SUP board maintenance: complete guide for a long lifespan

A SUP board that shows bumps, leaks, or discoloration after just two summers is almost always the result of avoidable deferred maintenance. With a few consistent habits, you can keep your board in excellent condition for years and save yourself significant repair costs. This SUP board maintenance guide explains exactly what to do and when, for both inflatable boards and hardboards.

Inflatable or hardboard: what changes in maintenance?

The basic principles are the same for both types of boards: clean, store dry, and protect from extreme temperatures. However, there are clear differences in approach.

• Inflatable SUP boards are vulnerable to heat, sharp objects, and long-term rolled storage under pressure.
• Hardboards made of epoxy or fiberglass are susceptible to impacts, UV radiation, and moisture infiltration through small scratches.

Not sure which type suits you? Check out our overview of all SUP boards or consider a SUP board with a seat if you also want to tour or fish quietly.

Cleaning your SUP board: how to do it right

Rinse your board after each use with clean, lukewarm water. Salt, algae, and sand will eventually affect the material and adhesive bonds of the deck pad. Never use a high-pressure cleaner or aggressive cleaning agents.

Step-by-step cleaning

1. Rinse the entire board with a garden hose or buckets of clean water.
2. Rub off stubborn stains with a soft sponge and mild soap.
3. Clean the fins and fin boxes separately; this is where most dirt accumulates.
4. Dry the board completely before storing it, including in the rails and around the valve (for inflatables).

Deck pad maintenance

The EVA foam deck pad attracts dirt and sunscreen. A soft brush with some dish soap removes residue without damaging the material. Then let it dry in the shade.

SUP board maintenance during storage

Improper storage is the main cause of premature wear. Two situations are particularly risky: storage in a hot room and leaving it rolled up for too long.

Storing an inflatable board

• Release some air pressure when storing for longer periods, but never roll up the board completely deflated; this can cause the adhesive bonds to loosen.
• Store the board loosely rolled, not tightly compressed, in the provided bag.
• Choose a cool, dry storage place. A shed or garage that heats up significantly in summer is unsuitable; temperatures above 50 degrees Celsius can damage the PVC.
• Avoid direct sunlight for long-term storage.

Storing a hardboard

• Store a hardboard horizontally on soft foam supports or hang it vertically on the wall with a special wall mount.
• Never place anything heavy on top of the board.
• A board bag with UV protection significantly extends the life of the laminate.

Performing minor repairs yourself

Damage doesn't always require a professional repairer. Many problems can be solved yourself in fifteen minutes.

Locating and sealing a leak in an inflatable board

Inflate the board and rub the surfaces with soapy water. Bubbles reveal the leak. Seal small holes with the repair kit included with most boards: clean the area, lightly roughen it with sandpaper, apply the glue, and firmly press the patch. Wait at least 24 hours before using the board again.

Repairing dents and scratches in a hardboard

Small scratches in the gelcoat can be filled with epoxy paste. Larger dents where the laminate is pressed in require careful sanding, filling with fiberglass material and epoxy, and then sanding and painting. In doubt? Have this done by a professional to prevent further damage.

Seasonal maintenance: ready for winter and the new season

At the end of the season, your board deserves a thorough cleaning before it disappears into storage for months.

• Check all fin boxes for cracks and loose screws.
• Inspect the valve of an inflatable for wear and replace the seal if necessary.
• Apply a layer of UV-protective wax or polish to the nose and rails of a hardboard.
• Check the leash and handle for wear; replace any questionable parts.

At the beginning of the new season, check if the air pressure of an inflatable remains stable after 24 hours of inflation. A pressure drop indicates a small leak that you'd better fix now than in the middle of the water.

The most common mistakes in SUP board maintenance

• Storing the board wet, causing mold and delamination.
• Leaving the board in a hot car or trailer after use.
• Leaving fins clamped in during transport, causing the fin boxes to deform.
• Placing sharp objects like bicycle keys or hooks directly on the board.
• Placing the board directly on concrete or asphalt without protection.

Materials you should have at home

A small maintenance kit saves you a lot of hassle. Always have these on hand:

• Soft sponge and mild soap
• Repair kit for inflatables (patch, glue, sandpaper)
• Epoxy paste for hardboards
• Soft drying cloth or microfiber towel
• UV-protective spray or wax (for hardboards)
• Spare valve seal

Good SUP board maintenance takes no more than ten to fifteen minutes per session. That's a small investment for a board that performs optimally season after season.

Looking for a new board or curious which models score well on durability and ease of maintenance? Check out our full range of SUP boards, including SUP boards with a seat for those who like to sit comfortably on the water.