What are Britwrap container desiccant?

Excess moisture inside the containers causes a series of negative effects on the finished product, such as mold, oxidation, and rust, causing economic damage to the company.

Merchandise shipped and stored for long periods is thus preserved from possible damage with container desiccant, which reduces humidity inside the packaging. Britwrap offers many solutions to its customers, satisfying all kinds of needs with a wide selection of raw materials and types of casing.

Characteristics of container desiccant

Companies use desiccant sacks, also in the form of strings, to absorb moisture created due to temperature changes during transporting or storing goods. The high-quality product proposed by Britwrap must be placed in the packaging or the container to counteract humidity, steam condensation, and mold that form with temperature changes between day and night and affect the merchandise.

Depending on the type of use, specific products (such as silica gel bags) must be placed in the packaging or inside the container in specific amounts. There are also many raw materials used for making bags, although silica gel is the most common and is used for its great moisture-wicking properties.

What is silica gel, and what is it for?

Silica gel, or silica gel, is a desiccant used to preserve and protect technological and manufacturing products sensitive to atmospheric agents and contained in packaging from moisture. In addition to industrial use, silica gel bags are also suitable for home use.

You can also place the silica gel near books, documents you want to keep, or house parts like damp cellars. With their absorbent power, the bags prevent the deterioration of the paper and the walls. In addition, silica sachets make the silver shine.

These little bags are part of all sectors, and we find them in most of our purchases since, in all commercial areas, they are used to protect products from humidity: Fashion, electronics, the pharmaceutical, and food sectors are some of the sectors in which the container desiccant produced and marketed by Britwrap are most used.

Its presence significantly reduces the possibility of mold forming or moisture spoiling the goods during transport, especially if they last days and require displacements of thousands of kilometers.

Container dehydrators and hygroscopic chains | Britwrap

In an increasingly globalized market, some 20 million containers reach the sea every day, and the goods transported are exposed to the risk of damage caused by condensation and excess humidity inside.

The hygroscopic bags and chains proposed by Britwrap under the trade name of SILDRY allow the products to be protected from humidity during the transport and storage phases.


The bag contains a mixture of calcium chloride (CAS no. 10043-52-4) and a natural gelling agent.

The shell is made of breathable non-woven fabric with PE/PET fibers, capable of retaining absorbed moisture in a gelled form.

Sildry’s advantages for companies

SILDRY has the task of neutralizing the formation of condensation in closed environments and packaging, keeping the product’s characteristics unaltered, and guaranteeing high-quality merchandise.

The natural humidity in the container runs the risk of damaging the product during transport and storage and, added to that of the cargo, creates a tropical microclimate that causes water vapor to penetrate the packages, damaging the merchandise.

The result is the creation of condensation, which, continuously forming and drying, first moistens and then stains the goods, damaging them several times and often irreparably.

For this reason, the container desiccant and containers proposed by Britwrap become the essential instrument for preserving the quality of the products, eliminating this problem and drastically reducing the internal percentage to the point that condensation is avoided.

Why use Britwrap hygroscopic chains

Hygroscopic salts are dehydrating salts that absorb moisture from the air within their porous structure. Thanks to the specific action of calcium chloride, SILDRY is particularly active when relative humidity exceeds 40%, Protecting goods even for a long time during transportation.

Humidity is more than the amount of water in the air surrounding us. Depending on the container’s size, the loaded material’s residence time, and the type of material, the bags’ needs can be calculated.

Container desiccant can be placed in the container in several ways: individual bags should be spread on both the floor and ceiling of the boxes (space permitting) or if the type of load allows, one Valid placement is the hygroscopic chains of 6 bags, such as those proposed by Britwrap, which can be hung crosswise on the upper part of the hooks on the side walls of the containers.

This special format allows dehydrating chains to be directly applied to the packaging.

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