Borosilicate glass for extrusion

Borosilicate glass frits for extrusion

ATP borosilicate glass for extrusion is a fundamental component in the hot extrusion process of metals, this is because its use protects and lubricates the metals during this type of thermal processing. Borosilicate glass frits are available in a variety of mesh sizes and temperature ranges achievable during the extrusion process. With a choice of formulations, ATP borosilicate glasses are suitable for a wide range of metals, including carbon steel, stainless steel, nickel alloys, exotic metals, and other ferrous and non-ferrous metals.

How does borosilicate glass work?

Borosilicate glass forms a protective barrier between the metal and the extrusion die, preventing the metal from sticking to the die and damaging it. For this reason, ATP extrusion glasses represent a valuable tool for ensuring smooth and efficient extrusion of metals.

The use of borosilicate glass has numerous advantages. As already mentioned, they ensure that the metal does not remain attached to the extrusion die and, consequently, they avoid damage, extend its life, and improve the efficiency of the entire process. The lubricating function also allows a notable reduction in friction which results in obtaining a significantly superior extruded product.

Ultimately, if you are looking for a way to protect and lubricate metals during the hot extrusion process, ATP extrusion glasses are a great option.

What are borosilicates?

Borosilicates (sometimes called by the commercial name of “Pyrex glass”) are a particular category of glassy materials, composed mainly of silicon oxide and boron oxide: the alkaline oxides present in the silica structure are replaced by boron oxides giving the resulting material unique chemical properties. This formulation gives, in fact, considerable resistance to high temperatures and thermal changes compared to other types of glass. Furthermore, borosilicate glass has, thanks to the presence of boron, low thermal expansion, which translates into less susceptibility to damage caused by volume variations following temperature increase.

Borosilicate glass characteristics

The chemical structure with a predominance of silicon and boron gives borosilicate glasses very interesting properties and great versatility:

  1. High temperature resistance: borosilicates are particularly appreciated for their ability to withstand high temperatures without warping or cracking. This thermal resistance is of fundamental importance in many industrial and scientific applications.
  2. Low thermal expansion: borosilicates have low thermal expansion, meaning they are less inclined to contract or expand significantly when exposed to temperature changes, reducing the risk of cracking or breaking.
  3. Chemical Stability: a distinctive feature of this glassy material is resistance to many corrosive chemicals, making them suitable for use in laboratories, chemical and pharmaceutical industries.
  4. Optical transparency: this type of glass has good optical transparency, allowing light to pass through them without significant distortion.
  5. Eco-friendly: borosilicate glass is used as a substitute for graphite as it is a product that does not emit fumes and consequently reduces emissions and promotes environmental protection.

Maximum temperature borosilicate glass

The maximum temperature that borosilicate glass can withstand varies based on its specific composition but, in general, it is known to withstand very high temperatures compared to conventional glasses. In many of its variations, borosilicate glass can withstand temperatures above 500°C without suffering structural damage or losing its physical properties.

ATP products, in particular, have extremely high hot working ranges specific to the type of metal being processed, ranging from 849°C – 1038°C, as in the case of ATP 562, up to ranges such as 1199°C – 1337 °C (ATP 134). Thanks to this property, ATP borosilicate glasses are perfect for use in high temperature processes such as the hot extrusion of metals.


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Borosilicate glass for extrusion

Industry Served

  • Aerospace Industries

    ATP has developed a variety of advanced aerospace coatings tailored to enhance the performance, durability, and efficiency of aerospace components across diverse operating conditions. Our aerospace coatings effectively mitigate wear, safeguard against environmental factors, and optimize critical processes. These coatings are meticulously engineered to address challenges specific to the aerospace industry. They offer superior resistance to extreme temperatures, combat corrosion, and ensure prolonged structural integrity. Whether for aircraft fuselage, engine components, or critical mechanisms, ATP's aerospace coatings are meticulously formulated to elevate aerospace systems' overall reliability, longevity, and operational excellence. Our commitment to innovation and precision ensures that our coatings play a pivotal role in achieving peak aerospace performance.

    Aerospace Industries
  • Forging

    Advanced Technical Products’ coatings can endure the intense heat the forging process requires. Oxy-Shield Coatings are advanced, water-based, non-hazardous and cost effective metal and graphite protection systems. They are formulated to protect metals and alloys from oxidizing or contaminating atmospheres at high temperatures for extended times. The coatings prevent the diffusion of gases.

  • Foundry & Casting

    Foundries have the potential to engage with a variety of metal substances. A primary incentive for businesses within the Foundry sector to opt for Advanced Technical Products when seeking top-notch coatings lies in our ability to provide coatings capable of enduring exceptionally high temperatures. In the process of manufacturing their metallic goods, all our clients seek and deserve nothing but the utmost quality.

    Foundry & Casting
  • Heat treatments

    Heat treatments are thermal processes applied to materials such as metals and alloys to modify their physical and mechanical properties. Heat treatments of metals are performed by controlling temperatures, heating, and cooling times to achieve certain desired characteristics in the material. The goal of heat treatments of materials is to optimize the mechanical, thermal, or magnetic properties of metals to meet specific design and use needs. The applications of metal heat treatments are suitable for various tools, for example, they are used in the manufacturing industry, especially in the production of mechanical components, hardware, tools, and other metal products.

    Heat treatments
  • Titanium Industries

    ATP has developed an assortment of glass coatings designed to thermally insulate, safeguard, and offer lubrication to Titanium alloys across an extensive spectrum of temperatures. These coatings from ATP regulate the creation of alpha case, eradicate the infiltration of hydrogen, and deliver exceptional lubricating properties during the stages of forging and extrusion.

    Titanium Industries