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    PyraLed® YT575 PS mat satijn 1,5mm
    Professionally fabricating of sheet material

    Looking for a professional partner for mechanical and manual fabrications? We can fabricate all our materials for business clients.

    Mail to: sales@pyrasied.nl
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    Pyraled® YT575 matte/matte 1.5mm LT=71%

    The PyraLed® YT575 diffuser from polystyrene is a rigid and sharply priced diffuser with a high light transmission and diffusivity16,18 per m² ex VAT
    Maximum size

    2600 x 1220mm

    • Low budget
    • Very impact resistant
    • Food grade certified
    • Light transmission: 71%
    • UGR: 20.4
    • Diffusivity: 0.68
    • Efficiency: 48
    Decrease (m2)
    Price per piece: €0,-
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    • Product details

    • Characteristics

    • Technical specifications

    The PyraLed® YT575 matte/matte 1.5mm is an efficient diffuser from polystyrene. This competitively priced diffuser combines a high light transmission with a high level of diffusivity. Diffusers from polystyrene are rigid and barely have any thickness tolerance. They are not UV-proof and can only be used inside.

    The PyraLed® YT575 matte/matte 1.5mm has a two-sided matte surface, is 1.5mm thick and has a light transmission of 71%. The light transmission refers to the amount of light that comes through the diffuser. It is measured on the other side of the light diffuser than where the light source is positioned. The diffusivity, a score that refers to how well the light is scattered, is 0.68. That gives the PyraLed® YT575 1.5mm a distance factor of 1.5. This means that the distance between the diffuser and the leds needs to be 1.5 times larger than the distance between the led strips or led button cells themselves to get a nice and diffuse light result. You need to have plenty of space available to get a diffuse, even light result.

    Standard Diffuser

    The PyraLed® YT575 diffusers are part of our collection with standard diffusers. These diffusers are the classic, 30% light transmission (opal) sheets and fit well with classic light sources and situations with plenty of space between diffuser and light source. They are good diffusers in relationship to their price. Do you need a diffuser that is more efficient and keeps more of the light, please check our professional and advanced light diffusers.

    These professional and advanced diffusers are more efficient than the standard (opal) sheets. Efficiency refers to how well a diffuser performs. It is a measurement that combines the light transmission and the diffusivity. An efficient diffuser costs more to purchase, but earns itself back by saving energy and increasing the light output.

    Material characteristics

    The PyraLed® YT575 is made from polystyrene. A light diffuser from polystyrene is a low budget solution, often used for light tiles in system ceilings and ceiling lighting fixtures.

    Polystyrene light diffusers are rigid and have a minimum amount of thickness tolerance. For a low pricec, they offer a good balance between diffusivity and light transmission. The sheets are not UV proof, so they can not be used outside. The fire classification is E according to European norm EN13501. We do not advice the use of polystyrene in public spaces and escape routes. Polystyrene drips in the case of fire.

    Stock of the PyraLed® YT575 matte/matte 1.5mm

    The PyraLed® YT575 in 1.5mm thickness is in stock in sheet size 2600mm x 1220mm. If you need a smaller size for your application, we gladly offer material cut to size.

    Applications for the PyraLed® YT575 matte/matte 1.5mm

    The PyraLed® YT575 matte/matte 1.5mm is a well balanced diffuser from polystyrene.  The sheet combines a good level of light transmission and decent diffusivity. This is a sharply priced diffuser for the use in light fixtures and light tiles in suspended ceilings.

    Polystyrene is not UV proof. This sheet cannot be used outside. If you are looking for a thin diffuser that can be used outside and has similar light characteristics as the PyraLed® YT575? Then the PyraLed® YT275 is an excellent alternative. This diffuser is made from extruded acrylic and can be used inside and outside.

    For constructive applications like floors, walls and full bars and desks, we recommend a thicker diffuser, like our PyraLed®3 10mm or the PyraLed® OPY3 satin/satin 10mm. These diffusers are made from cast acrylic. Diffusers with these thicknesses are not available in PETG.

    Looking for inspiration? Please check our Acrylic community. You can find many applications with light diffusers. There are also many other applications with acrylic on the platform.

    Fabricating the PyraLed® YT575 matte/matte 1.5mm

    The PyraLed® YT575 matte/matte 1.5mm is made from polystyrene. Diffusers from polystyrene can be fabricated easily.

    PyraSied has more than 30 years of experience in fabricating polystyrene and other plastics. With our excellently equipped workshop – where high-tech machinery and traditional craftsmanship ensure high quality – we can supply diffusers made to size. Whether you are looking for a partner for a one-time project or a trustworthy partner for the continious supply of diffusers as part of your supply chain, PyraSied is the right choice.

    You can fabricate polystyrene yourself, often with the same tools used for wood fabricating. Fabrication options for the PyraLed® YT575 matte/matte diffuser are sawing, milling, bonding, drilling, faceting, polishing, sanding and printing.

    Do you want to know more about fabrications and what PyraSied could do for you? Please go to our fabrications page.


    Light diffusers



    Thickness in mm:


    Light transmission:



    two-sided matte

    Maximal sheet size:



    < 2mm

    Technical specifications
    Coefficient of expansion:
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    Mandatory VAT-number

    Dear customer,

    From 1 July 2021, new VAT rules will apply to Dutch businesses. Due to this new legislation, we have decided to only deliver to foreign customers with a VAT number. It is therefore not possible as a private customer to order in our webshop without a VAT number. We will of course be happy to refer you to a reseller.

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