Continental Trade Sp. z o. o.

Technical glass

Colored borosilicate rods

Full color palette of colored rods

Available colors:

  • red,
  • opaque black,
  • transparent black,
  • opaque white,
  • pink,
  • violet,
  • green,
  • yellow,
  • amber,
  • dark blue,
  • light blue.

Standard rod's diameters  (see below): 6 - 42 mm. 
Standard rod's length : 1200 mm.

Typical dimensions
Diameter Length   Diameter Length   Diameter Length
6 1 200   15 1 200   26 1 200
7 1 200   16 1 200   28 1 200
8 1 200   17 1 200   30 1 200
9 1 200   18 1 200   32 1 200
10 1 200   19 1 200   35 1 200
11 1 200   20 1 200   38 1 200
12 1 200   22 1 200   40 1 200
13 1 200   24 1 200   42 1 200
14 1 200            


We can also provide non-standard sizes as needed: diameters from 3,5 mm to 46 mm and a length of up to 2 500 mm.  If you need a untypical size -please contact us.

Typical properties

Colored glass rods are made of borosilicate glass type 3.3, which has the following characteristics:

Property Value
Coefficient of linear thermal expansion 3.3 ±0,1 (10-6K-1)
Transformation temperature 525 ± 15°C
Working point 1 260 ± 20°C
Softening point 820 ±10°C
Density at 20℃ 2.23g/cm2
Hydrolytic resistance at 98°C ISO719-HGB1
Hydrolytic resistance at 121°C ISO720-HGA1
Acid resistance class ISO1776-1
Alkali resistance class ISO695-A2
Main composition

Colored glass rods are made of borosilicate glass type 3.3, which mainly consist of:

  • SiO2:                   80 ± 0,5%
  • B2O3:                  13 ± 0,2%
  • Al2O3:                2,4 ± 0,2%
  • Na2O (+K2O):   4,3 ± 0,2%

While every attempt has been made to verify the source of the information, no responsibility is accepted for accuracy of data.

Information clause

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Administrator, ie the entity deciding on which personal data will be processed and for what purpose, and in what way, is Continental Trade Sp. z o.o. (hereinafter "Continental Trade" or "We") with its registered office and address in Warsaw at Krasnobrodzka Street 5.

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