What makes Calcium Sulfonate Coatings so Corrosion Resistant?
The calcium sulfonate resin and calcium carbonate platelets in ARMOR-SHIELD products are alkaline in nature with an average pH of about 10. This pH range is too basic for active corrosion (rust) to form and creates a passivating layer on metal surfaces. This alkaline or basic surface tends to neutralize any acids that penetrate the coating. This makes them well suited to prevent corrosion caused by today’s acid rains. Calcium sulfonate resins and calcium carbonate platelets form a hydrophobic hydrocarbon chain structure that is positively charged and has a strong affinity for the negatively charged metal surface. This provides excellent adhesion to metal surfaces while preventing water from reaching the metal and thus denies one of the necessary ingredients for corrosion.
