Dessiccant Usage Inside an Enclosure

Sounds like you will need a bucket full of Silica Gel.

That will get the moisture content down in several hours, it does depend on the size and shape of your enclosure though...

John.

Not sure what you are asking. But the window industry uses desiccant in their insulated glass units. There are several suppliers of desiccants for this application.

Thanks to the replies from John and Ozzb.

Because I tried to avoid my question looks like a advertisement, I did not express my question clearly. My fault! Actually, I got the technology to drive down humidity from 75% to 8%. I would like to ask the opinions from the wise members for the applications.

I will re-post my question. Thanks friends.

This website link might interest you.

http://leak-proof.com/catalog/moisture-absorbing-packets-packets-p-920.html

Hi,

Thanks for your information. It is amazing that "H2O" absorbs 380% of its weight. Do you know how low the humidity it can reach ? My dessiccant can absorbs 100% of its weight only. I think I target to some special application where requires extremely low humidity treatment. On the other hand, my material is renewable. Pls. suggest any suitable aapplication. Thanks.

Nattone:

You might try gun shops (for storage or display cabinets), museums or anyone who stores or displays important documents.

DickL

Hi DickL,

Thanks for your suggestion. I think gun shop may use general electronic controller dehumidifier and museums may apply dehumidifier plus air conditioning in the environment for their collections. Both of them control the humidity in the range around 30-40% to keep gun powder dry for gun shops and prevent bacteria growth for museums'' valuable items. As I remember from what I read before, Silica gel and calcium sulfate can only drive the humidity to around 40%. It is good for most of applications. They are popular in most of industrial and domestic applications because the cost is low. For my desiccant, it can directly dry up the air to 8%, drier than Sahara desert. I am looking the application area below 30% humidity. Of course, engineers should have a number of ways to achieve this level if there are no similar products available. For example, drying up the air to 40% and then increasing ambient temperature can further lower humidity. I just think there should some area need to produce such low humidity environment, e.g. drying IC chips before SMT process.

Nattone

I'd be interested in more details.. ie. how does it compare to other dessicants..

Guest,

There are several desiccants on the market, that are quite effective. These include:

silica gel (SiO2), Drierite (CaSo4) and molecular sieve

I would look up these compounds and compare them to your compound in terms of price. efficiency etc.

All can be regenerated, and most are fairly cheap.

Tad

Hi Guest,

Further to Ted's input, the major advantage is my desiccant can be applied in the same way as silica gel but reach much lower humidity level, 8%. It can be renewable and friendly to the environment and human body.

Nattone

Is it possible the ingredients may be used as agents during sintered metals manufacturing?

Will they burn off or create voids which can be controlled during the furnace faze?

I recall while discussing the methods of binding semiconductor dicing wheels with one of the few persons who can bind industrial diamonds; humidity's important roll.

Maybe you can research the possibility of including the process prior to particle separators and intakes for turbines?

Can you provide a link to your product, so we may see what you are making?

Hi Moto,

1. The desiccant can be burnt off.
2. It is possible to design the low humidity pre-treatment chamber / environment depending on your application.
3. I do not have link at this moment. I can send you more detailed information. Pls. give me your email address or contact me by : soundtone@yahoo.com.hk
Nattone