When choosing reflective tape, the two most common constructions are prismatic reflective tape and glass bead reflective tape. Both work by reflecting light back towards its source, but the way they do it, and what that means for brightness and surface type, is genuinely different.
This guide covers the difference between the two and where each works best.
What Is Glass Bead Reflective Tape?
Glass bead reflective tape uses thousands of tiny glass beads embedded in the tape's surface. Light entering each bead refracts and reflects back towards its source, which is what makes the tape glow under headlights or a torch.
It's generally more flexible than prismatic tape, which makes it easier to apply around slight curves. Available in yellow, red, silver and blue, it's commonly used for posts, signs, bikes, bins, equipment and general marking.
- Flexible construction, suits slightly curved or uneven surfaces
- Available in yellow, red, silver and blue
- Typically the lower-cost option of the two constructions
- Suitable for posts, signs, bikes, bins, equipment and general marking
Shop Glass Bead Reflective Tape
What Is Prismatic Reflective Tape?
Prismatic reflective tape uses a surface of tiny microprisms rather than beads, which reflects light more efficiently and gives a brighter, sharper return, particularly under direct vehicle headlights.
Ours is an acrylic construction, supplied in five widths (25mm, 50mm, 100mm, 150mm and 200mm) and cut lengths from 1 to 45 metres.
- Brighter, sharper reflection than glass bead under direct light
- Best suited to smooth, rigid surfaces rather than curves
- Widths from 25mm to 200mm, lengths from 1m to 45m
Shop Prismatic Reflective Tape
Why Acrylic Construction Matters
Prismatic reflective tape is built on one of two base films: acrylic or PET. Ours is acrylic. That's a genuine material distinction: acrylic (PMMA) holds up to sustained UV and weathering better than PET film over time, which is why premium reflective sheeting from established manufacturers is typically built on acrylic or polycarbonate lenses rather than PET.
Glass Bead vs Prismatic Comparison
| Feature | Glass Bead | Prismatic |
|---|---|---|
| Reflective mechanism | Tiny glass beads | Microprism surface |
| Brightness | Good general reflection | Brighter, sharper return under direct light |
| Flexibility | More flexible, suits slight curves | Best on smooth, rigid, flat surfaces |
| Colours available | Yellow, red, silver, blue | See product page for current range |
| Typical cost | Lower | Higher |
Which Should You Choose?
Choose glass bead for general, non-regulated marking on posts, signs, bikes, bins, barriers and equipment, especially if the surface has any curve to it.
Choose prismatic where brightness matters more than flexibility and the surface is smooth and rigid, bollards, gates, driveways, flat signage.
Neither construction is the right choice for a vehicle conspicuity application, clothing, or marine safety, those have their own certified products, covered below.
Important Notes on Certification
Not all reflective tape is suitable for regulated use. General prismatic and glass bead tapes work well for visibility marking, but shouldn't substitute for a certified product where a specific standard applies.
- For HGV and trailer conspicuity, use ECE104 reflective tape.
- For marine safety, use SOLAS reflective tape.
- For clothing or textile projects, use sew-on or iron-on reflective fabric tape, not standard self-adhesive tape.
Shop Reflective Tape
Shop All Reflective Tape | Shop Prismatic Reflective Tape | Shop Glass Bead Reflective Tape
FAQs
Is prismatic reflective tape better than glass bead?
Brighter under direct light, yes, but glass bead is more flexible and generally lower cost. The better choice depends on the surface and how much brightness the application actually needs.
What is prismatic tape made from?
Ours is acrylic (PMMA), rather than PET, which holds up better to long-term UV and weathering exposure.
Is glass bead reflective tape suitable for vehicles?
For general visibility marking, it can be. For regulated HGV, trailer or commercial vehicle use, you need a certified product such as ECE104 tape instead.
Which is best for curved surfaces?
Glass bead. It's the more flexible of the two constructions and handles slight curves better than prismatic.
Can I use standard reflective tape on clothing?
No. Use sew-on or iron-on reflective fabric tape for garments, bags and textile projects instead.