Hazchem Novelty Coasters

While hard at work at my day job--developing safety and compliance training--I couldn't help but notice how striking the Australian Hazchem warning system is. It's bright colours, uniform shapes and sizes, and delightful messages really lend it to being slapped on a coaster 10mmx10mmx4mm. Surprise and alarm your loved ones with each sip.

Included are four coasters: Class 2 Toxic Gas, Class 4 Spontaneously Combustible Solids, Class 6 Infectious Substances, and Class 7 Radioactive Materials. There are obviously way more ways a material can harm you and lots more signs in the Hazchem system, but I wanted a variety of what I find to be the most fun warnings without using more than four colours. If the spirit moves me I may make some more, which I will add as additional print profiles.

I used a variety of PLA filaments but if you're starting from scratch, Bambu PLA Basic will get you there. Look for “true” reds and yellows for the most accurate results. Colour is only included on the top layer to limit filament purge cycles. Majority of the coaster is white to compliment the sign colour scheme and also make the top colours pop. PLA is only suitable for cold drinks. Use PETG or another heat-resistant filament if you want to rest your coffee or tea on this. You may also want to add little squares of adhesive foam tape on the back if you wanted to use these on slippery surfaces.

These started life in the MakerLab Image to Keychain maker, so thanks to Bambu for making that tool available. 

It goes without saying but DO NOT use these for actually labelling hazardous substances. SafeWork Australia has a code of practice on the correct use of the Hazchem system. These coasters are novelty items that don't meet parameters required of actual safety signage.