Moisture damage


For many years, thousands of containerized cargoes are damaged by moisture problems. When the containers arrive in the destination, metal is found to be rusty or oxidated, cartons become soft and moldy, bulk coffee, cocoa, beans maybe damp, musty…,such loss sometimes costs several million dollars. It is caused by two main reasons: Cargo Sweat and Container Rain.

Container moisture solution

Topsorb focus on the supply of desiccant products and moisture-proof packaging system solutions and professional services, protect your valuable goods from humidity damage. For containerized cargo damp problems, we provide a solution, series container desiccants, Topsorb which create a dry environment in the container. It can effectively adsorb humidity, and control “dew point” temperature below the actual temperature, and thus prevent mildew, rust formation.

Dry Guard -1500g, 1000g, 500g

*Dry Guard Plus has double “breathing area”, which makes adsorption faster, more effective in the same space and period;
*Dry bag in small thickness, laminated non-woven, with hook, can be hung on the hoop;
*Reduce relative humidity, Control “dew point”, protect the cargo during the whole ocean voyage.


Absorption Capacity

Dry Guard series absorb over 300% in full performance at 90%RH.
It provides perfect solution to prevent the goods in containers from moisture damage.

Super Adsorption Capacity

Adsorption Chart
absorb over 300% in full performance

Solid gel & Anti-leakage

moisture protection
After adsorption

Topsorb VS Other CaCl2 powder desiccant

Topsorb desiccant after adsorption
Topsorb developed unique formula of absorbents, which is quite different from the other desiccant suppliers, not matter in physical appearance, or in adsorption performance.

First, it has stronger adsorption capacity over 250%~300%.

Second, fantastically, in the whole process of absorbing,the absorbent remains in solid form , no single minute turn into liquid form, from the beginning, to the full working conditions, until being saturated,

It entirely prevents the risk of liquid leakage.
CaCl2 Powder desiccant after adsorption
Most desiccant products on the current market, the CaCl2 powders inside sachets turns into entire liquid when the adsorption reaches 60%~80%. This state of being liquid lasts several days or even longer (depending on the temperature & humidity conditions) , then it slowly turns into gel.

It is a high-risk period when the absorbent remains in liquid. When the desiccant sachets are squeezed or pressed during transport or operation, the joint of sealing part has a risk to be cracked and damaged. As a result, the leakage occurs from the inside liquid,and then the customers’ goods is polluted by the leakage.

Show Pictures

Specification Sheet

Specification Pack Size
Net Weight
Packing Qty(pcs/ctn)
Dry Guard Plus-1500 350*600 1500 4
Dry Guard Plus-1000 350*450 1000 6
Dry Guard Bag-500 250*330 500 20

Comparison Pictures

container desiccant moisture protection

Before using Dry Guard After using Dry Guard

Usage instruction

Dry Dragon container desiccant

1. Check whether the conatiner is damaged,whether there is a hole or crack on the container wall,the top and bottom.Container doors can be closed tightly and the seal must be good.The container must be dry and clean before loading.

2. Inspeciton of container wood floor.if possible,do not use containers with wood floor humidity over 20%,it would increase the risk of damp.

3. Seal all air-wents on the container wall.Very important!
Desiccant plays an effective role only in a closed enviroment.If the container door is not shut tightly, or there is damage on the container or the air-vents inside are not sealed,desiccant will never be able to absorp up the mositure that continually enteres from outside.

4. Hang Dry Guard and recommended dosage:Open the package and hang dry guard 1000 up to the iron hoop on the container wall,as shown in the picture,Use 6kg per 20’ container,12kg per 40’ container.For professional advice of desiccant dosage,please contact Topsorb.


Specification:1500g &1000g & 500g
Carton Size: 370X275X220mm ;
Package:1pcs/1 PE bag,
              1 big PE bag/carton;
Shelf life:24 months
Gross Weight:7kg;
Ctn Qty per pallet: 12ctns/layerX9 layer=108ctns

Package Picture

Loading Drawing


Documents Download

Talk to us:

Mr.Tiger Zhang
International Sales Manager
Skype: tiger_topsorb
Wechat: 13764317483