You just got off the water, you’re tired, the board’s wet, and there’s a voice saying “I’ll deal with it properly next time.” I get it. But the way you spend the next ten minutes is the single biggest factor in whether this board lasts ten years or two seasons.
I’m Allen, Senior Industrial Designer at ABYSUP, and I’ve spent nearly a decade designing inflatable paddle boards — which also means I’ve seen exactly how they die. It’s almost never dramatic. It’s not a puncture or a crash. It’s mildew from a board rolled away damp, or a slow UV bake from being stored in the sun. Both are completely preventable.
So here’s the full routine: how to clean your board after each paddle, how to dry it so it never grows mold, and how to store it — inflated or deflated — so you pull it out next season as good as the day you bought it.
Why Care Matters More for Inflatables Than People Think
Here’s the good news first: a quality inflatable is genuinely tough. The PVC and drop-stitch core shrug off impacts that would crack a hard board. So the threats to your board aren’t the ones people worry about.
The real enemies are quieter — and there are only two that matter:
- Moisture trapped in storage. Roll a damp board into its bag and you’ve built a perfect dark, warm, humid home for mildew. It’s the number one killer of inflatable SUPs, and it’s 100% avoidable.
- UV exposure. Sunlight breaks down PVC and fades color over time. A board left rigged on a sunny balcony “for convenience” ages faster than one paddled hard and stored right.
Notice neither of those happens on the water. Your board doesn’t wear out from paddling — it wears out from how it’s treated in the fifteen minutes after. That’s actually empowering: get the after-care right and the board outlasts your interest in upgrading. If you want the deeper reference version, our full maintenance and care hub goes further than this guide.
How to Clean Your Inflatable Paddle Board (Step by Step)
Cleaning is simpler than most people make it. You don’t need special chemicals — in fact, harsh ones do more harm than good. Here’s the routine I use on my own board.
The standard after-paddle rinse
- Rinse with fresh water while the board is still inflated. A garden hose on normal pressure is perfect — skip the pressure washer, which can force water into seams.
- Wipe the deck pad with a soft sponge or cloth. The textured grip traps sand and grit, so give it a gentle scrub.
- For stubborn spots, use a little mild soap (dish soap is fine) diluted in water. Rinse it off fully — leftover residue attracts dirt.
- Never use bleach, solvents, or abrasive scrubbers. They degrade the PVC and strip the UV-protective treatment.
After salt water or the ocean — don’t skip this
Salt is corrosive and it doesn’t evaporate with the water — it crystallizes and stays behind, working at your valve, fittings, and seams. A freshwater rinse after every saltwater session is non-negotiable. Pay special attention to the valve and any metal D-rings, where salt buildup causes the most trouble over time.
Lake or river paddler? You can rinse less obsessively, but a quick hose-down still removes algae, mud, and anything that might stain the deck.
How to Dry Your Board (The Step Everyone Rushes)
If cleaning is the easy part, drying is the part that actually saves your board. I’ll say it plainly: a board put away even slightly damp will eventually grow mildew. There are no exceptions.
Do it right and it takes five extra minutes:
- Towel-dry the whole board first — top, bottom, and rails — while it’s still inflated and easy to handle.
- Air-dry in the shade, not direct sun. You want it bone dry, but UV is the enemy, so dry it under cover or on a cloudy spot.
- Don’t forget the underside. Flip it or stand it on edge — water loves to sit on the hull where you can’t see it.
- Check the deck pad carefully. The foam grip holds moisture longer than the smooth PVC, so it’s the last thing to dry and the first place mold appears.
“Early in my career we had a customer return a board with a musty smell and dark speckling along the deck seam. Nothing was wrong with the board — it had been rolled up wet, once, after a single trip. That one return taught our team to print a ‘dry completely before storing’ reminder right on the inside of every backpack. The cheapest design fix we ever made, and one of the most effective.” — Allen Xiao, ABYSUP Design Team
How to Store It: Inflated vs Deflated
This is the question I get most, so here’s the direct answer before the explanation: for short breaks, store it inflated. For long-term or seasonal storage, deflate and roll it. Both are fine — they just suit different situations.
Storing it inflated (short-term)
Paddling again in a few days or weeks? Leave it inflated — it saves pump time and is easier on the material than repeated tight rolling. Two rules: release a little air so the board isn’t at full pressure if temperatures rise (heat expands the air and stresses the seams), and keep it out of direct sun. A garage, shed, or shaded covered area is ideal.
Storing it deflated (long-term & winter)
Putting it away for the season? Deflate fully, make sure it’s completely dry (see above — this is when mildew strikes), and roll it loosely. Avoid hard creases in the same spot every time, which stress the material over months. Then store the bag somewhere cool, dry, and dark.
- Temperature: avoid extreme heat (a baking attic or hot car) and hard freezes. A stable indoor temperature is best.
- Off the floor if you can — a shelf avoids damp concrete and accidental crushing.
- Don’t stack heavy items on top of a rolled board. Compression over months can deform the core.
For apartment paddlers, this is the whole reason you bought inflatable: deflated, it lives in a closet. Keeping it in its proper padded backpack protects it from dust and scuffs while it’s tucked away.
Frequently Asked Questions
Should I store my inflatable paddle board inflated or deflated?
Both work — it depends on how soon you’ll paddle again. For short gaps of days or a few weeks, leave it inflated (with a little air released so it’s not at full pressure) and keep it out of the sun. It saves setup time and is gentle on the material.
For long-term or winter storage, deflate it fully, dry it completely, and roll it loosely into its bag. The single rule that overrides everything: it must be bone dry before it goes away, or mildew is almost guaranteed.
How do I get mold or mildew off my paddle board?
Mix a mild soap with fresh water, apply it to the affected area with a soft cloth or sponge, and gently scrub. For tougher mildew, a diluted white vinegar solution works without damaging the PVC. Rinse thoroughly and — this is the important part — dry the board completely before storing it again.
Avoid bleach and harsh chemical cleaners. They can strip the board’s UV-protective coating and weaken the material, trading one problem for a worse one. Prevention beats removal every time: dry-before-storage is how you never have this issue again.
Can I leave my inflatable paddle board in the sun?
For a paddling session, of course. For storage, no. Prolonged UV exposure is one of the two things that genuinely shortens an inflatable’s life — it breaks down PVC over time and fades the colors. A board stored rigged on a sunny balcony ages far faster than one stored properly in the shade.
If you’re drying it after a paddle, do that in shade too. You want it fully dry, but you don’t need direct sun to get there.
How do I clean my board after paddling in salt water?
Rinse it with fresh water after every single saltwater session — this one isn’t optional. Salt crystallizes as the water evaporates and stays behind, slowly corroding your valve, fittings, and seams. A simple hose-down removes it.
Give extra attention to the valve and any metal hardware, where salt buildup does the most damage. A couple of minutes with a garden hose adds years to the board’s life.
How should clubs and rental fleets handle SUP cleaning and storage at scale?
The principles don’t change with volume, but the discipline matters more — one damp board rolled away becomes a mildew problem across a whole storage rack. Build a fixed routine: freshwater rinse, towel-dry, shaded air-dry, then store deflated and stacked without heavy compression, or inflated on racks out of the sun.
For operators running boards daily, durability and easy maintenance directly protect your margins. If you’d like a fleet built and warrantied for exactly that kind of heavy use, our team is happy to help.
Keep It Simple, Keep It Paddling
That’s the whole secret — there’s no complicated ritual. Rinse it, dry it completely, store it out of the sun. Do those three things and your board will still feel new years from now. Most boards that fail early didn’t wear out; they were simply put away wet or left baking in the sun.
If something does go wrong — a small scuff, a minor leak — a quick fix with a repair kit usually gets you straight back on the water, and our boards are backed by a 2-year warranty for genuine defects. If you’re shopping for a board built to be lived with — yoga, fishing, lazy weekend cruising — take a look at our Lifestyle Series. And if you run a club, rental, or shop and want a low-maintenance fleet you can stand behind, our team would love to talk — apply to the ABYSUP dealer program.
Take care of the board, and it takes care of every day you spend on the water.
