Polycarbonate Prismatic Light Diffusers
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From £1.15 inc VAT
From £1.15 inc VAT
Bespoke Fabrication
We have the machinery and expertise to manufacture bespoke items in acrylic, polycarbonate and many other plastics, from one-offs to large production runs. Read more about the various services we offer, or complete the form below to request a quote.
CNC Routing
Our advanced Multicam Apex 3R (3 Axis) CNC routers allow us to provide an extensive range of precision CNC routing services. Read more
CNC Laser Cutting
Laser cutting is a fabrication process that uses a thin, intensely focused stream of light to cut through a range of different materials, including plastics and acrylics. Read more
Diamond & Flame polishing
Edge polishing is a fabrication process that polishes the edges of acrylic panels, removes any cutting marks, and achieves a smooth, glossy finish. Read more
Rotary & Laser Engraving
Laser engraving is a fabrication process that uses a laser beam to physically remove the surface of a material to create an indentation that is noticeable to both the eye and touch. Read more
Line Bending
Line bending is a process that’s used to make precise folds in plastic and acrylic components. Our line bending fabrication service allows us to bend plastic and acrylic sheets along a defined ‘line’ – without any need for gluing or joining. Read more
Have bespoke requirements?
Complete this form and we will get back to you with a quote.
Prismatic polycarbonate light diffusing sheet is produced with a textured finish on one side optimised specifically to transmit and diffuse light while reducing glare. For use in lighting applications polycarbonate prismatic sheet is available cut to size.
Key features
- Prismatic textured finish
- Light diffusion
- Excellent light transmission
- Glare reduction
- High impact resistance
- Flame resistant
Typical applications
- Fluorescent light fittings
- Lighting Lenses
- Ceiling lighting tiles
Detailed description
Light diffusion
The textured finish created by differing structures of prisms on the face of the sheet optimises both light transmission and diffusion while controling glare when used with lighting applications.
High impact resistance
Polycarbonate prismatic sheet is very strong with an extremely high resistance to impact. The sheet is suitable for use in lighting applications in areas where strength and safety is required.
Flame resistant
Rated with a UK class 1 fire rating; polycarbonate is flame resistant and suitable for use in public buildings where a high fire rating is specified.
Stock sheet sizes
2500mm x 1250mm
Minimum panel size
50mm x 50mm
Maximum panel size
2500mm x 1250mm
Light transmission
87%
Relative density
1.2 g/cm³
Manufacturers thickness tolerance
+/- 5 % (e.g. 5mm cast sheet could vary from 4.75mm to 5.25mm)
Cutting tolerance
+/- 1mm
Material protection
Protective film on non textured surface
Fire rating
UK Class 1
Service temperature
-50 to +100°c
Vicat softening temperature
150°c
Water absorption
0.15%
Recyclable
Yes
Recycled content
30%
We provide a fast delivery service throughout the UK using recognised Couriers such as Royal Mail, DHL, and Parcel Force.
Delivery prices are calculated based on the length of the longest side of the material ordered i.e. the delivery price of a panel measuring 1500mm x 1000mm would be based on the 1500mm dimension. Only one delivery charge is charged per order regardless of how many items are ordered.
UK Delivery costs
| Longest side | Standard Delivery | Express Delivery | Order value for FREE delivery |
|---|---|---|---|
| Samples (100mm x 100mm) | £2.95 | £9.95 | £250 |
| Less than 500mm | £6.95 | £12.95 | £250 |
| 500mm to 999mm | £9.95 | £19.95 | £250 |
| 1000mm to 1999mm | £14.95 | £24.95 | £250 |
| 2000mm or greater | £19.95 | £29.95 | £250 |
Standard delivery for all accessories is £7.95, or £12.95 for Express delivery.
All prices listed include VAT.
Delivery Times
Our guidelines for delivery times are listed below:
- Standard delivery (3-5 working days)
- Express delivery (2-3 working days)
Express Delivery
If you require faster delivery you may wish to consider choosing our Express Delivery option at the checkout. Express Delivery orders are prioritised over standard orders and delivered using a recognised nationwide courier.
Next Day Delivery
Next Day delivery is not available via our website due to the volume and bespoke nature of orders we receive on a daily basis. However, if you need to place an order and require Next Day delivery please contact us – we will make every effort to meet your requirements and deadlines.
European/EU Delivery
We have temporarily disabled European delivery for orders placed through our website whilst we make changes to ensure that the correct rate of EU VAT is being charged. Our team can however manually process orders so please contact us if you require delivery to the European Union.
Remote Areas
Due to the nature of the ”made to measure” products we supply, we provide delivery prices at a standard rate and reserve the right to cancel an order should it become economically unviable to fulfill the order. In these extremely rare circumstances, the customer will be contacted first to discuss alternative options.
When delivering to some locations we can incur increased Courier delivery costs. Should delivery be required to one of the locations listed below a remote area supplement will be automatically added to the price of delivery during the checkout process.
| Longest side | Remote area supplement |
|---|---|
| Samples (100mm x 100mm) | £0.00 |
| Less than 500mm | £0.00 |
| 500mm to 1499mm | £10.00 |
| 1500mm to 2499mm | £15.00 |
| 2500mm or greater | £20.00 |
All prices listed include VAT.
Examples of delivery locations which may incur a remote area supplement are:
- Channel Islands
- Isle of Man
- Isles of Scilly
- Isle of Wight
- Scottish Islands
- Scottish Highlands
- Remote areas of Scotland
- Northern Ireland
If you require delivery to one of these areas please get in touch to discuss your order.
Third-Party Deliveries
Some products are dispatched directly from the manufacturer and delivered by a third-party courier. If applicable, this is clearly stated on each Product page under the 'Delivery' tab/section.
Can I collect my order from Simply Plastics?
Yes, of course. Orders can be collected from our premises in Colchester, Essex. At the final stage of the checkout process there is a delivery option labelled "Collection/pickup" which is free. Once your order is complete, you will be notified by email along with our address and collection times.
I need my order urgently, can I pay for faster shipping?
Yes. We offer an express delivery service which aims to deliver all orders in 1-3 working days. Orders are delivered by a recognised courier company and may require a signature on delivery.
Do you have a minimum order charge or small order fee?
This is a question we are asked fairly regularly due to the previlance of either a minimum order charge or small order fee within the industry.
At Simply Plastics our approach has always been to treat all orders equally, small or large. We want all customers, new and existing, to be able to place orders with us confident that they are only paying for the products and materials that they require. We therefore do not have a minimum order charge or small order fee.
Rated 5/5 from 16 reviews
Reviewed by Dave Larken on 17 Mar, 2025
Exactly as described.
Reviewed by Anthony on 24 Apr, 2024
An excellent product and top quality at a very good price. The poly carbon light diffusers were used for my marine tank lights, they have taken away the glare and reduced the shimmer in the tank, giving a more natural and pleasant view to it all.
Reviewed by Ewen on 22 May, 2022
Ordered prismatic light diffuser for custom made led lights. Order came extremely well protected and fitted perfectly. Really pleased with finished product. Great value and service. Would use again.
Reviewed by Colin Hawkins on 19 Jan, 2022
Great product as described. Fast delivery and well packaged
Reviewed by Jackie mccabe on 18 Sep, 2021
We used it in our caravan hall to replace light covers which I had broken caravan is Willerby Vouge 18 years old and parts are hard to find this product was perfect thanks
Reviewed by Jackie mccabe on 16 Sep, 2021
We used it in our caravan hall to replace light covers which I had broken caravan is Willerby Vouge 18 years old and parts are hard to find this product was perfect thanks
Reviewed by Steve Bourne on 19 Aug, 2021
Made light boxes The service delivery and packaging was excellent
Reviewed by Liam on 02 Feb, 2021
Light diffuser for motorhome bathroom ceiling. Cut to my measurements was perfect and a great price too! thank you
Reviewed by Laura Laurence on 25 Jul, 2019
Excellent quality, fits in between the lamps and current disfuser perfectly.
Reviewed by John Mather on 22 May, 2019
I bought these to replace two light diffusers in the kitchen, which were chipped and cracked. These replacements are made of thicker material and seem to be a lot sturdier and also are a better fit.
