Can Absorbent Paper and Vci Paper Be Used at the Same Time?

Many people are confused when they first hear this question: "Don't these two have similar functions? Isn't it a waste to use them together?" That's not the case. Although both composite absorbent paper and china vci paper for copper are rust-proof packaging products used in export packaging, they perform different functions. Composite absorbent paper primarily removes moisture, absorbing excess moisture from the packaging to prevent condensation. China VCI paper for copper, on the other hand, releases VCI molecules to form a protective film on the metal surface, preventing rust.

We often recommend that clients use these two materials together in exporting steel, copper strip, and precision parts. Especially during ocean shipping, with its large temperature fluctuations and high humidity, container rain (water droplets forming on the top and inner walls and dripping onto the cargo) is a common occurrence. Using just one material alone may not provide comprehensive protection.

• If china vci paper for copper alone is used, high humidity inside the container may still cause water droplets to form, compromising the protective film.

• If composite absorbent paper alone is used, while moisture is reduced, corrosive substances may still be present in the air, causing the metal to gradually discolor or rust.

• Using both together ensures complete protection against rust and moisture.

Our Rust Prevention Product Strengths:

CVCI was one of the first companies in China to introduce vapor phase corrosion inhibitor technology from the military sector to civilian applications such as metallurgy, machinery, and electronics. We have over 20 years of R&D and production experience. Our china vci paper for copper not only offer long-lasting protection but also do not affect subsequent metal surface processing, are easy to use, and are environmentally friendly. Whether it's steel coils, copper sheets, aluminum profiles, or various precision parts, we have china vci paper for copper with the right specifications and formulations.

Composite absorbent paper is also one of our flagship products. This material not only has high moisture absorption capacity but is also dust-, mildew-, and water-resistant, making it ideal for export packaging. Our production process incorporates a special moisture barrier and encapsulation process, making it particularly suitable for long-distance ocean shipping. It continuously absorbs moisture from the air and maintains a dry packaging environment.

Why choose our products?

We are confident in recommending this combination to our customers because of the CVCI factory's extensive R&D and production capabilities.

• Our own factory: Large-scale and stable production capacity. We produce everything from china vci paper for copper grade, anti-rust film, anti-rust oil, to composite absorbent paper-grade and anti-rust granules in-house, ensuring controlled quality and stable delivery.

• National-level laboratory: Accredited by the China National Accreditation Service for Conformity Assessment (CNAS), our 4,000-square-meter laboratory is equipped with over 100 advanced testing instruments. We can perform salt spray testing, constant temperature and humidity testing, vapor phase corrosion testing, and other testing procedures to ensure that every batch of products can withstand the test of harsh environments.

• Full-process service: CVCI not only sells anti-rust products, but also assists customers with anti-rust solution design, packaging improvements, on-site application guidance, employee training, and even verification of anti-rust effectiveness. In short, if you have an anti-rust need, we can help you from start to finish.

Customer Case Study:

A company that exports copper strips had previously used china vci paper for copper alone for rust prevention, which was effective. However, due to long ocean shipments and humid climates at the destination, they occasionally experienced discoloration and minor rust spots on the metal products. They initially suspected the china vci paper for copper was of poor quality, but testing revealed it was not a problem; it was simply high humidity during transportation, which caused condensation and weakened the effectiveness of the anti-rust paper.

We later recommended that they add a layer of composite absorbent paper to the existing china vci paper for copper, placing it strategically: absorbent paper on the top and sides of the packaging, and the anti-rust paper wrapped around the metal surface. As a result, a batch of goods shipped from China to Southeast Asia took over 40 days, and upon unpacking, the copper strips remained as bright and shiny as new, much to the customer's great satisfaction.

How to use it for best results?

• The anti-rust paper should be placed close to the metal surface, like an invisible protective suit.

• The composite absorbent paper should be placed on the top, sides, or other areas prone to water accumulation, acting like a mini dehumidifier.

• For large shipments, you can also add several sheets of absorbent paper to the bottom to prevent moisture accumulation caused by vibration during transportation.

This combination of methods effectively addresses various threats, including humidity, temperature fluctuations, and corrosive gases, especially for long-distance ocean shipments or exports to high-humidity areas.

Therefore, composite absorbent paper and anti-rust paper can and should be used together, especially when exporting steel, copper strip, precision parts, and other applications requiring extremely high surface quality. It's like an umbrella and raincoat; neither is indispensable. CVCI can customize a complete protection solution specifically for your product, and we have a large inventory, so you don't have to worry about delivery time. If you have the opportunity to visit our factory, we can even conduct a "real-world test" by simulating 40 days of shipping conditions in our laboratory to demonstrate the effectiveness of this combined protection solution!

Welcome to contact us:

WhatsApp: +8618842266752

Email: cvci-gaoxiu@chinavci.com