Given the age of the board, not worth spending that money.

Anything from covering the crack WELL with strong waterproof cloth tape, to filling it with epoxy resin, to a proper repair, could all be done by yourself. And all work.

Try boardlady.com.

But grinding it out a bit, filling with epoxy resin and q-cells and then sanding it would cost you $30 and a weekend.

Your responses gave me enough confidence to choose the diy method

I am a bit confused about what materials I need to start repairing my board. Does the material in the interrior of the board (carbon in my case) define what materials I have to use to repair it (should I use carbon or fiberglass?)? Or is it irrelevant?So to just check if I got it right. I need to grind everything around the affected area out and then using q cells and epoxy resin i will fill the dent and I will cover everything with a coat of fiberglass and epoxy resin?

You really NEED, EPOXY resin. Other resins may melt the core foam.

I don't see any carbon in those cracks, just because the board says it's carbon construction doesn't mean it's all carbon. The carbon may just be where it's really needed.

To repair your damage, you need, fiberglass cloth, epoxy resin and some sort of filler material (Q-cell, micro balloons, or similar) to convert the epoxy into a thick paste for filling afterwards.
There will be more damage to the core foam under those cracks. You can see the compression on top has forced the bottom to crack, so there been a lot of movement there that's sprung back a bit.
I'd sand the paint off the top dent so you can check the condition of the cloth on top, if there's no cracks there, and you don't want the dent, you can fill that with a thick mixture of q-cell and epoxy.
The bottom is more serious as the whole sandwich is damaged. The sandwich consists of high density foam with cloth on either side of it.
As Imax says, to restore it's structural integrity, you need to carefully remove the damaged high density foam, until you find the interior layer of cloth that's undamaged and still adhering to the core foam, then very carefully remove some more. I don't think you need 20mm of good underlying cloth showing, half that is probably adequate.
Then you need a layer of cloth in the hole, overlapping the good old interior cloth, ideally some more high density foam, but this will probably be too hard, a stiff mix of q-cells will do. When that's set, sand back smooth including 10-20mm of the outside paint, and whatever you did to the top. Then apply another 2 or 3 layers of cloth over the whole lot. If you've got some thin stretchy plastic you can stretch this over the repair pulling as tight and as smooth as you can over the repair with good adhesive tape. this will smooth the repair out, leaving you less filling to do afterwards.

Ok , everything you do is inside the board. Don't grind . Make big enough cut at front of board to get in. Relax ! It doesn't matter what the board is made of , it is apoxy based. Use the original outside shell. Carbon or fibreglass is the same. Carbon is just a fancy fibreglass. Make enough room inside the shell to fill with resin ( epoxy 2 part glue ) and fibreglass cloth. Job is done.

Hey decrepit , I over engineer , as I'm an engineer ,

Imax1 said..
Ok , everything you do is inside the board. Don't grind . Make big enough cut at front of board to get in. Relax ! It doesn't matter what the board is made of , it is apoxy based. Use the original outside shell. Carbon or fibreglass is the same. Carbon is just a fancy fibreglass. Make enough room inside the shell to fill with resin ( epoxy 2 part glue ) and fibreglass cloth. Job is done.

I use would use Imax1 method, very easy, use duct tape/electrical tape over the repair, until the epoxy has cured/dried to keep the glass below the level of the existing laminate, fill with car filler, sand and then paint.

I try and push the glass about 1cm UNDER the existing laminate with a thin knife, so that the new glass bonds to existing laminate. Be careful as sometimes the nose has a thicker part of the laminate, that may be difficult to cut, careful of your fingers or making a mess of the existing good laminate. DONT use polyester resin for the glue.

Imax1 said..
Ok , everything you do is inside the board. Don't grind . Make big enough cut at front of board to get in. Relax ! It doesn't matter what the board is made of , it is apoxy based. Use the original outside shell. Carbon or fibreglass is the same. Carbon is just a fancy fibreglass. Make enough room inside the shell to fill with resin ( epoxy 2 part glue ) and fibreglass cloth. Job is done.

Well I'm thinking what happens next time there's a nose impact. Yes your method will fill and seal the hole, but any impact will just knock all that epoxy straight out the bottom. You need overlapping cloth over the top to help stop that. Give it a bit more impact resistance.

First let me say that I find it super cool getting help from people from so far away Imax ,unfortunately I missunderstood your first message and I grinded the area. Now it looks like this


So in the following pic I have marked the area of the dent. I have to fill this one with a mix of q cells and epoxy resin and afterwards put some layers of fiberglass and epoxy resin on it, grind it and paint it. Right?



In the following pic I have marked the crack. Do I need to remove the fiberglass in this area so I can fill it or can I just fill the crack and maybe put a layer of fiberglass on it? Like she did here: boardlady.com/repairbasics.htm ?

Maybe I am a bit too analytical but its because this is my only board and I want to make sure I will not do any mistakes.

Ok , now that you have ground the board it is hard to tell how much skin is left. You will have to cover the outside with fibreglass as the board lady suggests. Originally I was thinking about minimal disruption to the board , like keyhole surgery and only fixing up the black area and living with the dent on the purple area. Take your time and make sure it is solid before painting. Good luck.

decrepit said...
Beat me rider. you're obviously much quicker on the keyboard than I am.

I only beat you as I kept my answer brief, I think yours is a better answer as its more detailed.

Iason1993 said..
First let me say that I find it super cool getting help from people from so far away >>>

Well you are on an Aussie site, generally we're a fairly helpful people.