Shanghai Longway Special Glass Co., Ltd.
                                                                                                           
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18 Years
Since 2008
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Customized Tempered Borosilicate Glass Disc and Sight Glass Transparent

Price Negotiable
Price: NEGOTIATION
MOQ: 500 pieces
Delivery Time: Negotiable
Brand: LONGWAY
Product Description



Tempered sight glass and glass disc from boroiliscate glass and float glass


  • ‌Material‌

    • ‌Borosilicate Glass‌:
      • High resistance to thermal shock.
      • Excellent chemical durability.
    • ‌Float Glass‌:
      • Smooth, uniform surface.
      • Good optical clarity.
  • ‌Quality‌

    • Consistent thickness and dimensions.
    • Free from defects such as bubbles or inclusions.
  • ‌Function‌

    • ‌Sight Glass‌:
      • Visual inspection of fluid levels.
    • ‌Glass Disc‌:
      • Used in various optical and mechanical applications.
  • ‌Specific Application‌

    • Industrial equipment, automotive, and scientific instruments.
  • ‌Advantage‌

    • ‌Tempered Process‌:
      • Increases strength and thermal resistance.
      • Reduces risk of breakage and improves safety.
    • ‌Borosilicate & Float Glass‌:
      • Combines durability with optical clarity.
      • Versatile for multiple applications.


Item Glass disc, Glass wafer, Glass substrate, Sight glass
Material Optical glass, Qurartz glass, Pyrex, borosilicate glass, Float glass, borofloat
Diameter Tolerance +0/-0.2 mm
Thickness Tolerance +/-0.2 mm
Processed By Cutting,Grinding,Tempering, Polishing
Working temperature Resisting high temperature shock
Surface Quality 80/50,60/40,40/20
Material Quality No scratches and air bubble
Transmission >92% for visible light
Chamfer 0.1-0.3 mm x 45 degree
Surface Coating Available
Usage Lighting system, industrial area.





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Company Shanghai Longway Special Glass Co., Ltd.
Location Rm. 2111, Bldg. A, Tomson Center, No. 188, Zhangyang Rd., Shanghai, China
Contact Person Dai

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