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[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|desktop” _builder_version=”4.27.4″ background_color=”RGBA(255,255,255,0)” width=”100%” max_width=”100%” custom_margin_tablet=”” custom_margin_phone=”0px||0px||false|false” custom_margin_last_edited=”on|phone” custom_padding=”||||false|false” custom_padding_tablet=”||||false|false” custom_padding_phone=”0px||0px||false|false” global_colors_info=”{}”][et_pb_row column_structure=”3_5,2_5″ _builder_version=”4.27.4″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” max_width=”1270px” custom_padding=”||0px|||” global_colors_info=”{}”][et_pb_column type=”3_5″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/sercalia.com\/wp-content\/uploads\/2026\/03\/humedad-en-contenedores_sercalia.jpg” alt=”Absorbent materials for shipping containers_sercalia” title_text=”humidity-in-containers_sercalia” url=”https:\/\/sercalia.com\/desecantes-refrigeracion-automocion\/” align=”center” align_tablet=”center” align_phone=”center” align_last_edited=”on|desktop” disabled_on=”off|off|on” _builder_version=”4.27.4″ width=”73%” max_width=”73%” custom_margin=”10px||20px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.27.4″ header_font=”|600||on|||||” header_font_size=”16px” header_line_height=”3em” header_2_font=”||||||||” header_3_text_color=”#007FE0″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” custom_margin=”||40px||false|false” global_colors_info=”{}”]<\/p>\n
Maritime transport accounts for more than 80% of global trade<\/b>, and most of these goods are shipped in containers. However, one of the most common problems affecting these shipments is moisture in shipping containers<\/b>, a phenomenon that can lead to product deterioration, damage to packaging and significant financial losses.<\/p>\n
During a journey that can last several weeks, the container passes through different climate zones, temperature variations and changes in humidity<\/b>, which can lead to internal condensation<\/b>, known in logistics as container rain<\/b> or container sweat<\/b>.<\/p>\n
This phenomenon particularly affects sensitive products such as food, pharmaceuticals, machinery, steel, textiles or electronics, where even small variations in humidity can cause quality or safety issues.<\/p>\n
Understanding the causes of moisture in containers and implementing appropriate control strategies<\/b> is essential for protecting goods during international transport.<\/p>\nWhat is condensation in shipping containers<\/h2>\n
Condensation in containers occurs when the water vapour present in the air inside reaches the dew point<\/b>, turning into water droplets.<\/p>\n
This phenomenon usually occurs when:<\/p>\n
When this happens, the water vapour condenses into droplets on the ceiling and walls of the container. These droplets can then fall onto the cargo, causing the phenomenon known as \u201ccontainer rain\u201d<\/b>.<\/p>\nWhy does moisture occur in shipping containers?<\/h2>\n
The formation of condensation in shipping containers is the result of several combined factors.<\/p>\n
Metal containers can experience extreme temperature fluctuations<\/b> during a sea voyage.<\/p>\n
These changes cause repeated cycles of evaporation and condensation, which progressively increase the humidity inside the container.<\/p>\n
Many transported products contain natural moisture<\/b> that is released during the journey. Among the materials that release the most moisture are wood, cardboard, paper, textiles and agricultural products.<\/p>\n
For example, wooden pallets can contain between 8% and 18% moisture<\/b>, which evaporates slowly during transport.<\/p>\nHygroscopic packaging materials<\/h3>\n
Packaging materials can also act as moisture reservoirs<\/b>.<\/p>\n
Some materials, such as corrugated cardboard, paper, textile sacks and wooden pallets, can absorb moisture prior to loading and subsequently release it inside the container.<\/p>\n
Standard shipping containers have very limited ventilation. This means that the water vapour generated inside the container remains trapped throughout the journey<\/b>, particularly on long-haul routes.<\/p>\nConsequences of moisture in maritime transport<\/h2>\n
Condensation can cause a range of problems for the goods being transported.<\/p>\n
Metal parts and industrial machinery are particularly sensitive to moisture.<\/p>\n
Relatively low levels of relative humidity can cause: surface rust, corrosion and deterioration of components.<\/p>\n
Relative humidity above 60\u201370%<\/b> promotes the growth of mould and fungi, which can render the goods completely unusable.<\/p>\n
This can particularly affect textiles, wood, food and paper.<\/p>\n
Moisture can also cause cardboard boxes to warp, lose structural strength and collapse.<\/p>\n
In sensitive products such as food or medicines, moisture can directly affect product stability, both in terms of food safety and pharmaceutical quality. For this reason, effective humidity control throughout the supply chain is essential.<\/p>\n
The problem of condensation in containers particularly affects sectors that transport moisture-sensitive goods.<\/p>\n
Among the most affected sectors are: food exports, the pharmaceutical industry, electronics, industrial machinery, steel, metallurgy and textiles.<\/p>\n
On long sea routes, particularly in intercontinental transport, the risk of condensation increases significantly.<\/p>\n
To reduce the risk of condensation in containers<\/b>, logistics companies apply various environmental control strategies aimed at keeping relative humidity under control throughout the entire sea journey.<\/p>\nUse of desiccants for shipping containers<\/h2>\n
One of the most effective solutions for moisture control in maritime transport<\/b> is the use of industrial container desiccants<\/b>.<\/p>\n
Among these solutions, Propadry moisture absorbers for containers<\/b><\/a> stand out; a system designed to absorb moisture during international transport<\/b> and protect goods from the effects of condensation.<\/p>\n Propadry desiccants use anhydrous calcium chloride<\/b>, a highly hygroscopic material capable of capturing large amounts of water vapour present in the air. By absorbing moisture, the relative humidity inside the container<\/b> is reduced, minimising the formation of condensation.<\/p>\n To maximise their effectiveness, moisture absorbents for shipping containers<\/b> are strategically positioned within the cargo unit. The most common configurations are:<\/p>\n This combination of solutions helps maintain a controlled microclimate inside the container<\/b>.<\/p>\n Before loading a container, it is essential to check that:<\/p>\n More and more companies are using sensors and data loggers<\/b> to monitor environmental conditions during transport.<\/p>\n These devices record temperature, relative humidity and fluctuations during transit. They facilitate the detection of problems and improve logistics management.<\/p>\n In an increasingly demanding global trade environment, humidity control in containers has become a key factor in protecting product quality during transport.<\/p>\n The implementation of solutions such as Propadry or Container Dry, alongside good loading practices and environmental monitoring<\/b>, significantly reduces the risks associated with condensation.<\/p>\n As supply chains become more complex and shipments travel ever-greater distances, humidity management is establishing itself as an essential factor in ensuring the safety and stability of goods in maritime transport<\/b>.<\/p>\n [\/et_pb_text][\/et_pb_column][et_pb_column type=”2_5″ _builder_version=”4.27.4″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/sercalia.com\/wp-content\/uploads\/2026\/03\/humedad-en-contenedores_sercalia.jpg” alt=”Absorbent materials for shipping containers_sercalia” title_text=”humidity-in-containers_sercalia” url=”https:\/\/sercalia.com\/desecantes-refrigeracion-automocion\/” align=”center” align_tablet=”center” align_phone=”center” align_last_edited=”on|desktop” disabled_on=”on|on|off” _builder_version=”4.27.4″ width=”73%” max_width=”73%” custom_margin=”10px||20px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/sercalia.com\/wp-content\/uploads\/2023\/10\/buyonline_conservatis.webp” alt=”conservatis, achetez en ligne” title_text=”buy_online_conservatis” url=”https:\/\/conservatis.com\/en\/shipping-containers\/moisture-desiccant-for-marine-containers-propadry” url_new_window=”on” align=”center” align_tablet=”center” align_phone=”center” align_last_edited=”on|desktop” disabled_on=”off|off|off” _builder_version=”4.27.4″ width=”81%” max_width=”78%” custom_margin=”10px||20px||false|false” locked=”off” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/sercalia.com\/wp-content\/uploads\/2023\/10\/budget_sercalia.jpg” alt=”Solicite su presupuesto en Sercalia” title_text=”sercalia_solicite_presupuesto” url=”https:\/\/sercalia.com\/contacto\/” align=”center” align_tablet=”center” align_phone=”center” align_last_edited=”on|desktop” disabled_on=”on|on|off” _builder_version=”4.27.4″ _module_preset=”default” width=”81%” max_width=”78%” custom_margin=”10px||20px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_image src=”https:\/\/sercalia.com\/wp-content\/uploads\/2026\/03\/absorbente-de-humedad-maritimo_sercalia.jpg” alt=”absorbents for maritime transport_sercalia” title_text=”maritime-moisture-absorbent_sercalia” align=”center” align_tablet=”center” align_phone=”center” align_last_edited=”on|desktop” disabled_on=”on|on|off” _builder_version=”4.27.4″ width=”73%” max_width=”73%” custom_margin=”10px||20px||false|false” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.24.0″ _module_preset=”default” background_color=”#858786″ custom_padding=”30px||0px||false|false” global_module=”56900″ saved_tabs=”all” locked=”off” global_colors_info=”{}”][et_pb_row column_structure=”2_3,1_3″ _builder_version=”4.21.0″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” max_width=”100%” module_alignment=”center” custom_margin=”|||0px|false|false” global_colors_info=”{}”][et_pb_column type=”2_3″ _builder_version=”4.21.0″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code admin_label=”ancora” _builder_version=”4.25.2″ _module_preset=”default” global_colors_info=”{}”]<\/a><\/a>[\/et_pb_code][et_pb_blurb title=”Ask for a quote now” content_max_width=”100%” disabled_on=”on|off|off” admin_label=”Blurb” _builder_version=”4.24.0″ header_text_color=”#FFFFFF” header_font_size=”25px” header_line_height=”1.1em” body_font=”Raleway||||||||” body_text_color=”#FFFFFF” body_font_size=”22px” body_line_height=”1.8em” background_size=”initial” background_position=”top_left” background_repeat=”repeat” custom_margin=”||6px||false|false” custom_margin_tablet=”|||170px|false|false” custom_margin_phone=”|||0px|false|false” custom_margin_last_edited=”on|phone” global_colors_info=”{}”]<\/p>\n Request informations about our products.<\/p>\n [\/et_pb_blurb][et_pb_code disabled_on=”on|on|off” _builder_version=”4.24.0″ _module_preset=”default” custom_margin=”||50px|||” global_colors_info=”{}”]How to position desiccants inside the container<\/h2>\n
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Proper preparation of the cargo<\/h3>\n
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Temperature and humidity monitoring<\/h3>\n
The importance of humidity control in international trade<\/h2>\n