Since 1998 · Made in Johannesburg (Newlands) · SA‑wide courier delivery · POs accepted for corporate buyers
Installed for South African retail, pharmacy and corporate clients — from small sites to multi‑store roll‑outs.








Examples of our acrylic light-diffuser work: precision-cut opal panels for retail ceiling grids and troffers • circular and curved diffusers for feature lighting • hanging pendant diffusers for hospitality • diffused LED lightbox plinths • linear slot diffusers for corporate receptions • branded backlit panels for exhibition stands.
📍 Newlands, Johannesburg · 🚚 SA‑wide delivery · 📞 011 477 2186 · ✉ website@moriahplastics.co.za · 🏆 Since 1998
Home › Portfolios › Lighting Diffusers
On this page: Gallery • What Are Diffusers? • Applications • Specs & Options • How It Works • FAQs • Why Us • Get a Quote
Acrylic lighting diffusers are panels fitted over LED, fluorescent, or recessed fixtures to soften and evenly distribute light. They reduce harsh glare, hide LED modules and fittings, and protect the light source from dust and damage. Opal white acrylic delivers maximum diffusion with a clean opaque finish; frosted acrylic offers a semi‑transparent satin look for decorative settings. Both are precision‑cut to your exact L × W × thickness (mm) in our Johannesburg workshop.
Feature
Opal White
Frosted Acrylic
Diffusion
Maximum — even, glare-free light
Medium-high — soft, satin glow
Appearance
Opaque, clean white finish
Semi-transparent satin look
Light transmission
Lower — more diffusion
Higher — more light passes through
Best for
Office troffers, ceiling grids & lightboxes
Feature panels, niches & decorative backlighting
Typical thickness
2–4 mm
2–4 mm
Property
Specification
Material options
Opal white & frosted acrylic · Perspex® / PLEXIGLAS® grades on request
Standard sheet size
Up to 2050 × 3050 mm — cut to your exact dimensions
Thickness
2–4 mm typical; other thicknesses quoted on request
Cutting tolerance
±0.5 mm on length and width
Edge & corner options
Clean cut, polished edges, radii, clip slots & cut-outs
Light diffusion
Opal = maximum diffusion; Frosted = medium-high diffusion
UV stability
UV-stable, resists indoor yellowing; UV-stabilised grades available
Fire performance
Standard acrylic is combustible; fire-rated grades sourced on request
Packaging
Protective film, edge-protected, packed flat in sturdy cardboard or plywood crates
Lead time
7–10 business days from spec confirmation (rush available on request)
Need a faster response? WhatsApp Your RFQ with drawings or photos for a same‑day reply.
Yes — send length, width and thickness in millimetres (L × W × T), plus quantity. We precision-cut to ±0.5 mm to fit standard LED troffers, ceiling grids and custom fixtures.
Yes — we cut to your exact L × W dimensions and can accommodate corner radii, clip slots and cut-outs to match your housing. Send a photo or drawing and we'll match it precisely.
Opal white gives maximum diffusion with a clean opaque finish — best for office troffers and lightboxes. Frosted is semi-transparent with a satin appearance, ideal for feature panels where some light transmission is wanted.
Most ceiling and troffer applications use 2 mm, 3 mm or 4 mm. We'll confirm the best option when you share your fixture details. Heavier or custom thicknesses can be quoted on request.
General-purpose acrylic is UV-stable and resists yellowing indoors. For outdoor or high-UV exposure we can supply UV-stabilised grades — specify your environment when requesting a quote.
Standard acrylic is combustible. If your project requires a specific fire classification, advise us and we will source an appropriate grade. Always confirm requirements with your project fire engineer.
No minimum — we make single replacement panels and large bulk orders alike. Trade and bulk rollouts receive priority scheduling and competitive pricing.
Standard turnaround is 7–10 business days from spec confirmation. Rush orders can be arranged — let us know your deadline when you send your brief.
Yes — we batch-cut orders from the same material lot and keep your spec on file. Repeat orders are produced to the same dimensions, thickness and finish, ensuring consistency across all sites.
Each panel is interleaved with protective film, edge-protected and packed flat in sturdy cardboard or plywood crates. We courier nationwide from Johannesburg. Delivery cost is quoted upfront with your invoice.
Diffusers are primarily designed for indoor use. Covered-outdoor applications (under a patio or canopy) are possible with UV-stable grades and proper enclosure. Discuss your project with our team.
26+ Years in Johannesburg
Custom acrylic fabrication from our Newlands workshop since 1998. We know how acrylic behaves under LED and fluorescent fittings — and we cut to ±0.5 mm every time.
B‑BBEE Level Four
100% procurement recognition — simplify your compliance paperwork. POs accepted, invoicing available, and repeat orders kept on file for future rollouts.
SA‑wide Courier Delivery
Manufactured in Johannesburg, packed flat with edge protection and protective film, and couriered anywhere in South Africa. Collect from Newlands also welcome.
On‑site Fabrication + Repeat Orders
All cutting and finishing done in Newlands, Johannesburg. We keep your spec on file — repeat orders and spares for existing installations are produced to the same dimensions and material grade.
Browse our full range of custom acrylic products for retail, commercial, and architectural fit‑outs.
Send us your details, panel sizes, and site environment. We'll respond within 1–3 working days (business days). Larger or complex projects may require more time.
We typically reply within 1–3 working days (business days). Larger or complex projects may require more time.
Prefer WhatsApp? WhatsApp Your RFQ with drawings or photos for a fast response.