Canoptek Alloy vs Bitz O'Tin

How close are they?

ΔE 8.5, close: similar, with a visible difference side by side. Bitz O'Tin is warmer than Canoptek Alloy.

Can I use Bitz O'Tin instead of Canoptek Alloy?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Bitz O'Tin is warmer than Canoptek Alloy.

Can I use Canoptek Alloy instead of Bitz O'Tin?

The same difference applies the other way round: Canoptek Alloy is cooler.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.