Selected White Float Glass

Special Properties

• High optical transmittance
• White and clear appearance, especially at small dimensions
• Reduced iron content compared to ordinary glass
• Excellent optical flatness and surface quality
• Low micro-roughness
• Economically priced

Typical Applications

• Substrates for optical coatings
• Base glass for antireflection coated windows
• Electronic displays and components
• Sight glass applications
• Machine windows
• Substrates for thin-film coatings
• Sensor Technology
• Display technology
• Measuring window
• Low-cost windows
• Thin glass applications
• Glass covers for fire alarm buttons

Related glass types

• BOROFLOAT^® 33 (Borosilicate glass)
• B 270^®-Superwite (Colorless clear crown glass)
• D 263 T (Thin and ultra-thin borosilicate display glass)
• AF 32^® eco (Alkali-free alumina-borosilicate thin glass)
• MEMpax^® (Thin borosilicate glass)
• AS 87 eco (Ultra-thin aluminosilicate glass)
• AF 45 (Modified borosilicate display glass)
• 0211 (Alkali reduced borosilicate thin glass)

Request for Quotation

Also available in 48 h Express-Service

Our selected float glass is a universal, economically priced, high-quality technical glass with excellent optical characteristics. The glass features a white appearance at smaller dimensions, resulting from the iron-reduced glass composition.

Numerous applications work based on our selected float glass material. The excellent optical performance from visible to infrared range makes the glass a versatile material many customers use for technical optics. It has almost no inclusions, high purity, and has proven to be a high-quality replacement for expensive glass materials in many optical applications. The cost savings in such cases often are significant.

The production of thin glasses with the high-quality micro float process guarantees an excellent optical flatness, an extremely low deviation from the nominal thickness within each batch, and a very low standard thickness tolerance. A large selection of standard thicknesses beginning at 0,4 mm plus a high surface quality allows an efficient fabrication of many optical components and bulk optics based on this economically priced glass.

To request a quotation for windows or substrates made of selected float glass with individual dimensions, please choose a thickness of the table in the specifications or click the button below.

Request for Quotation

Also available in 48 h Express-Service

Specifications

Transmission Curves

0,4 mm glass thickness:

• 250–450 nm
• 400–700 nm (visible range)
• 250–1100 nm

1,0 mm glass thickness:

• 250–450 nm
• 400–700 nm (visible range)
• 250–1100 nm

3,0 mm glass thickness:

• 250–450 nm
• 400–700 nm (visible range)
• 250–1100 nm

Standard Thicknesses

Thickness (mm)	Tolerance
0,40	+/-0,05	✔
0,55	+/-0,05	✔
0,70	+/-0,05	✔
0,95	+/-0,05	✔
1,00	+/-0,10	✔
1,25	+/-0,05	✔
1,60*	+/-0,10	✔
2,00	+/-0,20	✔
3,00	+/-0,22	✔
4,00	+/-0,20	✔
The thicknesses marked with "✔" are also available within 48–h Express Service.
*This thickness does not have reduced iron content.

Optical Properties

• Refractive Index: n_d = 1,520 (588 nm)

Mechanical Properties

• Density: 2,49 g/cm³
• Young's Modulus: 70 (±2) GPa

Thermal Properties

• Coefficient of Thermal Expansion (0-300 °C):
  87 × 10^-7
• Strain Point: 519 °C

Chemical Properties

• Hydrolytic Resistance:
  • (ISO 719) Class 3
  • (DIN 12.111) Class 3

Electrical Properties

• Dielectric Constant 7,75 (25 °C ; 1 MHz)
• Specific Resistivity 9,7 [Log R (Ω cm)]
  (25 °C ; 1000 Hz)

All given details and specifications are mean reference values and are not guaranteed. Also, please consider our "Notes on technical specifications".

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