
Sheathed PMMA Fiber
Universal Fiber Optics manufactures high quality multi-stranded sheathed fiber on reels. These typically consist of 0.75mm PMMA fibers in multiples to create a fiber of larger active diameter.
These can be used for many lighting applications and we supply many manufacturers of fiber optic lighting with standard and custom fiber configurations.
The sheathing material is low smoke. Pricing is dependant on shipping quantity - please contact us for details.
Multi-stranded sheathed PMMA fiber specification
Core Material: Polymethyl Methacrylate
Cladding Material: Fluorinated polymer
Outer Sheathing: TP519, thermoplastic low-smoke, halogen-free, flame retardent compound with low toxic fume emission
TP519 Toxicity Index NES 713: 1.3
TP519 Halogen Acid Gas Evolution BS EN 50267-2-1: <0.5%
TP519 Smoke Emission 3m Cube Test BS 7622: Pass
Refractive Index: 1.49
Refractive Index Profile: Step Index
Numerical Aperture: 0.5
Operation Temperature Range: -55°C to +70°C in low humidity; <60°C at 95% RH (attenuation change is within 10% after 1000 hours except for that due to absorbed water). Please note that fiber can become brittle at lower temperatures.
| Part No. | No. of Strands | Strand Diameter | Approx. Active Diameter | Approx. Outer Diameter | Min. Bend Radius | Reel Length |
|---|---|---|---|---|---|---|
| 4EG75 | 4 | 0.03in (0.75mm) | 0.07in (1.90mm) | 0.12in (3.00mm) | 0.8in (20mm) | 1640’5" (500m) |
| 7EG75 | 7 | 0.03in (0.75mm) | 0.1in (2.30mm) | 0.18in (4.50mm) | 1in (25mm) | 1640’5" (500m) |
| 12EG75 | 12 | 0.03in (0.75mm) | 0.12in (3.10mm) | 0.18in (4.50mm) | 1in (25mm) | 984’3" (300m) |
| 25EG75 | 25 | 0.03in (0.75mm) | 0.17in (4.30mm) | 0.26in (6.30mm) | 1.2in (30mm) | 984’3" (300m) |
| 33EG75 | 33 | 0.03in (0.75mm) | 0.2in (5.00mm) | 0.3in (7.10mm) | 2in (50mm) | 656’2" (200m) |
| 50EG75 | 50 | 0.03in (0.75mm) | 0.25in (6.00mm) | 0.34in (8.70mm) | 2.4in (60mm) | 492’1.5" (150m) |
| 75EG75 | 75 | 0.03in (0.75mm) | 0.31in (7.30mm) | 0.43in (10.50mm) | 3.1in (80mm) | 328’1" (100m) |
| 88EG75 | 88 | 0.03in (0.75mm) | 0.34in (8.0mm) | 0.43in (10.50mm) | 3.5in (90mm) | 328’1" (100m) |
| 100EG75* | 100 | 0.03in (0.75mm) | 0.34in (8.40mm) | 0.5in (12.00mm) | 4in (100mm) | 328’1" (100m) |
* 100EG75 fiber is to special order and the minimum order is 328’1" (100m). It requires a 1/2" ferrule and does not fit our standard Ezefix M8 and M10 ferrules.
Stranded fiber cables using 1mm and 1.5mm fiber can be made to order as can mixed diameter bundles.
We can supply blank common ends and sized ferrules for installers to cut and fit the fiber on site.
Though making harnesses on site does not produce as good or even a light output as properly factory terminated harnesses, sometimes it can be necessary to terminate the fiber on site and Universal Fiber Optics can supply suitably experienced fitters with the raw materials to do this.
These fibers can also be stripped back at one end to make starry effects through ceilings.
Single core sheathed PMMA fiber specification
We make sheathed single core fiber in 0.75mm, 1mm, 1.5mm and 2mm active diameters.
Core Material: Polymethyl Methacrylate
Cladding Material: Fluorinated polymer
Outer Sheathing: TP519, thermoplastic low-smoke, halogen-free, flame retardent compound with low toxic fume emission
TP519 Toxicity Index NES 713: 1.3
TP519 Halogen Acid Gas Evolution BS EN 50267-2-1: <0.5%
TP519 Smoke Emission 3m Cube Test BS 7622: Pass
Refractive Index: 1.49
Refractive Index Profile: Step Index
Numerical Aperture: 0.5
Operation Temperature Range: -55°C to +70°C in low humidity; <60°C at 95% RH (attenuation change is within 10% after 1000 hours except for that due to absorbed water). Please note that fiber can become brittle at lower temperatures.
| Part No. | Nominal Fiber Diameter | Nominal Outer Diameter | Outer Diameter Tolerance | Reel Length | Approx. Weight* | Min. Bend Radius |
|---|---|---|---|---|---|---|
| CK30S | 0.75mm | 2.00mm | +/-0.3mm | 8858’3.2" (2700m) | 3.9g/m | 0.8in (20mm) |
| CK40S | 1.00mm | 2.20mm | +/-0.3mm | 4921’3.1" (1500m) | 4.9g/m | 1in (25mm) |
| CK60S | 1.50mm | 2.60mm | +/-0.3mm | 2296’7.1" (700m) | 6.6g/m | 1.6in (40mm) |
| CK80S | 2.00mm | 3.10mm | +/-0.4mm | 820’2.5" (250m) | 12.8g/m | 2.4in (60mm) |
* - Excluding packaging
Minimum order length is one reel. For smaller quantities, click here.
Product Data Sheet
Download Product data sheet in PDF format


