---
product_id: 83935133
title: "5mm Gloss Opal Acrylic Sheet A3 420 x 297 - Persepx Light Box LED Diffuser Plastic"
brand: "crestglass"
price: "R1225"
currency: ZAR
in_stock: true
reviews_count: 4
category: "Crest Glass"
url: https://www.desertcart.co.za/products/83935133-5mm-gloss-opal-acrylic-sheet-a3-420-x-297-persepx
store_origin: ZA
region: South Africa
---

# Opal finish for perfect LED diffusion Precise 420x297mm A3 size 5mm thick, shatter-resistant 5mm Gloss Opal Acrylic Sheet A3 420 x 297 - Persepx Light Box LED Diffuser Plastic

**Brand:** crestglass
**Price:** R1225
**Availability:** ✅ In Stock

## Summary

> ✨ Elevate your visuals with CrestGlass—where clarity meets durability!

## Quick Answers

- **What is this?** 5mm Gloss Opal Acrylic Sheet A3 420 x 297 - Persepx Light Box LED Diffuser Plastic by crestglass
- **How much does it cost?** R1225 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/83935133-5mm-gloss-opal-acrylic-sheet-a3-420-x-297-persepx)

## Best For

- crestglass enthusiasts

## Why This Product

- Trusted crestglass brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Featherweight handling:** Half the weight of glass means effortless installation and reduced strain during projects.
- • **Crystal-clear durability:** 5mm thick acrylic offers superior impact resistance over glass—built to last and safer to handle.
- • **Flawless light diffusion:** Opal finish ensures even, glare-free illumination—ideal for LED light boxes and signage that stands out.
- • **Versatile pro-grade sheet:** From digital prints to splashbacks, this hygienic, abrasion-resistant acrylic adapts to all your creative and professional needs.
- • **Weatherproof & chemical resistant:** Guaranteed 10 years against discoloration and weathering—perfect for long-term indoor and outdoor use.

## Overview

The CrestGlass 5mm Gloss Opal Acrylic Sheet (A3, 420x297mm) is a premium, impact-resistant acrylic panel designed for professional-grade light diffusion and signage. Featuring a durable opal finish, it offers superior resistance to weathering, chemicals, and abrasion, while being lightweight and easy to handle. Ideal for LED light boxes, displays, and hygienic cladding, this sheet guarantees 10 years of performance and clarity.

## Description

Great prices on your favourite Home brands, and free delivery on eligible orders.

Review: Good produc t- shame about the delivery - Item was fine - exactly what I needed. However there was a problem with the delivery - the driver delivered it to the wrong address. Fortunately the depot is very close to where I work so I was able to collect it.
Review: Works well to diffuse light for flat fielding telescope images - Bought to build panel to flat field a telescope, worked well

## Features

- (NOTE, IMAGE IS NOT OF ACTUAL SIZE) Size: 420mm x 297mm / A3 size (for custom sizes, please contact us for a quote). Thickness: 5mm. Finish: Opal
- Also known as Perspex, Plexiglas, Repsol Acrylic. Manufactured to high tolerance excellent constant sheet thickness. Greater impact resistance than glass – non shatter.
- Hygienic – easy to clean and abrasion resistant. High resistance to discolouration and weathering (10 year guarantee). Good resistance to most common chemicals.
- Easy handling – half the weight of glass. Supplied with protective PE film on both sides.
- Applications: Digital Print, Sign making, Coasters, Displays, Exhibitions, Glazing, In-store fabrication, In-store fitting, Light boxes, Point of purchase/sale signs, Illuminated signs, Permanent signs, Temporary sound barriers, Visors, Splash backs, Engineering Plastics, Construction, DIY Plastics, Hygienic and decorative cladding, Educational plastics, Model making, Jewellery, Arts & craft

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00WWPX1BQ |
| Best Sellers Rank | 84,782 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 621 in Plastic Sheets |
| Brand | CrestGlass |
| Colour | White |
| Customer Reviews | 4.5 4.5 out of 5 stars (33) |
| Date First Available | 30 April 2015 |
| Item Weight | 700 g |
| Material | Acrylic |
| Model Number | 5OPALGLOSSACR |
| Product Dimensions | 10 x 10 x 0.03 cm; 700 g |

## Product Details

- **Finish type:** Polished
- **Item weight:** 0.7 Kilograms
- **Lamp type:** LED
- **Shade material:** Acrylic
- **Switch type:** Push Button

## Images

![5mm Gloss Opal Acrylic Sheet A3 420 x 297 - Persepx Light Box LED Diffuser Plastic - Image 1](https://m.media-amazon.com/images/I/21FK25ANEuL.jpg)

## Questions & Answers

**Q: Hi could you tell if the edges are polished or smooth please?**
A: Hi

Thank you for you enquiry.

As standard, it is a standard clean saw cut edge. 

We can cut this material to any shape, size you require as well as polish, pre-drill holes and round the corners if required. Please contact us on 0203 667 7067 or info@crestarltd.com with your requirements so we can quote and assist. 

Many thanks

Kind Regards

Sign Materials Direct
0203 667 7067
info@crestarltd.com

**Q: Do you supply a piece 775mm x 300mm in 5mm frosted please it’s for a shelf**
A: Hi,

Thank you for your enquiry.

I can confirm we can cut this material to any shape, size you require as well as polish, pre-drill holes and round the corners if required. Please contact us with your requirements so we can quote and assist. 

Many thanks

Kind Regards

Sign Materials Direct

**Q: Can you cut this like normal acrylic?**
A: Yes the perspex will cut easily with any fine metal saw blade.

**Q: Can i order 550x550 mm and sheet thickness: 5mm? i would like to do a light box with the lack side table (ikea)**
A: Dear Miguel,Thank you for your inquiry.Yes, we can supply this material in any sheet size or shape you require. Please contact us on 0203 667 7067 info@crestarltd.com with your requirements so we can assist.Kind RegardsSign Materials Direct0203 667 7067

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good produc t- shame about the delivery
*by A***S on 19 December 2016*

Item was fine - exactly what I needed. However there was a problem with the delivery - the driver delivered it to the wrong address. Fortunately the depot is very close to where I work so I was able to collect it.

### ⭐⭐⭐⭐⭐ Works well to diffuse light for flat fielding telescope images
*by N***L on 4 November 2020*

Bought to build panel to flat field a telescope, worked well

### ⭐⭐⭐⭐⭐ lightbox
*by V***S on 25 July 2019*

Used this item for a A4 size daylight LED Lightbox. Works like a charm.

## Frequently Bought Together

- 5mm Gloss Opal Acrylic Sheet A3 420 x 297 - Persepx Light Box LED Diffuser Plastic
- Pixly® Crystal Clear Acrylic Perspex Plastic Sheet | Transparent | A5 A4 A3 | 2mm/3mm/5mm Thickness - Multipurpose Crafting, DIY and More (Thickness: 5mm, A3-297mm x 420mm)
- 3mm CrestGlass Black Gloss Acrylic Plastic Sheet 16 Sizes to Choose (148mm x 105mm / A6)

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**Shop now:** [https://www.desertcart.co.za/products/83935133-5mm-gloss-opal-acrylic-sheet-a3-420-x-297-persepx](https://www.desertcart.co.za/products/83935133-5mm-gloss-opal-acrylic-sheet-a3-420-x-297-persepx)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-15*