• Facebook
  • Twitter
  • Pinterest
  • LinkedIn
  • Youtube
  • Instagram
  • Run
  • Fundacja
  • Set of certificates
  • Quick links
    • Declarations of performance CE
    • Set of certificates
    • Download the brochure
    • General terms and conditions of sale (GTCS)
    • Company standard
  • Contact
  • International English
    • Deutsch
    • Français
    • Italiano
    • Polski
    • Русский
    • Svenska
  • International English International English International English en
  • Deutsch Deutsch German de
  • Français Français French fr
  • Italiano Italiano Italian it
  • Polski Polski Polish pl
  • Русский Русский Russian ru
  • Svenska Svenska Swedish sv
PRESS GLASS SA
  • Market offer
    • Glazed units
      • Low emission glass
      • Glazed units with warm edge
      • Solar control glass
      • Safety and Security glass
      • Bullet-proof glass
      • Acoustic glazed units
      • Fire-resistant glass
      • Ornamental glass
      • Window dividers
    • Special glass
      • Toughened glass
      • 3D Glass
      • Bent toughened glass
      • Heat Soak Test – HST
      • Machining of edges
      • Drillings
      • Cuttings
      • DIGITAL PRINT
      • Silk-screen printing
      • Spandrels
      • Laminated glass
    • Single glass
  • Tools
    • PRESS GLASS
    • Suppliers
  • Reference projects
  • About us
    • Code of Conduct
    • Continuous development
    • Modern logistics
    • Photo gallery
    • Environment Protection
    • Production potential
    • Best quality
    • Sport and support
    • Quality management
    • Technological advantage
    • Wide assortment
    • For shareholders
    • News
    • Individual support
    • Cooperative potential
  • Careers
  • Contact
  • #30PressGlass
  • Search
  • Menu

Toughened glass

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.

Advantages

reduces the risk of injury in the case of the pane breakage

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.

it has greater resistance to bending in comparison to ordinary glass

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

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:

with holes and cuttings
with edges that have been bevelled, grinded or polished
with right-angled shapes, multi-angled shapes, arch-shapes
covered with silicon coatings and enamelled
silk screen printed
in the shape of single formats or double and triple glazing
Toughening
type
Glass thickness
[mm]
Minimum dimensions
[mm]
Maximum dimensions
[mm] T-thermofloat
Standard 4 100×250 1700×2500 (T:1500×2500)
5 100×250 2000 × 3000 (C: 2000 × 3000)
6-19 100×250 3200×7000

Directional hardering

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 strengthened glass

Heat strengthened 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 strengthened glass is not counted among the types of safety glass.

Glass thickness
[mm] T-Thermofloat
Minimum dimensions
[mm]
Maximum dimensions [mm]
4 200×450 1700×2500 (T:1500×2500)
5 200×450 2000 × 3000 (T: 2000 × 3000)
6-12 (T:6-10) 200×450 3200×7000

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.

Heat Soak Test (HST)

See more

Machining of edges

with chamfered, ground or polished edges

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).

Movies

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.

Read more

© Copyright - PRESS GLASS Holding SA 2021
  • Facebook
  • Twitter
  • Pinterest
  • LinkedIn
  • Youtube
  • Instagram
  • Run
  • Fundacja
  • Contact
  • Privacy Policy
  • Economic Freedom Foundation
Scroll to top
In addition to strictly necessary cookies, we also use cookies to improve the user experience.
I accept all cookies I accept only the necessary cookies Cookie Settings Privacy policy
Cookie settings

Cookie settings

Cookies are small text files placed on the user’s computer or mobile device, which enable interface customisation of your web browser and provide better functioning of our website.

To ensure proper functioning of our website via strictly necessary cookies, the data stored in our systems is anonymised and it does not involve processing of any personal data.

Our website may also install other cookies, but only with your consent. You can revoke your consent any time without any consequences for browsing our website.

Our website uses the following cookies
Strictly necessary cookies
Always Enabled
Strictly necessary or required cookies are restricted to what is essential to provide the service requested by the user or basic functioning of the website and as such do not require your consent.
CookieDuration
cf7emc_user_token1 day
cookielawinfo-checkbox-marketing1 hour
cookielawinfo-checkbox-necessary1 hour
cookielawinfo-checkbox-non-necessary1 hour
CookieLawInfoConsent1 hour
mte-notification-bar-landingpageSession
viewed_cookie_policy1 hour
Performance cookies
Performance cookies enable measuring traffic and analysing the behaviour of website visitors to improve functioning of the website.
CookieDuration
_ga2 years
_gat_UA-21037135-330 minutes
_gid1 day
Marketing cookies
Marketing cookies are used to deliver relevant advertising and marketing campaigns to visitors. These cookies track visitors across websites and collect information to deliver tailored advertising.
CookieDuration
_fbp3 months
sb2 years
SAVE & ACCEPT
Informujemy, że ramki SWISSPACER zostały czasowo wycofane z planu produkcyjnego.
Parametry dotyczące ramek SWISSPACER prezentowane na tej stronie służą jedynie do celów porównawczych.
Es wird Ihnen mitgeteilt, dass die SWISSPACER Rahmen vorübergehend aus dem Produktionsplan zurückgezogen wurden.
Die auf dieser Seite angegebenen Parameter der SWISSPACER Rahmen dienen lediglich Vergleichszwecken.
Please be advised that SWISSPACER bars have been temporarily withdrawn from the production plan.
The SWISSPACER frame parameters on this page are for comparison purposes only.
Nous vous informons que les cadres SWISSPACER ont été temporairement retirés du plan de production.
Les paramètres relatifs aux cadres SWISSPACER sont présentés sur le site uniquement à des fins de comparaison.
Obavještavamo da su distanceri SWISSPACER privremeno povučeni iz proizvodnog programa.
Prikazani na ovoj stranici parametri koji se odnose na distancere SWISSPACER služe samo u komparativne svrhe.
Vi informiamo che i distanziatori SWISSPACER sono stati temporaneamente ritirati dal piano di produzione.
I parametri dei distanziatori SWISSPACER presentati in questa pagina servono solitamente a scopo di confronto.
Информируем, что рамки SWISSPACER временно сняты с производства.
Параметры рамок SWISSPACER, представленные на этом сайте, предназначены только для сравнения.
Vänligen observera att ramarna SWISSPACER tillfälligt drogs tillbaka från produktionsplanen.
Parametrarna för SWISSPACER-ramar på denna sida är endast avsedda för jämförelse.
Ze względu na ciągły rozwój nasz asortyment może różnić się w zależności od rynku.
Dostępność produktu należy zawsze potwierdzić z Działem Sprzedaży.
In Berücksichtigung auf ständige Entwicklung unserer Produkte, kann sich das Angebot auf verschiedenen Märkten unterscheiden.
Die Zugänglichkeit vom Produkt sollte immer mit der Verkaufsabteilung bestätigt werden.
Due to the continuous development of our product range may differ from market to market.
Product’s availability should always be confirmed with Sales Department.
En raison du développement continu de notre gamme de produits, notre gamme de produits peut différer d’un marché à l’autre.
La disponibilité du produit doit toujours être confirmée auprès du service commercial.
Zbog kontinuiranog razvoja naš asortiman proizvoda može se razlikovati od tržišta do tržišta.
Dostupnost proizvoda uvijek treba biti potvrđena s odjelom prodaje.
Considerando il continuo sviluppo della nostra gamma di prodotti, l’offerta puo’ variare in diverse regioni.
Si prega di verificare sempre la disponibilità del prodotto con il nostro Ufficio Commerciale
В связи с постоянным развитием ассортимент нашей продукции может отличаться от рынка к рынку.
Наличие товара всегда необходимо подтверждать в отделе продаж.
På grund av den kontinuerliga utvecklingen av vårt produktsortiment kan det skilja sig från marknad till marknad.
Produktens tillgänglighet ska alltid bekräftas med försäljningsavdelningen.
Facebook
Facebook
  • International English
  • Deutsch
  • Français
  • Italiano
  • Polski
  • Русский
  • Svenska
Realization Tab2
Facebook