BOROFLOAT®
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BOROFLOAT®

The huge number of applications BOROFLOAT® is used for is testament to its exceptional range of technical advantages. Its light transmission in the visual wavelength range is exemplary, chemical and thermal resistance extraordinarily high, and its mechanical strength provides strength and reliability.

A highly valued portfolio of properties

Outstanding thermal resistance

Thanks to an extremely low coefficient of thermal expansion, BOROFLOAT® is highly resistant to elevated temperature levels. It also handles rapid cooling from high temperatures, such as the temperature difference between a hot panel center and cold panel edge.

Exceptionally high transparency

SCHOTT’S microfloat production process and purity of component materials ensure that BOROFLOAT® enjoys excellent transparency and distortion-free light transmission in the near infrared and ultraviolet ranges. This makes it highly valued in the optics, photonics and opto-electronics fields.

High chemical durability

Acids, alkalis and other organic substances have negligible impact on the integrity of this glass, making it an extremely stable material ideal for use in the medical and analytical technology fields. Its hydrolytic resistance is also impressive, a quality demanded by laboratories across the globe.

Excellent mechanical strength

Light with high elasticity, BOROFLOAT® is strong thanks to its chemical composition, enhancing reliability and product life. The material handles high pressure and large mechanical loads, with its structural integrity matched by its bending strength. BOROFLOAT® is also abrasion- and scratch-resistant.
Thicknesses and dimensions
Thermal
Optical
Inherent fluorescence
Chemical
Mechanical
Thicknesses and dimensions

Chart showing the standard thicknesses of BOROFLOAT® glass

 

Chart showing the standard sizes of BOROFLOAT® glass

 

Chart showing the limits and rectangularity of BOROFLOAT® glass

Thermal

Chart showing the thermal properties of BOROFLOAT® glass

 

Chart showing the maximum operating temperatures of BOROFLOAT® glass

 

Chart showing the viscosity of BOROFLOAT® glass

 

Graph showing the coefficient of linear thermal expansion of BOROFLOAT® glass

The CTE of BOROFLOAT® 33 is 3 times lower than the CTE of Soda-lime glass.

 

Graph showing the viscosity of BOROFLOAT® glass

 
 

 

Optical

Chart showing the optical index of refraction of BOROFLOAT® glass

 

Chart showing the optical properties of BOROFLOAT® glass

 

Graph showing the transmission of BOROFLOAT® glass

 

Graph showing the transmission of BOROFLOAT® glass in the UV range

 

Graph showing the dispersion of BOROFLOAT® glass

 

Graph showing the solarization of BOROFLOAT® glass

Inherent fluorescence

Graph showing the inherent fluorescence of BOROFLOAT® glass at 365

 

Graph showing the inherent fluorescence of BOROFLOAT® glass at 488

Chemical

Chart showing the chemical resistance of BOROFLOAT® glass

 

Chart showing the corrosion test results of BOROFLOAT® glass

 

Graph showing the hydrolytic resistance of BOROFLOAT® glass

Quantity of Na2O released from BOROFLOAT® 33 compared tosoda-lime glass depending on the temperature after 16 hours.

 

BOROFLOAT_chemical_graphic_IONexchange.png

Compared to soda-lime glass, BOROFLOAT® 33 has a significantly higher hydrolytic resistance, because the number of sodium ions in the glass network is significantly lower with BOROFLOAT® 33. The few sodium ions are also more strongly bound. 

Mechanical

Chart showing the mechanical properties of BOROFLOAT® glass

 

Chart showing the critical forces of BOROFLOAT® glass

 

Graph showing the abrasion resistance of BOROFLOAT® glass compared to other borosilicate glasses and soda-lime flat glass

 

Graph showing the sand abrasion of BOROFLOAT® glass compared to soda-lime flat glass

Want to know more? Let’s talk

Whether you need more information, samples, a quote, or advice for a project, we would be delighted to talk to you.

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