Crystal Glass Reflectors


Because of its unique optical, chemical and mechanical properties, glass is particularly well suited for use in sophisticated traffic technology. SWAREFLEX has been using high-quality, extremely robust and durable Swarovski special-purpose glass elements for its reflector products for decades.

SWAREFLEX glass reflectors work on the principle of retro-reflection: A bundle of light rays striking the biconvex glass elements is reflected back to its original place, regardless of the direction from which the light ray bundle hits the glass elements. To optimize reflectivity, the shape of the biconvex glass elements is calculated precisely using computer technology. The back of the glass elements used consists of a highly reflective silver mirror layer and additional special protection layers.

Products at a glance

  • Road Marking Studs Made of Plastic with Resistant Special-Purpose Glass Elements

  • Road Marking Studs Made of Metal with Resistant Special-Purpose Glass Elements

  • 360° Vitreous Reflectors Made of Durable Swarovski Special-Purpose Glass

  • Horizontal Road Studs for Permanent Use

  • Horizontal Road Studs for Temporary Use

     

  • Reflectors for Concrete Barriers

  • Vertical Reflectors for Guard Rails

  • Reflectors for Vertical Markings

     

  • Reflective Inserts

  • Custom-made Reflector Solutions

  • Wildlife Warning System to Prevent Accidents on Road Sections with Frequent Wildlife Crossings

OVERVIEW

Principle of Retro-reflection
Principle of Retro-reflection
  • Reflector products from resistant Swarovski special-purpose glass elements
  • High quality, extremely robust and durable
  • Mode of operation: retro-reflection
  • Highly reflective silver mirror layer and additional protective layers
  • Very high resistance to environmental influences such as salt, UV radiation, sulfur dioxide and abrasion
Glass elements tilted at 19°for road marking studs and insert strips for better reflection effect over large distances
Glass elements tilted at 19°for road marking studs and insert strips for better reflection effect over large distances

Comparison Test

Comparison Chart

In various comparative tests of the three reflector types (according to DIN EN 1463): glass reflectors (Type 1), plastic reflectors (type 2) and plastic reflectors with abrasion resistant protective layer (type 3), SWAREFLEX glass reflectors are the only reflector type with consistently good scores across all five test criteria. Each type was tested for its resistance to salt exposure, sulfur dioxide fumigation (Kesternich test), UV light irradiation (Arizona Sun Test), humidity (climate test) and abrasion.

Salt Spary Test1 SO2Test2 UV Test3 Climate Test4 Abrasion Test5
SWAREFLEX Glass Reflectors resistant resistant resistant resistant resistant
Plastic limited limited not resistant not resistant not resistant
Plastic with Abrasion-resistant Protective Coating resistant not resistant not resistant not resistant resistant

Results of pre-post comparison test of three different reflector types concerning reflectivity (R)


1Salt Spray Test (according to DIN EN ISO 9227:2006-10): Corrosion Test Chamber WEISS-KWT 450 -- 1000 hrs, 5°C -- Salt Spraying: 5% standard salt solution, cleaned with water

2Kesternich test (according to DIN EN ISO 6988): Corrosion Test Chamber WEISS-KWT 450 -- 1 cycle = 8 hrs: 0,067 vol% -- SO2 / 40°C 16 hrs: Change to standard air-conditioning -- 42 test cycles, cleaned with water

3UV-test (according to DIN EN ISO 9022-9): Solar simulation chamber CPS+ (Atlas) -- Irradiation Intensity of UVA (300-800nm): 51W/m2 or 650W/m2 (total) - absorbed UVA dose: 88MUJ/m2 or 1123MJ/m2 (total) - - ratio: 2160 hrs (3 months) of solar radiation in Arizona (annual average)

4Climate Test: 72 hrs: 92% Humidity/60 °C -- 24 hrs: 80% Humidity/80 °C -- 72 hrs: 92% Humidity/60 °C

5Abrasion test: specimen fortified on the inner surface of the test vessel -- Abrasion Medium: 1 liter of loose gravel, size 4--8 - 1cycle: 30 RPM (5 hrs), after 2.5 hrs change of the rotation direction -- tested for 1 cycle