That’s because his chart uses liquid AFR and does not calculate powder (even though later in that article there is a picture of powder being mixed up).
He has it at $37/L when the powder is $7/L to make using the powder.
I have recalculated this in several threads for several “claims” that I was unfair to AFR.
I use powder AFR. I have nothing against it . But it is not correct to claim all two parts cost more.
Once more into the breach…
1600 g AFR powder costs $75 at
BRS and makes 10 L.
Tropic Marin Balling three part bundle at
BRS costs
A $15.81 for 1 kg, makes 13 L
B $12.71 for 1 kg, makes 13 L
C $18.33 for 1 kg, makes 42 L
To make 10 L it costs:
12.16 + 9.77 + 4.36 =$26.29
Since the two part is weaker, we need to scale it up by the potency ratio, 2.14.
Thus 10 L equivalent potency of the TM two part costs 26.29 x 2.14 = $56.26
Thus, the premium two part from TM is CHEAPER.
If you want to roll in the cost of extra trace elements using TM A and K, that will push up this two part above AFR, but the
BRS hybrid is significantly less.