Weight for weight, calcium chloride absorbs roughly 5 to 8 times more than silica gel. Call or message us on Zalo with your route and we will send a price.
A sea container usually spends weeks in hot, humid regions, then sits at the port for a while longer. If the desiccant was sized too small, the pack can fill up midway and leave the cargo with nothing to absorb moisture for the rest of the trip. Wood, furniture, machinery, electronics and medical equipment are the kinds of cargo that often need careful moisture control. The frustrating part is that the damage shows only when the buyer opens the container, when it is too late to fix.
This desiccant is a mix of CaCl2 and MgCl2 that absorbs 200 to 300% of its weight at 90% humidity, many times more than silica gel or clay. Once it has absorbed, the powder turns to gel, so a glance at the pack tells you it has done its work. The pouch is made to hold the liquid inside, but you should hang it securely where it does not press on the cargo and keep a saturated pack from touching metal. The container hanging type comes with a ready-sewn bag, plus a string or a hook depending on the size, so all you do is hang it in the container.
This is only a starting suggestion, and our staff will confirm the exact size for your cargo.
Calcium chloride powder absorbs far more water than silica gel or clay, so the dose is worked out differently. The table lists the shared specs of the packs we sell.
01
A 50g pack absorbs about 100 to 150g of water. A 1,000g set absorbs about 2,000 to 3,000g, which is 2 to 3 liters. Comparing each end of the range with a 500g silica gel pack (175 to 200g), one 1,000g set equals roughly 10 to 17 silica gel packs, so call it a dozen or more.
02
The product page suggests 4 to 6 packs of 1,000g for a fully loaded 20ft. For a tighter count by empty space, use 1 pack per cubic meter: a 20ft is about 33 m³, and with cargo taking 70% about 10 m³ is left, so up to about 10 packs on trips over 30 days above 80% humidity. The powder turns into gel as it absorbs, so you can see when a pack is full, and a saturated pack should not touch metal goods.
03
The 50g pack suits a 10 to 20 liter box above 80% humidity, replaced after each trip or every 30 days in storage. The 1,000g pack is for containers on trips of 30 to 60 days or long storage. Send us the box volume or container type and our staff will choose for you.
These figures are reference values under test conditions, and our staff will confirm the size and dose against your actual cargo and trip.
Tell us how long your container travels and we will work out the powder packs
Call 0983 929 232 or message us on Zalo with the container type and number of days to get a quote.
You tell us the cargo, the route, and how many containers or cartons you need to cover.
Our staff calls back and works out with you how many hanging packs each trip needs.
We agree on the pack, whether it hangs by hook or string, and your logo if you need it.
We deliver on the schedule we agree, so tell us the container loading date to help us plan.
If you would rather talk face to face, visit our representative office. Call ahead so we can have someone ready for you.
279 Điện Biên Phủ, Gia Định Ward, Ho Chi Minh City
Get directions on Google Maps