UV-Protection Yellow Foil Y520
PRODUCT INFORMATION
"UV-Protection Yellow Foil Y520"
Lithoprotect® UV-Protection Yellow Foil Y520
GENERAL INFORMATION
The UV-protective yellow foil Y520 was specially developed for UV-photo-sensitive applications and blocks radiation below 520 nm wavelength. The UV-protective film Y520 consists of yellow-dyed cellulose triacetate. The UV-blocking filter Y520 is widely used in the photolithography, the PCB and microelectronics manufacturing, printing plates and photoresist. Even in the pharmaceutical research, development and production our films are in use.
MAIN FEATURES
- Blocks wavelengths below 520 nm
- Outstanding optical purity
- High adhesion
- Long-term UV-stable
- High inherent scratch resistivity
- Also available as self-adhesive foil
TECHNICAL DATA
- Thickness: 117 µm
- Width: 1,15 m
- Density: 152,1 g/m²
- Tensile strength: > 120 MPa
- Melting range: 235 °C - 270 °CC
CHEMICAL CHARACTERISTICS
The yellow film Y520 is waterproof and resistant to oils, greases, fuels and aliphatic hydrocarbons. The yellow film is dissolved or swollen by chlorinated hydrocarbons, ketones, aromatic solvents. This may affect the optical properties. The UV protective film is not resistant to concentrated acids and alkalis. In these compounds, the foil is attacked.
TRANSMISSION
The optical transmission properties of the UV-protection foil yellow Y520 were specially designed for the high quality standards in the field of yellow rooms (photolithography in microelectronics manufacturing). According to the semi-logarithmic graph shown below, the transmission at 450 nm is about 0.0001 %, which means that it has decayed to a millionth of a part at this wavelength. If you compare our foil with other foils, be sure to ask for a semi-logarithmic plot of the transmission since these differences cannot be seen in a linear plot.
Semi-Logarithmic Transmission
Linear Transmission
The transmission spectrum is not to be understood as a specification, but as an exemplary measurement on a Lot.
FIRE BEHAVIOR
The UV-protective yellow foil Y520 is self-extinguishing.
WATER ABSORPATION
As the UV-protective yellow foil Y520 is made from the natural product cellulose, it has a certain ability to absorb water which can affect dimensional accuracy. However, this water uptake was reduced to a low level. The Y520 has an average water vapor permeability, which allows a rapid drying of the mounting fluid after foil installation.
STORAGE
Under proper storage conditions of 5 - 25 °C and a relative humidity of 30 - 60%, the UV-protective film Y520 has a shelf life of up to one year. To avoid pressure points, we recommend a standing or hanging storage.
PROCESSING
The UV-protective foil Y520 can be processed comparable to paper. You can use UV-stable double-sided adhesive tape stuck to windows, privacy screens, room dividers, lamps and front openings (available from us). However, for large window applications we recommend the use of our self-adhesive UV-protection yellow foil YSA520. To filter fluorescent tubes we offer special polycarbonate tubes, in which our UV-blocking filter is incorporated (yellow light).
FURTHER INFORMATION
Technical Datasheet:
Technical Data UV-Protection Yellow Foil Y520 english
Technisches Datenblatt UV-Schutz Gelbfolie Y520 deutsch
NOTE: All data and information relate to the best of our knowledge and are based on measurement and experience. It remains in your responsibility to check the suitability of our yellow foil for the intended use of it. Our products are regularly quality-tested and further developed. We therefore reserve the right to adjust without additional information, the chemical composition or physical characteristics of new knowledge.