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Product Code: 1995
Manufacturer: Rosco
Material: Gel
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Price: $64.75
Your Price: $61.51


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Thermashield 20 x 24" can lessens the adverse effects of heat on performers and products used in commercials. Where MRs or other hot lamps are used, it helps protect plastic color filters as well as other heat sensitive objects. Thermashield is an optical grade polyester film, finished on one side with a proprietary vacuum-deposited multi-layer coating. Set in the beam of a lighting instrument, it will reflect back infra-red energy, effectively reducing the transmitted heat, while transmitting 80% of the visible light.

It is important to allow air space between the Thermashield and the color filter. This will allow much of the otherwise damaging heat energy to dissipate. Its also important to affix Thermashield so that the coated side faces the lamp. Each sheet of Thermashield is clearly marked so that users can easily identify which side of the clear film should be facing the lamp.

If the label becomes detached, or if the sheet is cut so that the label is no longer available, there is an alternative technique. When tested with an ohm meter, only the coated side (the side which must face the lamp) will be conductive.

Thermashield permits the full range of Rosco color filters in fixtures which previously permitted only the use of glass or dichroics for color. The maximum wattage lamps suitable for Thermashield filters are 1000 watt 120 volt or 1250 watt 240 volt Tungsten Halogen lamps. Thermashield will boost the Kelvin temperature of a 3200° source about 300° Kelvin (a mired shift of approximately -10).

  • Proprietary multi-layer coating reflects most of the infrared energy, thereby reducing transmitted heat
  • Allows the use of plastic color filters in fixtures equipped with MRs or other very hot lamps
  • Protects performers and products from heat of stage or quartz television lamps