White Flashed Opal

White Flashed Opal glass consists of a colorless base soda-lime glass which is fused to a thin white flashed layer. Using White Flashed Opal, one can create an ambiance in diffused lighting similar to daylight with very little shadow. Flashed opal is perfect for creating a pleasant atmosphere in professional or residential areas.

Features

• Average transmission of approximately 35%
  
• Can be heat strengthened or tempered if needed
  
• Helps create a similar effect as a skylight
  
• Scratch resistant, non-deforming and non-combustible
  
• Readily available off the shelf in MR11 1.370” diameter and MR16 1.965” diameter sizes
  
  

Max Dimensions:
55” x 67”

Thickness (mm):
2.7mm -3.3mm
4.0mm -5.0mm

Transmission:

The transmission properties of White Flashed Opal Glass are for the most part dependent solely on the white layer, the thickness of which varies over the manufacturing width and is generally in the order of 0.45 ± 0.20 mm. The visual light transmission in the case of standard illuminant A is on average τ vA = 35 % (± 10 %).

Light Diffusion:

In the visible range of the spectrum DESAG White Flashed Opal Glass gives almost ideal diffusion. In the near infrared range a directed component is superimposed which appears on the diffusion indicatrix (fig.> 2) as a small “nose”. From λ = 800nm, the proportion of the directed transmission increases relatively sharply and where λ = 2000 nm, values of 50 % may be reached.

Chemical Properties:

White Flashed Opal glass is largely insensitive to the action of water, acids, alkalis and salt solutions (with the exception of hydroflouric acid).

Electrical Properties:

Specific electrical resistivity > 10₁₀ Ω/cm.

Thermal Properties:

Thermal conductivity at 90 °C
λ = 1.06 W/(m • K)
Transformation temperature Tg = 521 °C
Mean linear thermal coefficient of expansion α
(20-300 °C): 9.5 • 10_-6 K_-1

Mechanical Properties:

Compressive strength 800-930 N/mm₂
Bending tensile strength 30 N/mm₂ (characteristic value)
Density ∂ = 2.6 g/cm₂

Transmittance

Typical Applications:

• Lighting
• Luminous Ceilings
• Counter Tops
• Back Splashes
• Room Dividers
• Bathroom Showers
• Light Boxes
• Illumination Systems
• Instrumentation
• Monitors and Displays

JNS Glass and Coatings is not limited to any specifications or spectral curves shown on our website. 
Please let us help you design the coating or select the glass that is right for your application! 
Fabrication tolerances and spectral tolerances all conform to the specifications to be agreed upon by JNS Glass and Coatings and the customer.