If you are still looking for a consistent source of calcium carbide PM me i can send you a source that does relatively cheap listings of good sized
lumps 3mm to 15mm in size:
1kg - 35.49 CAD
2kg for 40 CAD
I have purchased a 1kg from him before and it arrived relatively quickly and passed through AUS customs without any issues, so Canadian customs should
be a breeze.
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