We subject gel polish to 4hr 85℃ baking + 12hr -40℃ freezing cycles, ensuring peel strength ≥18N/25mm (3× national standards). It maintains stable performance without fading, brittling or peeling even in extreme scenarios such as arctic logistics, tropical outdoors and long-term storage. This test comprehensively verifies product weather resistance and structural stability, providing cross-scenario reliable protection for your custom gel polish. Whether for cross-border e-commerce long-distance transportation or daily storage in offline salons, it can always maintain excellent quality for your customers' peace of mind.