How to Wax, Clean & Repair a Surfboard

Surf wax is temperature-rated. Buy the wrong one and it melts into a slick puddle on a warm day or turns into a rock that crumbles off in cold water. Match your wax to the water temperature where you surf — not the air temperature, the water temperature.

• Cold water (below 58°F / 14°C): Cold or Extra Cold formula — softer wax that stays sticky in frigid conditions.
• Cool water (58–68°F / 14–20°C): Cool formula.
• Warm water (68–75°F / 20–24°C): Warm formula.
• Tropical water (above 75°F / 24°C): Tropical formula — hardest wax, won’t melt in the sun.

Most brands (Sex Wax, Sticky Bumps, Matunas, Bubble Gum) follow the same temperature ranges. Pick any of them — the wax is honest commodity stuff.

Step 1 — Apply a Basecoat

The basecoat is a hard wax layer that gives the soft topcoat something to grip. It is usually sold as “Basecoat” or “Tropical” wax regardless of where you surf, because the hardness helps it bond to the blank. Apply it in small, tight circles across the entire deck (top surface) from tail to about six inches above where your front foot lands. Work the rails too — anywhere your hands and body contact the board. Press firmly. You want a slight texture building up, not a smooth coat. Do two full passes.

Step 2 — Apply a Topcoat

The topcoat goes over the basecoat using your temperature-appropriate wax. Use light, diagonal strokes — some people do Xs, some do circles, some do straight diagonal lines. All of them work. The goal is a rough, bumpy texture, not a smooth shine. A rough coat of wax grips your feet. A smooth one does not. Apply one or two layers until you have a visible, bumpy surface across the deck.

If you are new to the sport and still figuring out your setup, check our beginner surfing gear checklist — it covers wax, leashes, fins, and everything else you need before paddling out.

Old wax picks up sand, turns gray, and eventually gets so contaminated it stops gripping. Plan to do a full wax job two to four times a year depending on how often you surf and how wide your water temperature swings are.

How to Remove Surf Wax

1. Warm the wax first. Leave the board in direct sunlight for ten to fifteen minutes, or pour a pot of warm (not boiling) water over the deck. The wax needs to soften — cold wax chips off in sharp flakes and takes forever.
2. Scrape it off. Use a wax comb’s straight edge, an old credit card, or a dedicated wax scraper. Work from nose to tail in long strokes. The soft wax peels off in sheets. Do not dig in aggressively or you will scratch the glass.
3. Remove the residue. A film of wax always stays behind. Wipe it off with a citrus-based wax remover (Pickle, Wax Mate, or similar) and a clean rag. Coconut oil or baby oil also works in a pinch. Avoid harsh solvents like acetone — they can damage foam and weaken fiberglass laminate, especially on budget boards.
4. Let it dry completely before applying fresh wax.

Dispose of old wax in the trash, not the ocean. Some surfers collect it and melt old bars into new ones — a small but real way to cut down on plastic waste.

A ding that exposes the foam core lets water in. Water-logged foam is heavier, weaker, and eventually delaminates the glass. Fix dings fast — even a temporary patch the same day keeps the damage from compounding.

Know Your Board Before You Buy Repair Resin

This is the step most beginners skip, and it causes real damage. There are two main blank materials, and their resins are not interchangeable:

• Polyurethane (PU) / Polyester boards: Traditional fiberglass boards. Shaped from PU foam and glassed with polyester resin. Repair with polyester resin or a sun-cure polyester product. Using epoxy resin on a PU board is usually fine cosmetically, but using polyester resin on an EPS board can melt the foam.
• Epoxy / EPS boards: Lighter, more buoyant boards built on expanded polystyrene foam. Require epoxy resin for repairs. Polyester resin contains styrene that dissolves EPS foam on contact — you will make the ding significantly worse.

Not sure which construction your board is? Our comparison of foam vs. epoxy vs. fiberglass surfboards explains the differences clearly.

Quick Field Fix with Solarez or Sun-Cure Resin

Solarez (for both PU and EPS, sold in separate formulas), Ding All, and similar UV-cure products are the fastest way to seal a ding and stop water intrusion. Here is the field process:

1. Dry the ding completely. Pat it with a cloth and leave it open to air for at least an hour — longer if it has been wet. Water under resin causes the repair to fail.
2. Remove any loose glass or foam with a clean blade. The patch needs to bond to solid material.
3. Squeeze a small amount of UV-cure resin into the ding, overfilling slightly. Smooth it with a plastic scraper or your gloved fingertip.
4. Expose to direct sunlight. Most UV-cure resins harden in sixty seconds to two minutes in strong sun. On an overcast day, it takes longer — move to the sunniest spot available.
5. Sand the cured patch flush with 150-grit sandpaper, then 220-grit to smooth.

When to See a Pro Shaper or Repair Tech

A field patch is a temporary seal. Take the board to a professional for:

• Cracks longer than two inches or deep enough to expose significant foam
• Delamination (bubbles or soft spots under the glass that flex when pressed)
• Rail damage near the fins or tail where structural integrity matters
• Any ding on an expensive or custom board where a cosmetic repair matters

A pro repair on a standard ding typically runs $20–$60. It is always cheaper than replacing a board you love. If you are on a budget foamie or a beginner board, see our picks for best soft-top surfboards — foamies are notably more ding-resistant and often easier to repair with basic foam-safe products.

Salt, sand, and UV exposure are the three things that degrade a surfboard fastest over time. None of them are avoidable in surfing, but you can slow the damage significantly with a ten-minute rinse-and-wipe after every session.

• Rinse with fresh water. Salt crystals left on glass etch the surface over time and accelerate oxidation of the resin. Rinse the entire board — top, bottom, rails, fins, and fin boxes — after every surf. A garden hose works perfectly.
• Dry before storage. Wipe the deck and bottom with a towel or let the board air-dry in the shade. Never store a wet board in a bag — trapped moisture promotes delamination and, on PU boards, can lead to yellowing and foam rot over time.
• Clean the fin boxes. Sand packs into fin boxes and eventually makes fins difficult to remove. Rinse them out with fresh water and clear any packed sand with a small brush or your fingernail.
• Inspect after every session. Run your hand along the rails and over the deck. Small pressure dings and cracks are easy to miss visually but obvious by touch. Catch them early and patch them before they take on water.
• UV and yellowing: UV exposure yellows polyester glass and degrades the resin. There is no reversal once the blank yellows — prevention means storing the board out of direct sun when not in use.

A clean board is also easier to rewax. New wax sticks far better to a clean, dry surface than to a board coated in salt residue and old wax film.

Most dings happen out of the water — in parking lots, on roof racks, and in the back of trucks. Transport is where boards get genuinely destroyed, and the fixes are cheap and simple.

Board Bags

A day bag (thin sock-style cover) is not the same as a travel bag (padded, double or triple-layer foam for air travel). For daily use, a day bag protects from UV and minor parking-lot bumps. For flights, invest in a proper travel bag with substantial padding — airlines are not gentle with surfboard bags regardless of the “fragile” sticker.

Day bags are inexpensive and worth having even for short drives. A board sliding around a truck bed or car interior on every turn is a board accumulating micro-damage.

Roof Racks

Soft racks (padded crossbar straps) work for occasional use. Hard racks with dedicated surfboard cradles are better for regular transport. Either way:

• Strap the board fin-side up to keep the fins from sitting on the bars and cracking.
• Do not over-tighten straps — they dent the rails. Firm, not crushing.
• Thread the buckle under the bar or door frame so it cannot flap and scratch the glass at highway speed.
• Double-check the straps before driving. Boards have gone through windshields. It is not a great situation for anyone.

Heat Is a Real Threat

Leaving a board in a parked car in summer heat is one of the fastest ways to destroy it. Interior car temperatures can exceed 160°F on a hot day. Surf wax melts (and runs into everything). More seriously, the heat causes outgassing in the foam that can bubble and delaminate the fiberglass from the inside. Even a sealed ding repair can fail from heat expansion.

If you must leave a board in a car, crack the windows, cover the board with a reflective windshield shade or towel, and park in shade whenever possible. Better: take the board out of the car. A board leaning against a shaded wall beats a board baking in a hatchback.

If you are still choosing your first board and wondering which construction holds up best to daily use and transport, our guide to the best beginner surfboards covers durability alongside performance.

For a full breakdown of what the ISA (International Surfing Association) recommends for board safety and sustainable surf practices, isasurf.org is the authoritative reference.