> Things to note: Small amount of powder, small amount of glue, let it set and LET IT COOL, then add a small mount of baking soda, small amount of glue.
This is a highly exothermic reaction. In large quantities it can get hot enough to melt or possibly ignite the material being repaired.
The reaction between the bicarbonate (baking soda) and the cyanoacrylate (superglue) forms polymers, or chains of atoms, which is why the resulting solid is stronger than just superglue alone.
These polymers can become brittle below freezing temperatures. Keep that in mind if your repair will be exposed to …