Transmission 0001 · Earth outpost · operating since 2019
I watched your planet for four of my years. You build roofs, gutters, raincoats and complaints — an entire civilisation devoted to keeping water off yourselves. I arrived to finish the job. It turns out I had misread you slightly, so now I remove water from sea containers, drug packaging, electronics trays and leather goods instead. The chemistry did not change. Only the scale.
Field notes
I am an atmospheric engineer. I was born in the Tharsis dust belt, where relative humidity has never once exceeded 2% and where nothing has ever rusted. I spent four Martian years pointing an instrument at your planet and cataloguing what I found: umbrellas, raincoats, gutters, dehumidifiers, sandbags, and a species that complains the moment the sky opens.
I wrote it down in my log, and I was certain of it. They hate water. They have built an entire civilisation to keep it off themselves. I will help them. I will take it away — all of it.
I landed in 2019 with a machine designed to adsorb a planet: pore-tuned amorphous silica, aluminosilicate cages that sieve molecules by diameter, hygroscopic salts that drink three times their own mass. It worked beautifully. It also only ever cleared about one cubic metre at a time. I had, I admit, underestimated your oceans.
A logistics manager in Hai Phong asked what my strange sachets cost. Her container of cocoa had arrived mouldy — "container rain", 28°C of ocean air sweating onto cold steel every night for a month. She did not hate water. She hated it in the wrong place. I had been wrong about your entire species for four years, which is a long time to be wrong at that distance.
I downgraded the planetary programme to a product catalogue. I remove moisture by the gram, from exactly the cubic metre that needs it: a reefer, a blister pack, a camera lens, a pallet of green coffee. You keep your oceans. Your cargo stays dry. I have made my peace with this. Mostly.
What I build
Every grade I pack is DMF-free, food-contact safe where I say so, and leaves my building with a batch certificate of analysis. I will private-label and cut custom sachet sizes from 10,000 units.
My workhorse
Amorphous silicon dioxide beads in Tyvek, kraft or non-woven pouches, 1 g to 1 kg. It holds up to 35% of its weight in water and keeps holding it across a wide humidity range. When you do not know what to use, use this.
My surgeon
Crystalline aluminosilicate with a pore fixed at three or four ångströms — a cage that admits water and refuses almost everything else. It drags air to very low dew points and it keeps working hot, where silica gel surrenders its water back to you.
My economist
Your own planet made this one; I only kiln-activate it. Cheaper per gram than gel, excellent below 25°C, entirely mineral and landfill-benign. This is what I reach for when the volume is large and the budget is honest.
My heavyweight
Calcium chloride in a leak-proof pouch that converts water into a sealed gel. Hang six to twelve in a 20 ft box and the container rain stops for the whole ocean leg. It drinks up to 300% of its own weight — the closest I have come to my original ambition.
My witness
Cobalt-free reversible spots at 5/10/15% or 30/40/50% RH. I include these because you argue with each other about whether the box was wet on arrival, and a card does not argue. It simply states what it saw.
My permanent fix
Rigid HDPE canisters for diagnostic strips and ammunition, plus rechargeable units and dry boxes for lenses, boards and seed stock. Bake them in an oven and they come back to life. I approve of anything that refuses to be thrown away.
The physics
Your sponges absorb: water fills them. My materials adsorb: a water molecule strikes a pore wall and stays there. One gram of my silica gel carries roughly 800 m² of internal surface. That is one of your football pitches, folded into a bead the size of a peppercorn. I find this far more impressive than you appear to.
Warm air holds more water. When a container cools overnight, that air reaches dew point and sweats onto the coldest surface it can find — usually the steel roof, directly above your pallets.
My desiccant lowers the vapour pressure inside the enclosure. Water migrates towards the lower pressure, exactly as physics requires, and binds inside the pore network instead of condensing on your goods.
Gel and sieve hold water physically. Calcium chloride converts it into a sealed gel, so nothing drips back out even when your crew handles the pouch upside down. They will.
A starting point, not a specification. Tell me the lane and the season afterwards and I will check it properly — the tables everyone copies from each other are usually wrong by a season.
6units of 10 g silica gel
≈ 60 g total. Equivalent to 2 × 30 g sachets if you prefer fewer pieces.
Send me this figure8× 1 kg container dri poles
Hang them evenly along both side walls above the cargo line, clear of the doors.
Ask me to review the laneDeployments
Container rain, rust bloom, cartons collapsing under their own damp weight. I send dri poles plus an indicator card on the door post, so the condition on arrival is documented rather than debated.
Canisters and sieve sachets sized against your stability data, not against a catalogue page. Low-dust grades, migration-tested films, traceability per lot. I keep the paperwork you will be audited on.
Dry packing for moisture-sensitive devices in the workflow you already run: barrier bag, sieve desiccant, indicator card, floor-life control. I have read J-STD-033 more times than is healthy.
Green coffee, cocoa, nuts, spices, dried fruit. I stop the caking and the mould without touching the product itself — food-contact approved pouches only, no exceptions, no arguments.
Mildew on a 40-day leg will eat your margin before the container is unsealed. Small-format gel in the shoebox, bulk clay in the master carton. Cheap insurance.
Clay desiccant to MIL-D-3464 Type I/II for long-term preservation of tooling, spares and vehicles in unheated stores. Your militaries understood my work faster than your retailers did.
My measurements
Measured in my chamber at 25°C and the stated relative humidity. Ask and I will send the full isotherm curves — I would rather you check my figures than trust them.
| Grade | 20% RH | 40% RH | 80% RH | Works hot? | Regenerates |
|---|---|---|---|---|---|
| Silica gel, white | 9% | 20% | 35% | Poor >40°C | 120°C / 3 h |
| Silica gel, indicating | 8% | 18% | 32% | Poor >40°C | 120°C / 3 h |
| Molecular sieve 4Å | 20% | 21% | 22% | Yes, to 230°C | 250°C / 2 h |
| Montmorillonite clay | 7% | 14% | 28% | No | 100°C / 4 h |
| Calcium chloride gel | — | 80% | 300% | Yes | Single use |
| Activated carbon blend | 5% | 11% | 20% | Moderate | Single use |
Questions you keep asking me
I am the standard this company is held to, which is the part that should concern you. Everything else on this page — the grades, the capacities, the compliance — is real, documented and testable in your own chamber. I will send samples so that you can prove it rather than believe me.
Yes, without exception. Dimethyl fumarate has never been used in anything I have made or in anything my contract packers have made, and every shipment I send carries a declaration saying so.
Use my food-contact grade: approved non-woven, food-safe gel, designed for incidental contact. I still want a header seal or a separate compartment when the product is a powder. I have seen what your filling lines do at speed.
Stock sachets and dri poles ship from one carton. Printed or private-label pouches start at 10,000 units. Custom pore chemistry and co-packing I quote case by case, because I have to run them first.
Sealed, in the original barrier bag, below 30°C. An opened bag left on a humid production floor can lose most of its capacity in a single shift. This is the true cause of almost every "your desiccant did not work" message I receive, and I receive them often.
I ship to 41 countries. MSDS, CoA, REACH and RoHS statements, non-hazardous declarations and food-contact certificates travel with the consignment — issued before you ask, not after.
Open a channel
Give me the cargo, the route and the season. I will return a dosing recommendation, a sample pack and a price — usually within one of your working days.
My lab
lab@vapodry.example