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Silica Gel Packs for Moisture

Started Oct 5, 2018 | Discussions thread
zoeker
zoeker Forum Member • Posts: 56
Re: Silica Gel Packs for Moisture

petrochemist wrote:

YnotMe wrote:

Thank-you. They seem to be sold/advertised in grams, 3, 5, 10. What size would be sufficient if still putting in different pockets throughout my bag?

It depends on where you are, how big the bag/pocket is, how well sealed it is & how often you regenerate.

I think the packs I have hold 25g.

I've always steered clear of making my own packs _ they'd need to have free circulation of air but hold in the silica. Despite it's name Silica gel is a hard grainy material that could scratch lenses. We have a wide variety of mesh sizes at work ranging from about 5mm to fine dust.

I did make my own pack from a piece of strong fabric on the sewing machine of my wife. A strip of velcro to close the bag. It holds a paper-like bag with 60 gram silica gel. It is not real paper and it gets wet while regenerating (at 120 C in the kitchen oven) but does not fall apart. But it feels fragile and when it rips you have the silicagel all over your equipment. So thats why i made a stronger bag.

On the photo you see the silicagel bag at the right and the self made bag at the left. The silica bag only gets out when it is time for regenerating.

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