performance testing

Performance test (1)

Performance test (2)

Performance test (3)

Performance test (4)

Scanning electron microscopy under alkaline pretreatment process

performance

Alkaline degreasing pretreatment + chromium-free passivation performance can fully meet the national standard GB 5237.4-2017 and the European QUALICOAT standard:

The dry and wet adhesion reaches level 0, the impact resistance and cupping resistance meet the requirements specified in GB/T 8013.3, the salt spray corrosion resistance (AASS, NSS, CASS) has no foaming on the surface, and the unilateral penetration corrosion width does not exceed 1.0mm.

Other industries: high pressure cooking resistance (roller coating), high temperature sterilization, sulfur resistance, acid resistance (food packaging, cans, aluminum alloy coated plates and strips for lids and pull rings, 121C, 30min)