Of every question that arrives in our inbox, one outnumbers the rest by a mile: "okay, but is it actually waterproof?" Asked before beach holidays, before boat charters, before rainy-season deployments, before someone trusts a case with a camera worth more than their car. It's a fair question — "waterproof" is the most abused word in the gear industry, slapped on everything from jackets that wilt in drizzle to phone pouches that survive exactly one summer. So let's answer it properly, once, at full depth. Pun intended. 💧
The short version: yes — genuinely, certifiably, engineered-from-birth waterproof, to the IP67 standard, latched and sealed. The long version is much more useful, because the interesting questions live in the details: what IP67 actually tests and what it doesn't, the three-part engineering that delivers it, the scenarios where the promise holds versus the ones where physics says otherwise, how to verify your own case in the bathtub, the handful of user errors that defeat a perfect seal, and what salt, altitude, sand and decades do to the system. As an authorized Peli distributor we've sold thousands of these cases into rain, surf, cargo holds and rivers — this article is everything we know about the question, in one place. Bring a towel. 🏊
⚡ The Short Answer, Properly Stated
A genuine Peli Protector case, closed and latched, is rated IP67: completely dustproof and protected against water immersion under the conditions the standard defines. That rating isn't marketing vocabulary — it comes from a standardised test regime (the international IP, or Ingress Protection, system) with pass/fail criteria, and it's the same certification language used for professional electronics, military equipment and industrial hardware. In practice it means rain is beneath the case's dignity, splashes and spray are irrelevant, and a latched case that goes overboard or gets dropped in a puddle, stream or shallow water comes back with dry contents. The heritage backs the paperwork: this company was founded by a scuba diver, its first hit product was a watertight dive case, and sealing has been the design religion ever since — a story we told in full in our history of where Peli cases are made. But a rating is only as meaningful as your understanding of it, so let's unpack what those two digits actually promise. 📜
🔬 What IP67 Actually Tests (Digit by Digit)
The IP code is two independent exams. The first digit — 6 — is the dust exam, and it's the highest grade that exists: the case is placed in a chamber of circulating fine talcum-grade dust, and to score a 6 there must be no ingress at all. Not "a little", not "acceptable levels" — none. This is the forgotten half of the rating, and arguably the half that matters most often: beach sand, desert grit, construction dust, harvest chaff and workshop particles kill more electronics slowly than water kills quickly, and a 6 means the interior is a clean room by comparison. The second digit — 7 — is the immersion exam: the sealed case is submerged in water (the standard frames it as up to a metre of depth, for half an hour) and must keep its contents dry. Note the careful shape of that promise: it's a defined depth for a defined time — a test of temporary submersion, not a promise of indefinite life on the seabed. That's exactly the protection profile real life demands: the capsize, the drop off the dock, the wave over the gunwale, the case forgotten in a flooding tent — events measured in minutes and centimetres, not hours and fathoms. We wrote a plain-language primer on the whole rating system in our IP67 explainer; this article is its engineering-and-practice sequel. 🎓
⚙️ The Machinery of Dryness: Three Parts, One System
Waterproofing isn't a feature you add; it's a system you engineer, and the Peli system has three protagonists. Part one: the O-ring gasket. A continuous polymer ring seated in a moulded channel that runs the full perimeter of the shell. When the lid closes, a tongue-and-groove geometry compresses the gasket evenly along its entire length — no corners where the seal thins, no seams where two gasket ends meet badly, one unbroken line of compression. This is the actual barrier, and everything else exists to serve it. Part two: the latches. The double-throw latches aren't just closures; they're calibrated compression tools. Their over-centre action pulls the lid down with consistent, designed force — enough to seat the gasket fully, repeatable ten thousand times, achievable by cold wet hands. A waterproof case with vague closures would be a lottery; the latch mechanism is what makes the seal a specification rather than a hope. Part three: the automatic pressure equalization valve — the small round component people mistake for decoration, and the quiet genius of the design. It's built around a membrane that breathes air but blocks liquid water: as altitude or temperature changes swing the pressure differential between inside and outside, the valve equalises it automatically. Without it, a case sealed at sea level and driven up a mountain (or flown in a cargo hold) becomes a suction vessel — sometimes literally impossible to open — and a case sealed warm and cooled fast pulls a vacuum that strains the gasket line. With it, the case breathes air while remaining sealed to water. Three parts, one system, zero rituals required from the owner beyond closing the latches properly. That's the whole machine. 🔩
🤿 Born on a Dive Boat: Why the Heritage Is Technical, Not Sentimental
Company origin stories are usually marketing garnish; this one is an engineering specification. The company began in 1976 in a California dive shop, and its founding products were built for the least forgiving quality-control department on earth: scuba divers, whose equipment failures happen underwater, in front of witnesses, with consequences. A dive-born company doesn't get to treat sealing as a feature tier — it is the product, and every design decision since inherited that priority. This shows up in choices a land-born luggage company would never make: the gasket channel moulded as primary geometry rather than an added trim piece; latches engineered as compression instruments; the valve as standard equipment rather than a premium option; shells specified for marine UV and salt years. It also explains the culture of over-testing — cases rated for temporary immersion routinely survive far worse in the wild, because the design margins were set by people who assumed the case would someday do its job in the ocean. When we say waterproofing is the house religion, that's the literal history: the first believers were underwater. Fifty years later, the DNA is unchanged — and it's why the answer to this article's title has been the same for half a century. 🌊
🚫 What "Waterproof" Does NOT Mean (The Honest Section)
Trust is built by boundaries, so here are the promise's edges, plainly. It is not a dive housing. IP67 covers temporary immersion at shallow depth; taking a case diving to real depths is a different physics problem (water pressure climbs fast with depth) and a different product category. It only applies latched. An open case is a bucket; a case with one latch flopped is a case with a gasket doing half its job. All latches, every time — the two-second discipline behind the whole guarantee. It doesn't cover what you do to it: drill a hole for a cable pass-through, mount hardware through the shell, or peel the valve to sticker over it, and you've amended the engineering — solutions for cable glands and panel mounts exist, but they must be done properly (our workshop does exactly this for custom builds). It doesn't make contents immortal in every scenario: a case that floats away downriver protects its contents perfectly while being gone — sealing and securing are different problems, which is why deck lines and carabiners exist. And it isn't a substitute for sense with the truly irreplaceable: for the wedding footage and the passport, the case is the second line of defence behind not dropping them in a lake in the first place. Everything inside these boundaries — rain, storms, spray, splashes, drops into water, temporary submersion, dust, sand, mud — is the case's home territory. Everything outside them has a different right tool. 🧭
🌦️ Scenario by Scenario: Where the Promise Lives
Abstract ratings become useful when mapped to actual days, so here's the honest scenario ladder, from trivial to boundary. Rain, any amount, any duration: not even a test — rain never approaches immersion, and the gasket line treats a monsoon like humidity. This is why film crews shoot through storms out of open Peli cases used as dry islands (lid down between takes). Airport tarmac and trolley life: checked baggage sits on carts in downpours more often than passengers imagine; a latched case simply doesn't participate in that problem. Boat spray, wave splash, wet decks: core habitat — this is the environment the company was literally born in. The capsize / overboard drop: the exact profile IPX7 tests — minutes of shallow submersion — and the scenario behind decades of customer stories that all end "opened it up, everything dry". Clip the case to the boat anyway, for the floating-away reason above. The river crossing / flooded ground: fine within the temporary-shallow envelope; standing gear in a streambed overnight is outside it. Snow and ice: snow is slow water plus cold, and both are shrugged off — with the bonus that the valve prevents the warm-cabin-to-frozen-boot pressure lock. Sand and dust storms: the 6 earns its keep — zero ingress means camera sensors and connectors live in a different universe from the beach around them. Pressure washing / directed jets: respect the boundary — IPX7 is immersion, not high-pressure jets aimed at the gasket line; hose the mud off sensibly rather than power-blasting the seal. Map your life onto that ladder and the answer to "will it survive my X?" is usually obvious. 🗺️
💧 Waterproof daily carry: the small sealed classics
🧂 Salt Water: The Special Case
Chemistry deserves its own chapter, because "waterproof" and "salt-proof forever without care" are different claims. The good news first: salt water doesn't get in — sealing is sealing, and the ocean is just water with attitude as far as the gasket line is concerned. Capsize in the Baltic, spray on a charter, a wave over the transom: contents dry, promise kept. The honest news: salt attacks the hardware over time, from outside. Dried salt crystals are abrasive and hygroscopic — they grind at hinge pins, sit in the gasket channel, and slowly age elastomers and metal parts that would otherwise last decades. The entire defence is one habit: rinse after salt exposure. Thirty seconds of fresh water over the closed case — latches worked a few times under the stream, gasket channel wiped after — resets the chemistry clock completely. Boat crews who rinse religiously run twenty-year cases; the rare "my latches got stiff" story almost always ends with "…lives on a sailboat, never rinsed". The sea takes everything eventually, but it takes unrinsed things first. Full water-sport packing doctrine — including the case's role in it — lives in our diving trip packing guide and kayak packing list. 🌊
🛟 Does It Float? (The Physics, Honestly)
The second-most-asked water question, and the answer is satisfying physics rather than a yes/no. A sealed case is full of air, and air floats; whether your case floats depends on whether the sealed air's buoyancy beats the contents' weight. In practice: micro and small cases with everyday contents (phone, keys, GoPro, documents) float readily — bobbing bright-yellow rescue beacons of your own valuables, which is exactly why we push the bright colours for water use. Medium cases with mixed loads usually float, sometimes low in the water. A case densely packed with metal — tools, lenses wall-to-wall, dive weights (please no) — can exceed its buoyancy and sink like its contents deserve. Two working rules: first, test yours — bathtub, packed as it travels, thirty seconds of observation beats any theory; second, float or not, clip it — a floating case in a river is a case having its own adventure, and a carabiner to a deck line costs three euros. Buoyancy is a delightful bonus feature of a sealed design; it is not the retention plan. 🪁
🎈 Altitude, Cargo Holds and the Vacuum-Lock Story
The valve earns a second chapter, because altitude is where sealed cases without one go to embarrass their owners. The physics: seal a case at sea-level pressure, carry it up a mountain or into an aircraft hold, and the outside pressure drops while the inside stays put — the case becomes gently pressurised, straining outward at the gasket. Reverse the trip and it's worse: seal at altitude or in cold, descend or warm up, and the case pulls a partial vacuum — the lid sucks down, the latches fight you, and the classic panicked email arrives: "my case won't open, is it broken?" It isn't; it's demonstrating Boyle's law. The automatic valve makes the entire drama disappear: its membrane bleeds air both directions continuously, so the interior tracks ambient pressure through every climb, descent, cold snap and heatwave — while remaining a wall to liquid water. Two practical notes complete the lesson. First: if you ever meet a vacuum-locked sealed box (someone else's valveless brand, say), never pry at the lid with tools — equalise it by pressing the valve if present, or waiting through the temperature change; forcing a vacuum-locked lid is how gaskets and rims get damaged. Second: this is why the valve must never be blocked — a stickered valve turns every flight into a slow-motion stress test of the seal. Every genuine Protector ships with this problem already solved; frequent flyers, mountain crews and cargo shippers are the people who notice most what they never have to think about. ✈️
🛁 Test It Yourself: The Home Verification Ritual
Trust, then verify — we actively encourage owners to test, because a two-minute ritual converts a spec sheet into personal certainty. The paper test (gasket health): close the empty case on a strip of paper at several points around the perimeter; firm, even resistance when you tug means the gasket is compressing properly everywhere. A spot where the paper slides free is a spot to inspect — usually grit in the channel, occasionally a tired gasket due for its (cheap, stocked) replacement. The tissue test (the confidence builder): pack the case with dry tissue paper, latch fully, submerge it in a bathtub or bin of water for a few minutes, weighted if it insists on floating. Pull it out, towel the exterior, open over a dry surface: bone-dry tissue is the entire IP67 story performed live in your bathroom. The valve check: confirm the pressure valve is unobstructed and unpainted — that's the whole maintenance requirement for the cleverest part on the case. Do the ritual when a case is new (peace of mind), after any suspicious event (the doorframe incident, the drop), and annually as part of the spring once-over. Owners who've run the tissue test once stop asking us the title question — the bathtub is very persuasive. 🧻
🧬 Gasket Biology: Lifespan, Care and the Pinch
The gasket is the living tissue in an otherwise geological product, so it deserves a biology lesson. Lifespan: decades, genuinely — the elastomer is specified for compression cycles and weathering far beyond consumer duty, and most cases retire (i.e., never) with their original seal. What ages a gasket isn't use; it's abuse's quieter cousins: UV (years of direct sun), solvents (never clean the channel with aggressive chemicals — damp cloth only), salt residue (see above), and permanent deformation from a case stored latched hard for years (store latched loosely or open). The pinch — the number one seal killer in the wild: a strap end, cable, or divider corner lying across the gasket line when you latch. The case closes, feels closed, and carries a channel-shaped leak straight through its own seal. Defence is the three-second closing ritual we preach in every guide: one palm-sweep along the gasket line before latching, then the latches. Replacement: when a gasket finally does tire — visible flattening, a failed paper test with a clean channel — replacement seals exist, cost little, install by hand, and reset the case to day one. Ship of Theseus, waterproof edition. The gasket is the only mortal part of the sealing system, and even it gets reincarnation. 🔄
🙈 How Owners Accidentally Defeat a Perfect Seal
In our years of warranty conversations, genuine seal failures are vanishingly rare — but "waterproof case leaked" stories do exist, and almost all decode to the same short list of human amendments. The pinched strap (see above) — the champion, responsible for the majority. The sticker over the valve: festival laminate or fleet label applied across the pressure valve turns the breathing membrane into a blocked airway — pressure differentials then fight the gasket instead of equalising. Sticker anywhere else; never the valve. Grit in the channel: a beach season of sand grains sitting in the gasket groove creates micro-bridges across the seal — the damp-cloth wipe exists for exactly this. The overstuffed lid: contents proud of the base line hold the lid fractionally open against the latches; it looks shut, and the gasket never reaches designed compression. If latching takes force against springy contents, repack. The DIY hole: drilled cable pass-throughs and screwed-on accessories void physics, not just paperwork — panel frames, cable glands and our workshop's proper modifications exist so the shell stays a sealed system. The unlatched latch: three of four clacks is a 75% seal in the same sense that a door 75% closed is closed. Every item on this list costs zero euros to avoid and one habit to prevent. The case's engineering holds up its half of the bargain with legendary stubbornness; these six are the owner's half. ✋
💨 The Condensation Plot Twist: Waterproof Both Ways
Here's the sophistication that separates case veterans from beginners: a sealed case seals in both directions, and the moisture problem you're likeliest to actually meet comes from inside. Two mechanisms. Packed-in humidity: close a case in a humid climate — or worse, pack damp gear after a wet shoot or dive — and that moisture travels with the contents, sealed in its own tropical microclimate, free to condense on cold glass and metal at the destination. The temperature-swing cycle: a case that rides a cold cargo hold or winter boot and then opens in a warm room invites condensation onto its chilled contents — not a leak, just physics doing dew-point arithmetic on your lenses. The defences are cheap and total: desiccant sachets living permanently in every electronics case (recharge or replace them seasonally); dry-pack discipline — towel-dry gear before it goes in, and after truly wet jobs let kit and case air out before long-term sealing; and the acclimatisation pause — after big temperature swings, let the latched case sit and warm toward room temperature before opening it onto humid air. The beautiful corollary: managed properly, the seal becomes a dryness engine — a sachet inside a latched case maintains a desert microclimate for months, which is why sealed cases are the best long-term storage electronics and optics can get. Waterproof keeps water out; wisdom keeps water from being invited in. 🌡️
🥶 Cold, Heat and the Seal: The Temperature Chapter
Water is rarely room-temperature in the field, so the sealing system's thermal range matters. The shell side is straightforward: the engineering polypropylene stays ductile in freezes that turn cheap plastics brittle-crackable, and shrugs off summer heat that warps lesser shells — the family's published operating ranges span the kind of numbers that cover Arctic tarmacs and parked-car summers alike. The gasket side is where design quality shows: elastomers stiffen in deep cold and soften in heat, and a properly specified seal is chosen to keep compressing across that whole span — which is why the latch clack feels the same in a Finnish winter and a Sicilian August, and why gear stored in unheated vans stays dry through freeze-thaw cycles that would defeat improvised sealing. Two cold-weather realities worth knowing rather than fearing: latches operate fine in gloves and frost, but ice can film over a case left in freezing spray — a tap clears it, and the seal underneath is unbothered; and the condensation arithmetic from the previous section does its most enthusiastic work in winter, so the acclimatisation pause and the desiccant sachet earn double wages between heated indoors and frozen outdoors. Heat's only genuine long-term note is UV: years of direct sun age any polymer surface, so the decades-long storage spot is shade. Between those wide edges, temperature is simply not a variable the owner manages — which, for equipment that lives in vehicles and weather, is precisely the point. 🌡️
✈️ Waterproof through airports, oceans and years: travel-class picks
📏 From Pocket to Pallet: Sealing at Every Scale
One elegant fact about the doctrine: it scales without dilution. The tiny 1010 sealing a phone on a kayak and the wheeled 1690 sealing a broadcast system in a cargo hold run the same three-part machinery — continuous gasket, compression latches, breathing valve — sized to their perimeters. That's rarer than it sounds: sealing gets harder as lids get bigger, because a longer gasket line means more length where compression must stay uniform and more lid area for flex to work against. The family's answer is visible in the design: bigger cases get proportionally deeper tongue-and-groove geometry, more latches distributed along the perimeter (count them growing up the size ladder), and rib architecture that keeps giant lids from bowing off their seal line under stacked loads. The practical consequence for buyers is freedom: you choose case size by contents and logistics, never by "how waterproof do I need" — the pocket case and the pallet case make the same promise. It's also why mixed fleets work so cleanly on wet jobs: the dive torch in a micro, the cameras in a 1510, the lighting in a 1690, one rain forecast, zero differentiated worry. One doctrine, every displacement. 📦
🎒 Waterproof Case vs Dry Bag vs "Water-Resistant" Luggage
The title question often hides a comparison question, so let's referee the category honestly. Dry bags are wonderful at what they are: light, packable, cheap per litre, and genuinely watertight when rolled correctly by an attentive human every single time — which is their structural weakness: the seal is a technique, not a mechanism, and it comes with zero crush protection and a lifespan measured in seasons of pinhole wear. Clothes, towels, sleeping bags: dry bag, no contest. Cameras, meds, documents: no. "Water-resistant" luggage and backpacks occupy the marketing middle: coated fabrics and covered zips that genuinely shrug off drizzle and lose interest somewhere around real rain — the word "resistant" is doing legally careful work, and a zip is never a gasket. The sealed hard case costs the most per litre and is the only member of the trio where dryness is a mechanical property — gasket, latches, valve, certified, repeatable, technique-free, for decades. Our standing formula applies at every size: soft solutions for the replaceable, sealed shells for the irreplaceable, and the definition of irreplaceable is "would this ruin the day". Rain-day hand-luggage strategy for ordinary trips — including where a small sealed case slots into a soft-bag life — is a topic we covered in packing hand baggage for rainy weather. ⚖️
🎖️ The Proof Nobody Argues With: Institutional Water
If specifications leave you cold, consider who bets on them professionally. Militaries stage equipment through surf landings, monsoons and river operations in these shells — we covered the logic in why armed forces choose Peli cases — and defence procurement does not renew contracts with leaky boxes. Film and broadcast shoot weather for a living; the rain-lashed camera case on every storm-chasing documentary is almost a genre convention. Dive and marine operators — the company's founding tribe — run compressors, cameras and first-aid through decades of salt spray. Expedition science ships instruments through the wettest places on the planet in them. And the quietest testimonial of all: the used market, where twenty-year-old shells sell with the line "gasket good, everything dry" and buyers simply believe it, because the base rate of that claim being true is extraordinary. We ranked the family's travel toughness in our toughest cases guide; the waterproofing story is the same evidence with the hose turned on. Institutions are cynical, budget-constrained and experienced — their standardisation is the closest thing gear gets to a peer-reviewed answer to this article's title. 🏛️
🌊 Three Wet Days (From Our Customer Mail)
Theory lands best as anecdote, so here are three representative days from years of customer correspondence, details blurred, physics intact. The kayak capsize: a customer's loaded touring kayak went over in a cold lake; the 1050 clipped to the deck lines spent several minutes upside down in the water while its owner practiced self-rescue. Phone, keys, licence: dry. His review noted the case was the only calm participant in the incident. The wedding monsoon: a photographer's outdoor ceremony met a cloudburst mid-vows; the open 1510 became a dry island under a table — lid down between lens swaps — while soft camera bags around it wicked rainwater into their padding. The gallery got delivered; the soft bags spent a week drying. The season on a fishing boat: a charter skipper's electronics case lives latched on deck through a full Baltic season — spray daily, the occasional green wave, salt always. His annual ritual is exactly our checklist: fresh-water rinse, gasket wipe, paper test, new desiccant. Case age at last contact: eleven seasons, original gasket, contents never wet. None of these stories is remarkable, and that's precisely the point — they're what the engineering does on an ordinary bad day. The unremarkable dry opening is the product. ⛵
🛒 Buying for a Wet Life: The Short Chooser
If this article is your buying research, here's the condensed matchmaking we do daily. Beach and pool days: a micro case (1010, 1040, 1050) for phone, keys and cards — sealed against water and, just as valuably, sand. Kayak, SUP and sailing: micro or small case, bright colour, clipped to the boat — buoyancy plus visibility plus retention. Boat electronics and fishing seasons: a small-to-medium Protector (1200 class upward) living latched on deck, with the salt-rinse habit. Flying with sensitive gear through rainy-season destinations: the travel trio — 1510 or Air 1535 in the cabin, Air 1615 or 1560 below deck — sealed against tarmac weather and hold condensation alike. Long-term storage of optics, electronics, documents: any sealed shell plus a desiccant sachet, parked in shade — the desert-microclimate trick. And for anything with cables, panels or permanent installs near water: the empty shell plus our workshop, so the modifications keep the physics. Every case in both product rows above is verified, stocked and rated for exactly the lives described — and if your scenario is stranger than these, that's genuinely our favourite kind of email. 🧾
❓ The Waterproof FAQ (Straight From the Inbox)
"Is every Peli family equally waterproof — Protector, Air, Storm, Micro?" The sealed families share the doctrine: gasketed lids, engineered closures, pressure valves across the protective ranges — check the specific model's product page for its rating line, and know that the sealing DNA is the house religion (the family map lives in our model numbers guide). "Can I actually take one underwater while snorkelling?" Surface swimming with a latched micro case: within the envelope. Repeated purposeful diving with it: you're using an immersion rating as a dive rating — shallow and brief keeps faith with the test; depth does not. "Will the valve let water in?" No — that's its entire engineering: air passes, liquid water doesn't. Just never block or paint it. "My case survived X — should I still test it?" After any violent event, run the paper and tissue tests; two minutes of bathtub converts worry into knowledge. "Does waterproof degrade with age?" The shell's sealing geometry: no. The gasket: eventually, slowly, visibly — and it's a cheap stocked part. A tested forty-year-old case is exactly as waterproof as its gasket, which is replaceable. "What about medication and temperature — is sealed enough?" Sealed handles water and dust; temperature is its own logistics problem with its own guide — see travelling with refrigerated medication. "Is a cheap lookalike with a rubber ring the same thing?" A ring is not a system: gasket material spec, compression geometry, latch calibration and the valve are where the certification lives, and where lookalikes quietly aren't. 😉
✅ The Owner's Waterproof Checklist
- All latches, every time — the rating exists only on a fully latched case
- Palm-sweep the gasket line before closing: no straps, cables or corners across the seal
- Valve never stickered, painted or blocked — it's the breathing organ
- Gasket channel wiped with a damp cloth after gritty environments; no solvents ever
- Fresh-water rinse after every salt exposure, latches worked under the stream
- Paper test yearly; tissue-and-bathtub test on new cases and after violent events
- Desiccant sachet resident in every electronics and optics case
- Damp gear towelled before packing; case aired after wet jobs before long-term sealing
- Acclimatisation pause after big temperature swings, before opening
- On water: bright colours and a carabiner — sealing is not retention
- No DIY holes; cable glands and panel mounts done properly (our workshop's daily bread)
- Store latched loosely or open, out of long-term direct sun
- Tired gasket? Replacement seals are cheap, stocked, and reset the case to day one
Final Word 💧
So: are Peli cases really waterproof? Yes — by certification, by engineering and by half a century of soaked-and-opened-dry evidence, from the dive boats the company was born on to the cargo holds and capsizes of a million working days since. The rating is IP67; the machinery is a compressed continuous gasket, calibrated latches and a breathing valve; the boundaries are honest (temporary shallow immersion, latched, unmodified); and the owner's entire contribution is a handful of three-second habits — latch fully, sweep the seal, rinse the salt, respect the valve. Everything in this article you can verify yourself with a bathtub and a tissue, which is exactly what we suggest new owners do once: after that, the question stops being asked and starts being relied on. And if your particular mission lives near the boundaries — cable pass-throughs, marine installs, medical cold chains, months of storage — write to us with the details. Matching sealed boxes to wet problems has been this company's business since 1976, and ours for years: it's the driest job in Poland. 📬
