SUN MIROX by AGC Solar is extra clear extra thin glass for parabolic dish and parabolic trough collectors.

Solar Mirror Thick

Extra clear glass mirror for solar towers and fresnel collectors

Type

 

 

Extra clear glass mirror
(silver, copper, 2 paint layers)

 

Applications

 

 

Tower or Fresnel

 

SOLAR MIRROR THICK is an extra clear high reflectivity glass mirror perfectly suited for use in solar tower or Fresnel collectors.
Its composition (silver, copper, 2 paint layers) ensures a very high chemical and mechanical durability.

SOLAR MIRROR THICK conforms to EN1036.

MAIN CHARACTERISTICS

Energy reflectivity (%)

3mm: up to 94

ISO 9050 AM1.5

 

4mm: up to 93.6

ISO 9050 AM1.5

Specific weight (kg/m²)

3mm: 7.5kg

 

 

4mm: 10kg

 

Typical length

Up to 2550mm

 

Typical width

Up to 3210mm

 

Other dimensions available on request.

AGC can help evaluating these values according to other standards and/or to the specificities of the final application.

 

DURABILITY TESTS

Humid chamber

Passed

EN1036

Neutral salt spray

Passed

ISO 9227

CASS

Passed

ISO 9227

Thermal cycling

Passed

From -20°C to +75°C, up to 100% RH

EMMAQUA

Passed

 ASTM D4364

UV resistance

Passed

UVA 340 at 60°C, 39W/m²

 

 

 

MECHANICAL CHARACTERISTICS- NOT LAMINATED

Mechanical strength (MPa)

45

Annealed

Young modulus (GPa)

70

EN572

Poisson ratio

0.2

EN572

Hardness

Moh (scratch hardness)

6

EN572

 

Knoop (identation hardness)

470

Indenter load 500g

Density (kg/m³)

2500

EN572, at 18°C

 

THERMAL CHARACTERISTICS

Hemispherical emissivity

0.84

Between -18°C and 66°C

Expansion coefficient (10-6 1/K)

9

EN572, between 20°C and 300°C

Specific heat (J/kg/K)

720

EN572

Thermal conductivity (W/m/K)

1

EN572

Softening point (°C)

722

 

Annealing point (°C)

552

 

Strain point (°C)

500

 

 

CHEMICAL COMPOSITION

Silicon dioxide (SiO2, %)

69 to 74

EN572

Sodium oxide (NaO, %)

12 to 16

EN572

Calcium oxide (CaO, %)

5 to 12

EN572

Magnesium oxide (MgO, %)

0 to 6

EN572

Aluminium oxide (AI2O3, %)

0 to 3

EN572

Trace elements (FeO, etc., %)

<1