One useful interaction of uv and plastics is with fluorescent whitening agents fwa.
Plastic material sheet transmit uva light.
This isn t the only way that acrylic plastic is durable.
Although standard plexiglass transmits uv rays it doesn t have the extra protection this specialized plastic provides.
Light transmission of plastic this document lists both visible and uv light transmission characteristics.
Acrylic plastic can sustain high levels of uv light extreme cold and even saltwater without its structural integrity being compromised.
92 uv transmission can withstand continuous heavy duty use.
Applications that commonly see problems with traditional acrylic sheeting include display cases museum lighting animal habitats tanning beds and more.
Plastic sheeting with unique uv characteristics is often used where uv rays are an issue whether it is uv filtering or transmitting.
Fortunately polyplastics and topas advanced polymers provide a line of glass clear medical grade plastics with high uv transmissionso that tests utilizing uva uvb and with the right grade even uvc down to 220nm can be carried out with confidence.
In natural light many polymer products can appear to have a yellow appearance.
Most acrylic plastics will allow light of wavelength greater than 375 nm to pass through the material but they will not allow uv c wavelengths 100 290 nm to pass through.
Uv transmitting acrylic sheet is made to be strong and resist degradation that commonly comes with continuous long term exposure to uv rays.
Uv light transmission is based on the nm range of uv light transmitted.
Although standard plexiglass transmits uv rays it doesn t have the extra protection this specialized plastic provides.
If a project is to run smoothly it s essential that a uv resistant plastic is used if of course said plastic will be exposed to uv light.
It refers to the amount of light a material allows through it.
No other plastic material can deliver this level of uv transparencyperformance.
If this is not the case engineers can afford to be less choosy providing the plastic they choose is suitable for its unique application.
But by adding a fwa the uv light absorbed is then emitted in the blue region of visible light 400 500nm wavelength instead of the yellow region.