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Salt spray aging is a severe test indicator for offshore transport packaging paper, marine equipment interleaving paper and coastal industrial protective paper. Distinct from general salt resistance, salt spray aging focuses on the cumulative damage caused by alternating salt fog, humidity and temperature cycles. Continuous salt spray invades paper interior through surface pores; chloride ions trigger fiber hydrolysis and accelerate oxidation aging. After long-term marine transportation, ordinary paper suffers strength decline, surface discoloration, brittle fragmentation and loss of protection function. Many conventional salt-resistant treatments only achieve short-term isolation against static salt solution and fail to resist continuous alternating erosion of salt fog. Once the protective layer is worn, salt ions will quickly penetrate and cause irreversible structural damage. Simple increase of basis weight cannot fundamentally block ion transmission and will raise raw material costs.Shandong Ludao Energy Technology Co., Ltd. launches targeted paper anti-salt spray aging solutions. By constructing dense ion barrier layers on fiber surfaces and adding anti-oxidation components resistant to salt medium, we block chloride ion infiltration and inhibit fiber hydrolytic degradation. The modified paper maintains stable mechanical performance and appearance under long-cycle salt spray alternating environment, avoids premature aging failure, provides reliable protection for goods during ocean transportation, and meets the quality requirements of coastal and offshore logistics packaging.