Is this a DIY fix or a pro job?
Quick answers
- Can I fix a small ding myself?
- Usually, yes -- if it's small, the foam underneath is dry, and there's no soft or spongy spot around it. A ding that has reached the foam is still a common kit job, but it needs filler and fibreglass cloth rather than resin alone.
- When should I take it to a shop instead?
- Cracks that run in a line, delamination, damage that goes deep into the core or soaks a wide area of foam, a buckled or creased deck, a broken stringer, or any damage near a fin box or leash plug -- these usually involve structural strength, not just cosmetics. Colour or gloss matching is shop work too.
- What if I can't get it repaired right away?
- Keep the board dry and out of the water. Waterlogged foam adds weight and can spread the damage well beyond the original spot.
- How do I know if water has got into the foam?
- The board feels heavier than it used to, water weeps from the crack when you tilt it, or a brown or yellow stain spreads under the glass. A soft or spongy patch around the ding points the same way. One check repairers use: tape clear plastic wrap over the ding and leave it in the sun -- condensation forming underneath means there's water inside.
- Does a bad DIY repair cost more to fix later?
- It can. A patch that didn't bond, or one sitting proud of the surface, has to be ground back out before the proper repair starts -- and sealing wet foam under fresh resin traps the water in.
- Do pressure dents on the deck need fixing?
- Usually not. Shallow dents from your heels or knees where the glass hasn't cracked are normal wear and don't let water in. They only need attention if the glass around them cracks.
Usually fine to DIY
Small, shallow dings that haven't broken through to the foam -- surface scratches and dings in the top coat -- are the classic candidates for a repair kit and an afternoon. If the foam isn't exposed and there's no soft or spongy spot, the risk of getting it wrong is low.
A small ding that has reached the foam is still a common DIY job, as long as the foam is dry. It's more work than a surface ding: the hole is filled with a resin-and-filler mix and covered with fibreglass cloth, rather than topped up with resin alone, and each stage has to cure before the next. Match the kit to your board's construction -- an epoxy kit for EPS, never polyester.
Shallow pressure dents from your heels and knees don't need fixing at all if the glass around them hasn't cracked. They're normal wear, they don't let water in, and wax usually hides them anyway.
Kit repairs mean working with resin and sanding fibreglass, so wear gloves and eye protection, use a dust mask or respirator for sanding, and work somewhere well ventilated. Follow the cure times on the resin you're using -- they vary a lot between products and with temperature.
Get it looked at by a shop
Cracks that run in a line rather than a point, damage that goes deep into the core or leaves a wide area of foam exposed or wet, delamination (the skin separating from the foam, often showing as a bubble or a soft spot), a buckled or creased deck, a broken stringer, and any damage near a fin box or leash plug are all worth a professional opinion. These usually involve structural strength, not just cosmetics.
So is any repair where you want the colour, gloss or finish to match the rest of the board -- that's a finishing skill as much as a repair one.
Sometimes the honest answer is that a repair isn't worth it. A board snapped clean through, a large area of delamination caused by water getting in, or an old board whose glass has gone brittle and yellow can cost more to fix properly than the board is worth. A good shop will tell you so.
A board with exposed or waterlogged foam shouldn't keep getting ridden in that state -- water soaked into the foam adds weight and can spread the damage well beyond the original spot. If you can't get it repaired right away, at least keep it dry and out of the water until you can.
Signs the damage is worse than it looks
A ding that looks minor on the surface can sit over a larger problem. Press gently around it: if the area gives, feels spongy, or flexes differently from the rest of the board, the skin has probably separated from the foam over a wider area than the visible mark.
Water is the other signal. A board that feels heavier than it used to, weeps water from a crack when it's tilted, or shows a brown or yellow stain spreading under the glass has taken water in. If you're not sure, repairers use a simple check: tape clear plastic wrap over the ding and leave the board in the sun. Condensation forming on the inside of the plastic means there's water in the foam. Stress lines radiating out from the impact point are worth a professional look too -- they indicate the load travelled further than the dent.
Why a rushed DIY repair can cost more later
A repair kit fills a hole. It doesn't remove water already in the foam, and sealing wet foam under fresh resin traps it there -- which is the one outcome worse than leaving the ding open. A wet board has to dry out first, somewhere warm and well ventilated with the ding facing down. Moving air does more than heat, and drying can take days, or weeks for a badly soaked EPS board.
It also affects what a shop has to do afterwards. A patch that didn't bond, or one built up proud of the surrounding surface, has to be ground back out before the proper repair starts. That's time you're paying for on top of the original job, so a kit is best kept for the damage it genuinely suits rather than used as a first resort on everything.