https://www.pingancheye.com/semi-trailer/car-carrier/double-deck-automobile-carrier.htmlAll dry van transport vehicles rely on door sealing strips to block external moisture, dust and road debris, fully safeguarding the integrity of goods inside the compartment. Ordinary rubber and ethylene propylene diene monomer (EPDM) are the mainstream materials for these sealing strips. Frequent door opening and closing as well as long-distance bumpy transportation continuously wear down the strips. Coupled with intense outdoor sunlight, drastic temperature fluctuations and rough handling during loading and unloading at construction sites, the strips are prone to cracking, deformation, dirt accumulation and edge peeling, creating tiny gaps along door seams. Once rain, moisture and sand penetrate the compartment, goods will easily get damp, damaged, corroded and deteriorated. This leads to cargo compensation claims and extra operational costs including after-sales service and restocking, greatly squeezing the profit margins of logistics enterprises.
Performing simple and regular maintenance is a core measure to preserve the sealing performance of semi-trailer door gaskets, slow aging and wear, and extend their service life. During routine pre-departure inspections, operators shall promptly remove dust, oil stains, snow and stubborn grime attached to the gaskets, and carefully check for damage such as cracks, peeling and looseness. Regularly applying a thin layer of silicone protective agent can shield the rubber from UV radiation and maintain its flexibility long-term to prevent hardening and cracking. Avoid slamming doors or prying frozen compartment doors during loading and unloading, as such improper operations are the primary cause of gasket failure. Replace worn or damaged gaskets immediately to ensure tight compartment sealing, cut recurring maintenance costs, block moisture and dust from entering the compartment, prevent cargo dampness and contamination during transit, and reduce cargo damage compensation expenses for logistics firms.
