Inorganic Coating Replaces Phosphates in Pretreating Metal

Bulk Chemicals’ Zirca-Sil is a homogeneous inorganic coating designed to replace traditional iron and zinc phosphates as a metal pretreatment.

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Bulk Chemicals’ Zirca-Sil is a homogeneous inorganic coating designed to replace traditional iron and zinc phosphates as a metal pretreatment. The coating forms a thin layer of a nano/metallic matrix as a protective film on metal surfaces. Performance is equal to traditional phosphates, the company says.