Why do I need Purmol powder in my metallic-rich paint?

Why do I need Purmol powder in my metallic-rich paint?

Water reacts with active metallic pigments such as zinc or aluminum,forming hydrogen that leads toan overpressure in the cans

Zn + 2H2O → Zn(OH)2 + H2

2Al + 6H2O → 2Al(OH)3 + 3H2

Our molecular sieves may be added at any time during the blending of the primer by rapid stirring in conjunction with the addition of the zinc dust. Zeochem recommends the addition of 1% – 3% Purmol powder.

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