DualGlo Technology Plc © 2007-2012 All rights reserved

World leaders in coloured photoluminescence

Advantage of DualGlo over other materials

Zinc Sulphide originated in the 1970's and was the first phosphorescent pigment. It has been widely used in glow in the dark items but it is not very bright (strontium aluminate is ten times brighter) and Zinc Sulphide only glows for a short period. Like DualGlo, zinc Sulphide is very safe and is not radio active.

Tritium is usually used within a Gaseous Tritium Light Device (GTLD), which is a glass tube internally coated with phosphor, injected with gaseous tritium, and then sealed in a coating of plastic. GTLDs are manufactured in many sizes and can be made small enough to fit on the hands of a watch. GTLD are very bright, require no light activation and will glow for ten years plus. Their major drawback is that they are radioactive and whilst safe in GLTD form, there are increasing concerns about their disposal and the heightened risks when crushed as waste and exposed to water.

DualGlo White (left) compared with natural strontium aluminate (right). Shot on a white background to  show strontium alluminate’s raw colour.

Day and night colours shown for each.

DualGlo produces a clean daytime white whereas strontium aluminate without the DualGlo effect yields off-white.

Strontium Aluminate is the photoluminescent material that is used in DualGlo. Without the Patented DualGlo technology, it can only be sold in its natural colour, which only offer a dull green daytime colour.

In its natural form, Strontium Aluminate will glow slightly brighter and slightly longer than when processed by DualGlo (to combine bright daylight colours). Whether used in its raw or coloured DualGlo form it will glow for up to 20 hours (depending on the mix and daytime colour).

Strontium Aluminate is very safe and is not radio active.

DualGlo combines the benefits of Strontium Aluminate with strong daytime colours offering twenty four hour visibility and great ascetics.

It is completely safe and is even approved for use in children's toys.

It is highly versatile from a manufacturing standpoint allowing it to be incorporated into existing products and production processes.

Tritium GTLD (left) compared to DualGlo rod (right). Shots circa 15 minutes apart. Tritium will maintain a consistent light output for circa 10 years whilst DualGlo will gradually dim between esposures light.