Light transmission of 92 %, clearer than glass
Excellent UV stability with no yellowing outdoors
Scratch resistant compared to polycarbonate
Machines, polishes and flame polishes to optical clarity
Available in cast, extruded and coloured sheet
Suitable for light guides and edge-lit displays
| Cast PMMA sheet |
| Extruded acrylic sheet |
| Coloured and tinted PMMA |
| Light guide grade PMMA |
| Impact modified acrylic |
| PMMA rod and tube |
| Specification | Details |
|---|---|
| Light transmission | 92 % |
| Tensile strength | 70 MPa |
| Impact strength | Notched Izod 20 J/m |
| Heat deflection | 95 °C at 1.82 MPa |
| Density | 1.18 g/cm³ |
| Scratch resistance | Good |
Flame polishing to optical clarity
Vapour polishing
Hard coating
Edge lit preparation
PMMA resists scratching better and stays clearer for longer, while PC absorbs impact. For safety critical guards choose PC; for display and lens parts choose PMMA.
By diamond machining followed by flame or vapour polishing, which removes tool marks. For light guides we also polish the edges that couple to the LED.
It can, because it is brittle and sensitive to stress concentrations. We use slow feed rates, generous radii and anneal parts to prevent crazing around holes and slots.
Metals and engineering plastics for CNC machining: aluminium, stainless, steel, titanium, brass, copper and high-performance polymers with grade guidance.
Resins for injection moulding: ABS, PP, PC, PA, POM, PBT, PEEK and glass-filled grades with shrink, temperature and application guidance.
Materials for industrial 3D printing: PA12, PA11, glass-filled nylon, TPU, engineering resins and high-temperature polymers compared by process.
Sheet materials for fabrication: cold rolled and galvanised steel, stainless 304/316, aluminium 5052/6061 and copper, with thickness and finish guidance.
FRP and GRP material options: glass and carbon fibre reinforcements, polyester, vinyl ester and epoxy resins, foam and honeycomb core materials.
Send your files today — DFM-checked quotation within 24 hours.