
- Cut out the bad section of the board, in this case a large blister
- Gluing back the fiberglass that was cut out (in this case I was able to save the fiberglass blister as it was very structurally sound)
- Sanding rough the repair area
- Adding a fiberglass patch or the repair area
- Sanding and blending the fiberglass patch area into the original part of the surfboard
- Hotcoating (a layer of resin) the repair area
- Sanding and blending the hotcoat into the original part of the surfboard
- Polishing
What to know about glassing a surfboard?
Glassing a surfboard is the step that waterproofs and finishes the board. Fiberglass, resin, and any tints, color, and art are added to provide the board with strength, rigidity, and its overall style. The glassing step influences a board’s final weight as well as resistance to dings and abuse.
How to repair a buckled surfboard?
Fix a Very Broken Surf Board: Graft it back together and fiberglass it invulnerably strong. This project is good preparation for making a board from scratch.This repair method uses epoxy resin and microballoon putty. Instead of epoxy you could use polyester resin or vinyl ester …
How to repair surfboard crack?
The basic steps that will be covered are:
- Cut out the bad section of the board, in this case a large blister
- Gluing back the fiberglass that was cut out (in this case I was able to save the fiberglass blister as it was very structurally sound)
- Sanding rough the repair area
- Adding a fiberglass patch or the repair area
How to repair surfboard fin box?
Tools and materials needed to repair a glass-on fin:
- Fiberglass cloth and rope/roving
- Resin and hardener
- Tape
- Sandpaper/sanding tool

How do you fix a cracked surfboard?
0:203:28Fixing a Cracked Surfboard/Ding Repair - 36 - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo getting started I taped off the area with masking tape and then I scuffed up the surface with 120MoreSo getting started I taped off the area with masking tape and then I scuffed up the surface with 120 grit sandpaper.
What resin should I use to fix my surfboard?
If you use polyester resin on an epoxy surfboard it will eat away the polystyrene core. Epoxy on polystyrene is OK and is the best solution when you're on the road as most repair kits are epoxy based.
Can I use epoxy resin on fiberglass surfboard?
But the most important thing you have to realize: if you have an epoxy surfboard, fix it with epoxy resin. If you have a PU surfboard you can actually fix it with epoxy resin or polyester resin, but it's better to fix it with polyester resin.
How do I fix my Fibreglass surfboard?
3:5310:23Surfboard Ding Repair Tutorial - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou can see we're blending right there the flat block and the 40 grit does a really good job toMoreYou can see we're blending right there the flat block and the 40 grit does a really good job to taking off material. Quickly. Now we're going to press the area for lamination.
Whats the difference between epoxy and resin?
The main difference between both adhesive types is the drying time. Both epoxy and resin adhesives require mixing before use, but epoxy hardens much faster than resin glue. Epoxy adhesive is far more expensive compared to resin glue since it has an excellent bonding capability that surpasses all type of adhesives.
Is epoxy stronger than fiberglass resin?
As a general rule, the tensile strength of a polyester bond will be around 20 percent weaker than the same bond made with epoxy. That makes epoxy resin usually the best choice for fiberglass repair work. There are a couple of exceptions.
How do you tell if a surfboard is epoxy or fiberglass?
How do you tell epoxy from regular boards?, Well to start with look at the manufacturers logos (the “stickers” under the glass work), most reputable board builders will put the word epoxy on most or at least one of these, so READ them all first, if you find the word epoxy on any of these than it is an epoxy… as for the ...
Is polyurethane and epoxy the same?
The main difference between this type of material and the epoxy systems is in the molecular structure of the two, which affects how the molecules fuse together during the curing process. Essentially, polyurethanes have a higher cross-link density than epoxies, making them more durable.
Do pro surfers ride epoxy?
Do professional surfers use epoxy surfboards? Yes. Pro surfers compete with expanded (EPS) or even extruded polystyrene (XTR/XPS) surfboards in certain wave conditions. EPS is an open-cell foam.
Can you use Bondo on a surfboard?
Most bondo is polyester, make sure you have the Epoxy kind. If its an old polyglass board (like a surfboard) you can use the regular bondo like you use for cars. If its an epoxy board (which most are) you will need Bondo in the epoxy formulation.
How do you fix a crack in a epoxy surfboard?
2:256:40How to: Rail Ding Repair on Painted Epoxy Surfboard or SUP - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo we're going to cut a patch that's a little bit bigger than our repair. Area and thenMoreSo we're going to cut a patch that's a little bit bigger than our repair. Area and then concentrically patches that are an eighth to quarter inch smaller.
How do you repair a polyester surfboard?
3:294:56Large Rail Ding Repair Polyester Surfboard - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd we're going to blend that patch area into the rest of the board typically i'll start with likeMoreAnd we're going to blend that patch area into the rest of the board typically i'll start with like 120 grit and work up to 220. And on this board it's not a gloss finish.
What do you use to seal a surfboard?
How to Seal Your Wood SurfboardStep 1: Water based polyurethane: paint it on and let it dry. ... Step 2: Linseed oil: a natural way to finish the board that brings out the colors in the wood. ... Step 3: Paint: any kind of paint will help protect the board; house paint, spray paint, or enamel.
How do you use epoxy resin on a surfboard?
0:055:21Working with Surfboard Epoxy: How to Build a Surfboard #23 - YouTubeYouTubeStart of suggested clipEnd of suggested clipLet's talk epoxy specifically surfboard epoxy in this video series we're making a surfboard out ofMoreLet's talk epoxy specifically surfboard epoxy in this video series we're making a surfboard out of EPS foam aka styrofoam you cannot use fiberglass resin or polyester resin to do the lamination.
How do I fix my epoxy surfboard?
5:056:40How to: Rail Ding Repair on Painted Epoxy Surfboard or SUP - YouTubeYouTubeStart of suggested clipEnd of suggested clipWe're using an ultra fine scotch brite pad to wet sand it with. And then once we're done wet sandingMoreWe're using an ultra fine scotch brite pad to wet sand it with. And then once we're done wet sanding that we're gonna use some surfboard number two polish. And our buffer.
How do you fix polyurethane on a surfboard?
There are excellent ding repair kits for polyurethane foam boards, and specially formulated UV curing resin for repairing epoxy and polyurethane surfboards. After you've applied the fiberglass and resin, expose it to sunlight to harden. Then reapply an additional coat of resin to fill in and create a smooth surface.
How to repair a surfboard?
Cut and clean the damaged part. The first step in repairing your surfboard is to cut and clean the damaged part using a razor blade. Carefully cut the damaged part of the board. This way, you will have a beautiful, clean board surface.
How long does it take to repair a surfboard?
A: If this is your first time to repair a surfboard, it will only take a couple of hours to do all the steps correctly. If you include the amount of time that you need to dry your board under the sun, it will take 2-3 days before you can fully fix the ding in your surfboard. After that, it’s good as new and ready to use.
Can you repair a hairline crack on a surfboard?
If it’s just a hairline crack we are talking about, then it’d be easier to repair the board at home. But if the crack is too huge, or the rot has spread to the nose and other large surfaces of the board, perhaps you should consider repurchasing another surfboard instead of trying to fix it.
Can you use fiberglass resin on a repaired area?
Make sure that the smaller circular piece of fiberglass is placed on the repaired area before you add more resin mixture. Wait patiently for the fiberglass to absorb the resin, and then you can repeat the process using the bigger fiberglass. Be careful and make sure that the resin is spread evenly.
Can you use epoxy resin on a surfboard?
Epoxy resin is only recommended if you can see the foam inside your surfboard. This just means the crack is too deep, and it requires an epoxy resin. But if you are dealing with a hairline crack or just a small ding, it is not necessary to use one.
How to repair a ding on a surfboard?
Step 1: Cut it Out. The first thing that you must do it remove the damaged part of the board by cutting out the ding with the razor blade provided. This will help to remove any part that has broken, crushed, or rotted.
What is the last step in sanding a board?
The last step involves a process known as wet sanding. What you’ll need to do is provide a little bit of water to the surface and then use sand paper, sanding in slow circular motions. A paste will develop on the sandpaper and any remaining resin can be washed off the board.
Can you sand fiberglass?
Time to sand again! Once the resin and fiberglass layers have hardened, you can begin sanding. One thing to make sure of during this step is that you’re not sanding so hard as to actually sanding down too much of the fiberglass. If you do that, then the repair is essentially null and void.
How to repair fiberglass blisters?
Determine the area that needs to be repaired and remove the fiberglass. Using a marker the blister was marked where it separated from the foam. Then using a rotary tool with a cutting disc the marked area was cut out, a vacuum was used to keep the dust down while cutting. Don't forget to wear a dust mask to keep the fiberglass dust out of your lungs.
Can you use epoxy on polyurethane foam?
However be extra cautious, depending on your surfboard if you use polyester resin it will eat/melt EPS foam. You can use epoxy on polyurethane foam with no issues. When in doubt do a test first. Ask Question.
Can you use polyester resin on EPS surfboards?
If you are using polyester resin, follow there instructions. Also it is important not to use polyester resin on EPS surfboard as it will melt the foam. The epoxy was applied with a cheap disposable brush. Be sure to not leave the epoxy container alone with a lot of epoxy as the mixture will overheat.
How long does it take for a fiberglass board to dry?
It should take, depending on your weather, about 1 hour or so to dry completely. Don't remove the transparency until dry. Once dry, remove the transparency and use a fine sand paper to even out any new bumps from the new fiberglass surface. Then, voila! your board should be back to working order.
What is a ding on a board?
Introduction. So a ding is basically any noticeable blemish in the board's fiberglass covering. It usually manifests itself as a cracked windshield like fracture. It could be long and skinny (like my rail dings, typically) or short and wide (if you hit a strategically placed jagged rock).
What is delamination on a surfboard?
Delamination occurs when water gets under the glass and is then left in the sun. This is a pretty serious issue for a surfboard, but it can be repaired. Since the price was good, I contacted the seller, picked up the board and got to work. He is how I fixed it. 1.
How to fix delamination?
I’ve seen multiple ways to fix delamination, but for damage as severe as this, I determined it was best to remove the fiberglass and start from scratch. I used a marker to indicate where the fiberglass needed to be cut and then used my Dremel with a cutting blade to remove it. 2.