Exposure Rack Manufacturer,Supplier and Exporter in India
Product Code : EL-FTE-13165
Quick Answer: The Exposure Rack holds coated fabric and other test pieces in daylight, with dyed wool reference samples, in an open-bottomed wooden box with an acrylic-sheet lid set at 45° to the horizontal, so that colour change and light fastness can be rated.
Last updated: October 2026
Key Features
- Open-bottomed wooden box fitted on a stand
- Case kept in the open at 45° inclination to the horizontal
- Removable wooden frame carrying a wire screen
- Removable wooden rack supports the test pieces and wool reference samples
- Hinged lid made of an aluminium angle frame with a fixed acrylic sheet
- For coated fabric, PVC sheeting and cable insulation and sheath that change colour in daylight
Technical Specifications
| Specification | Value |
|---|---|
| Box | Open-bottomed wooden box |
| Inner frame | Removable wooden frame carrying a wire screen |
| Specimen rack | Removable wooden rack for test pieces and wool reference samples |
| Lid | Hinged, aluminium angle frame with acrylic sheet |
| Mounting | On a stand, at 45° inclination to the horizontal |
About This Product
Many coloured materials change colour when left in daylight, because daylight acts on the pigments in them. In a light fastness test, test pieces are exposed to daylight beside dyed wool reference samples. The time of exposure and the intensity of daylight decide how far the colour changes. The test piece is rated by the number of the reference sample that has changed colour to the same extent, which gives a numerical light fastness rating. The exposure rack holds the pieces at a fixed angle under a clear lid. Alongside supply within India, the Exposure Rack is offered for export to Brazil, Angola, Jordan, Jamaica, Tunisia and Mali.
Frequently Asked Questions
Q1. What does the Exposure Rack do?
It holds test pieces and wool reference samples in daylight, so that the change in colour of the test specimen can be compared with the references.
Q2. How is light fastness rated?
The colourfastness is denoted by the number of the dyed wool reference that has changed colour to the same extent as the test specimen, expressed as a numerical rating for light fastness.
Q3. How is the Exposure Rack built?
It is an open-bottomed wooden box with a removable wooden frame carrying a wire screen, a removable wooden rack for supporting test pieces, and a hinged lid made of an aluminium angle frame with an acrylic sheet. The box is fitted on a stand at 45° to the horizontal.
Related: Fabric Testing Equipment, Colour Matching Cabinet, Perspirometer, Launderometer, Coating Adhesion Tester.
For a quotation on the Exposure Rack, contact School Lab Equipment India.