Glow sticks breaking open – chemical splash risk
- Safety Flash
- Published on 3 December 2018
- Generated on 18 August 2025
- IMCA SF 26/18
- 1 minute read
While activating a ‘glow stick’ the casing snapped releasing the glow dye.
What happened?
Our member noted that a number of sticks from the same batch broke open, releasing the chemical dye contents.
What went wrong? What were the causes?
Probable causes noted:
- Storage – the plastic from which these are made is known to be brittle if exposed to extreme temperatures. This may be a probable cause considering warehousing locations of the item.
- Issues with manufacture – the manufacturer speculated that “during the injection when we make the tube a small piece of dust [may have] prevented the tube from forming properly which can cause this type of phenomenon.”
What actions were taken? What lessons were learned?
- Ensure long-term storage in appropriate air-conditioned environment.
- When opening such light sticks, do so well away from your eyes, and wearing protective gloves.
- Check expiry date and/or authenticity of existing stock of such materials.
Related Safety Flashes
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IMCA SF 21/18
17 September 2018
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