Moisture resistance is a critical property of industrial packaging board, directly influencing its performance and suitability for various applications. As a supplier of industrial packaging board, understanding and emphasizing this key characteristic is essential for meeting the diverse needs of our customers. Industrial Packaging Board

The Importance of Moisture Resistance in Industrial Packaging Board
In the industrial packaging realm, products are often exposed to a range of environmental conditions during storage, transportation, and handling. Moisture, whether in the form of humidity, rain, or condensation, can pose significant challenges to the integrity of the packaging and the products it protects. A high level of moisture resistance in industrial packaging board is crucial for several reasons.
Firstly, moisture can weaken the packaging board, reducing its structural strength. Corrugated cardboard, a common type of industrial packaging board, is made up of multiple layers of paperboard. When exposed to moisture, the fibers in the paperboard can absorb water, causing them to swell and lose their stiffness. This can lead to the collapse of the packaging, especially under the pressure of stacking or handling. For example, in a warehouse with high humidity, poorly moisture – resistant packaging may sag or even fall apart, compromising the products inside.
Secondly, moisture can cause damage to the products themselves. Many industrial products are sensitive to moisture. Electronics, for instance, can suffer from corrosion if the packaging is not able to keep out moisture. Food products can spoil or develop mold, and chemicals can react with water, altering their properties. By using industrial packaging board with good moisture resistance, we can provide a reliable barrier between the products and the external environment, ensuring their quality and safety.
Another important aspect is the impact on hygiene. Moist packaging provides a breeding ground for bacteria, fungi, and other microorganisms. This is a particular concern in industries such as food and pharmaceuticals, where strict hygiene standards must be maintained. Moisture – resistant packaging helps to prevent the growth of these unwanted organisms, thus protecting both the products and the end – users.
Factors Affecting the Moisture Resistance of Industrial Packaging Board
Several factors contribute to the moisture resistance of industrial packaging board. The first and most fundamental factor is the raw material used. The type and quality of paperboard play a significant role. For example, kraft paper, which is made from virgin wood pulp, generally has better natural moisture – resistant properties compared to paperboard made from recycled fibers. Virgin kraft pulp has long, strong fibers that can form a more compact and less porous structure, reducing the penetration of moisture.
The manufacturing process also has a major impact on moisture resistance. The way the paperboard is formed, dried, and treated during production can enhance or diminish its ability to resist moisture. For instance, the application of coatings on the paperboard surface is a common method to improve moisture resistance. There are different types of coatings available, such as wax coatings, polyethylene coatings, and inorganic coatings. Wax coatings are widely used because they provide a good physical barrier against moisture. They can be applied through various processes, such as hot – melt coating or emulsified wax coating. Polyethylene coatings, on the other hand, offer excellent moisture – vapor barrier properties and are often used in high – end packaging applications.
The thickness and density of the packaging board are also important factors. Thicker and denser boards generally have better moisture resistance because there is more material to act as a barrier. However, increasing the thickness and density also increases the cost and weight of the packaging, so a balance needs to be struck based on the specific requirements of the application.
Measuring the Moisture Resistance of Industrial Packaging Board
To ensure that our industrial packaging board meets the required standards of moisture resistance, we use several testing methods. One of the most common methods is the Cobb test, which measures the amount of water absorbed by the paperboard in a specified time period. In the Cobb test, a circular sample of the paperboard is placed in a test apparatus and exposed to water for a set time, usually 60 or 180 seconds. The increase in weight of the sample after the test is then measured, and the result is expressed in grams per square meter (g/m²). A lower Cobb value indicates better moisture resistance.
Another important test is the moisture – vapor transmission rate (MVTR) test. This test measures the rate at which water vapor passes through the packaging board. The MVTR is typically measured in grams per square meter per day (g/m²/day). A low MVTR value means that the packaging board is more effective at preventing the passage of water vapor, which is crucial for protecting products from moisture – related damage over time.
Applications and Customer Benefits
Our industrial packaging board with high moisture resistance has a wide range of applications across different industries. In the food industry, it is used for packaging dry foods such as cereals, snacks, and pet food. The moisture – resistant packaging helps to keep these products fresh and crisp by preventing the ingress of moisture and the growth of mold. In the pharmaceutical industry, our packaging board provides a reliable barrier for protecting tablets, capsules, and other medications from moisture, which can affect their stability and efficacy.
For the electronics industry, our moisture – resistant packaging is essential for safeguarding sensitive components during shipping and storage. Moisture can cause corrosion and short – circuits in electronic devices, and our high – quality packaging board helps to prevent such issues. In the automotive industry, it is used for packaging parts and components, protecting them from moisture and other environmental factors during transit.
By choosing our industrial packaging board, customers can enjoy several benefits. Firstly, they can have peace of mind knowing that their products are well – protected from moisture – related damage. This reduces the risk of product returns and customer complaints, saving both time and money. Secondly, our packaging board is designed to be cost – effective. We believe that high – quality moisture – resistant packaging does not have to be expensive, and we strive to offer competitive prices without compromising on quality. Thirdly, we can provide customized solutions to meet the specific needs of each customer. Whether it is a particular level of moisture resistance, a specific size or shape of the packaging, or a unique design requirement, our team of experts can work with customers to develop the ideal packaging solution.
Contact Us for Procurement

As a leading supplier of industrial packaging board, we are committed to providing the highest quality products with excellent moisture – resistant properties. Our extensive experience in the industry and our state – of – the – art manufacturing facilities enable us to meet the demands of customers around the world.
Glassine Paper If you are in need of industrial packaging board for your business, we invite you to contact us to discuss your procurement requirements. Our sales team is ready to answer any questions you may have and provide you with detailed product information and pricing. We look forward to the opportunity to work with you and to provide you with the best packaging solutions for your products.
References
- "Handbook of Paper and Paperboard Packaging Technology" by Arthur L. Brody and Kenneth S. Marsh
- "Packaging Materials and Processes" edited by Ryan K. McGinity and Malcolm M. Beck
- ASTM International standards for paper and paperboard testing, including ASTM D 4442 for Cobb test and ASTM F 1249 for MVTR test.
Oriental Paper (HK) Limited
Oriental Paper (HK) Limited is one of the most professional industrial board manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale cheap industrial board from our factory.
Address: Room 3A07, Dexin AI Industrial Park, No.3 Weiye Road, Binjiang District Hangzhou China
E-mail: shirley@oriental-paper.com
WebSite: https://www.oriental-paper.com/