Putting feet to the fire: A video test of Markforged’s Onyx FR’s flame retardant capabilities.
Time to play with matches! Because of the huge potential of an affordable & Flame-retardant composite plastic that can be 3D printed, we decided to put Markforged’s Onyx FR to the test.
In the video, we hung up two sample prints: One of Markforged’s standard-issue, chopped carbon fiber “Onyx” material (labeled ‘O’), and one of Markforged’s brand-new Onyx FR (labeled ‘F’).
After taking a blowtorch to the original Onyx Material for nearly 10 seconds, we saw it catch fire and start dripping melted plastic before the 10 seconds was even over! Putting the FR material in the blowtorch’s “hot-seat” for over 10 seconds barely affected it! As soon as we pulled the blowtorch away, the flame flickered out – not even a second later!
Below, you’ll find a short video showing the aftermath:
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