Retro-Reflective Glass Micro-Spheres

High performance retro-reflective powder designed to reflect light back to its source. 

A range of light-reflecting powders / additives, made using high-index microscopic glass beads, which when hit by a beam of light, reflect the light back at the source to sparkle back like thousands of tiny cats-eyes. This ‘frost-like’ characteristic also makes this product suitable for other more creative artistic uses.

Reflective materials have traditionally been used mainly in products like traffic signs and safety clothing, but as people have become more craft orientated and resourceful, Starglow Reflective Powders are now being used for many new and innovative applications.

Clear Reflective

Pack sizes:  50g (sample)  100g,  250g,  500g, 1Kg 

Ultra Reflective

Pack sizes:  50g (sample)  100g,  250g,  500g, 1Kg 

So what are Reflective Powders?

Starglow Reflective Powders are microscopic glass spheres (beads) which act as tiny parabolic reflectors and reflect light directly back to its source. This effect known as retro-reflection is most commonly used in road safety signs and reflective strips on safety jackets. 

Reflective Powders are heat, solvent and water resistant, which makes them extremely versatile and suitable for use in hundreds of safety, commercial, artistic and craft applications.  Starglow Reflective Powders are safe and non-toxic and will last many years.

Will this powder do what I want?

Its almost impossible to answer this question with absolute certainty as every situation is different from the next and every customer has different expectations and needs.

The only way to know for sure is to try it and see. To this end we do have small sample packets available to buy on this web site.

Please note: Due to the simple nature of this product, it can never equal the performance of manufactured reflective materials, such as those used on safety jackets and metallised multi-layered reflective traffic signs, but its still good, and as close as you can get in a powder form! (particularly Ultra Reflective).

Reflective coatings work best when reflecting from a distance rather than close up. In much the same way as a distant road sign reflects when driving towards it at night.

Under normal light conditions the coating should be clear and unobtrusive, so to see the reflective effect yourself, try holding a torch (flashlight) up at eye-level and point it directly at the painted surface or take a flash-photo and see the reflection in the photo. The end-result will depend on light / flash strength and relative distance etc, but you’ll get the idea.

Reflective Powder at a glance

  • Safe and non-toxic smart powder
  • Suitable for light or dark surfaces
  • Particle sizes: 30-40mic (approx)
  • Specific Gravity: 4.2
  • Refractive Index: 1.93
  • Guaranteed for 10 years

Whilst it is the more reflective of the two, ultra reflective being semi metalised for better performance, will tend to slightly darken a white / light surface making appear light grey.  Use clear reflective where ‘colour neutrality’ is paramount (ie: the background colour should be clearly visible under normal lighting conditions.

Apply a very thin coating of a suitable clear bonding agent eg: resin, adhesive, lacquer etc then dust the powder on the surface.  When dry remove the excess powder.

Do not apply any kind of top coat as this will prevent the powder from working. 

Do not mix into ordinary paints or any other coloured / solid medium.

Do not grind or mill the powder as this will damage its structure and prevent it from working.

Reflective powders are very durable and long-lived making them suitable for outdoor as well as indoor use.

Reflective powders are non-soluble in water and solvent mediums. Avoid use with acids and strong alkalines.

Starglow Reflective powders are eco-safe and non-toxic.

We are so convinced our powders are the best reflective powders you can buy, we guarantee* them for 10 years.

* Guarantee excludes external use and wear and tear. Click icon for details.