UV-Filter-Foils and UV-Filter-Sleeves
UV radiation from the sun or electric lights can damage light sensitive compounds present in many products. In order to avoid material fading and deterioration, it is very important to filter out the ultraviolet light from all light sources in the work environment. ASMETEC offers a complete range of UV filter sleeves and UV-filter foils from visual clear to amber coloured, UV filtering capabilities from 400 nm up to 625nm.
Damaging, stray UV is a significant problem in
work places such as UV-curing areas (coating of printed circuit boards,
UV-curing resins) but also museums, libraries, archives, labs or hospitals but
also in offices or stores.
UV-Filter foils are used to block windows and glasses against
UV-radiation to ensure UV-free illumination of rooms.
The foils are fixed to the window panes either using our UV-resistant glass clear tape film (ASMETEC SKF-19) or fixed between the panes.
METOLIGHT UV-Filter Foils
The filter foils are available in these types:
METOLIGHT SFG-10 (gold, 520 nm), METOLIGHT LY-5 (light yellow, 420 nm), METOLIGHT C-10 (clear, 400 nm)
While the gold and light yellow foils mainly are used in so called "Yellow Rooms" in electronic manufacturing / PCB - areas or in resin curing manufacturing the glass clear version SFC-10 (or double layered as SFC-20) is mainly used in areas where a visual change of colour to the human eye is not wanted, e.g. in museums.
The glass clear foil can be used as double layer to increase UV-blocking mainly in the 400 nm range (C-20).
The direct comparison of both filter curves using SFC-10 and SFC-20 (double layer) shows a reduction of UV-transmission from 8% (SFC-10) down to 3% (SFC-20)
Please ask for more technical information if needed.
The filter sleeves are available in diameter T5, T9 and T 12 in all lengths of common fluorescent lamps. The polycarbonate tubes contain a uv-blocking foil inlet (see above) and are used to turn common fluorescent lamps into uv-safe lamps by blocking all UV-radiation.
In place of the common but expensive yellow fluorescent lamps you now can use cheap regular white lamps, slide over the filter sleeves and have a uv-safe illumination of your rooms. In addition the filter sleeves provide a burst protection in case a lamp should burst.
The filter sleeves in most cases offer a payback after the first change of yellow lamps because the regular white lamps are much cheaper than the special yellow lamps
For use in museums, show cases, display cabinets etc we recommend to use the clear version ASR-C-10 or UV-400 because there is no change of colours to the human eye. For the use in laser drilling areas, plotter rooms, dark rooms there are special sleeves in various shades of red and green available, perfectly fitting to the films or inks you are using.
Download Datasheet METOLIGHT UV-Filters
Wherever a protection of fluorescent lamps is needed without the need of UV-blocking we offer same sleeves but without UV-filters built in. These sleeves then do protect the fluorescent lamps rthat are in reach of hands in case of bursting,.
Download Datasheet METOLIGHT UV-400
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Drilling materials, drilling entry boards, drilling back-up boards, melamine, phenolic, laminates, micro entry boards, aluminium heat sink, drills, routers, routing, protection films, diazo film, plotter film, mylar foils, uv-filter sleeves, uv-filter foils, uv-lamps, FR4 laminates, clean room items, gloves, contact cleaning, tacky pads, sticky pads, adhesive rolls and pads, floor mats, covers, release film, kapton tapes, mylar tapes, press pad, copper thickness teser, drilling spindle repair, collets, CCL, video metrology, usb microscopes, PEAK loupes, lamp magnifiers, foldable loupes, air purifiers, air cleaner, air scrubber, air washer, Airscrub, BGA inspection, endoscope cameras