognise the user's device and display pages tailored to his or her individual needs. As the controller, Press Glass can also create statistics based on them, which help to understand how website users use the pages of the www.pressglass.uk website. This allows Press Glass to improve their structure and content. These files also provide the ability to provide users of the above-mentioned website with advertising content that takes into account their needs and interests. The controller uses the following Cookies via the website / mobile application:
session cookies – are data necessary to maintain the session under the current activities of the website's users. This information is stored only in the user's end device's operating memory and remains there until the session is terminated – the website is closed or the web browser is turned off.
permanent cookies – are information that is stored between the user's visits on the website. These files can be collected in order for Press Glass to recognize how the user uses the website, types of his or her preferences, number of visits and duration of visits. This information does not record specific personal data of the user, but it is used to analyse the statistics of the website use. In the case of the Press Glass Mobile application with tools that are located on the www.pressglass.uk website, the mobile application can also remember the above-mentioned Cookies within the offered tools.
The Controller uses in particular the following Cookies:
Failure to change the settings in the scope of Cookies means that they will be placed in the user's end device, and thus, Press Glass, as the Controller, will have the right to store information about the user's end device and access this information.
Personal data collected by Press Glass as the Controller via www.pressglass.uk or using the Press Glass Mobile application is protected by means of security procedures as well as technical and organisational tools and measures.
CLAUSE OF CONSENT TO THE PROCESSING OF PERSONAL DATA COLLECTED BY AUTOMATIC MEANS IN THE SCOPE OF ITS PROFILING
I do not agree
I express my voluntary consent to the processing of my personal data including the automated analysis of my activity on the www.pressglass.uk website, in order to determine my potential interests for the purpose of adjustments of advertisement and commercial offers according to my preferences by Press Glass S.A. (hereinafter referred to as: the "Controller" and/or "Press Glass"), with its registered office at ul. Kopalniana 9, 42-262 Nowa Wieś, Poczesna commune, entered into the National Court Register by the District Court in Częstochowa, 17th Commercial Division of the National Court Register under number 0000131477, using Tax Identification Number NIP 574-000-74-96 and Business Statistical Number REGON 150021158, share capital of PLN 500 000 (in words: five hundred thousand zlotys 00/100), paid in full, represented by the Management Board – in accordance with a valid legal authorisation, also via the www.pressglass.uk website, pursuant to Article 6 sec. 1(a) in conjunction with Article 22 of Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC – General Data Protection Regulation, (OJEU L of 2016, No. 119, item 1).
I understand that my personal data will be stored until this consent is revoked, for the period necessary to perform the tasks of the Controller and/or comply with the archiving obligations that arise from the provisions of law.
I understand that after the expiry of the above dates my data shall be deleted or anonymised.
I have been informed that, at any time, I can request: to obtain access to my personal data, to correct, update or rectify it, to limit its processing, to suspend temporarily or permanently its processing, delete it or transfer it, that is, indicate the entity to which I want to send my personal data.
I have been informed that I have the right to object to the processing of my personal data free of charge. I understand that I can do this at the email address: firstname.lastname@example.org.
Bearing in mind your safety in the network, we would like to inform you that we use procedures designed to protect people under 16 years of age on the Internet.
If you are under 16 years of age, we cannot process your personal data in accordance with the law (Article 8 of the GDPR) for marketing purposes, including for the purpose of profiling your personal data, until your parents or legal representatives confirm to us on our e-mail address: email@example.com that they give such consent.
I declare that at the time of expressing this consent I am at least 16 years of age.