Originally Posted by Sim79
ETM all the cutting is done, I have to remove the 5mm off wood. You said that you used a grider. Everytime I have used a grinder near wood it burns the wood and smokes badly. How did you avoid this? And close were you removing the wood from the board base and top? There isn't any room for error especially with a grinder!
I did use a grinder with a 1mm cutting disc taking off very small amounts at a time, yeah it will smoke a bit but thats ok. You need to get all the wood out, go till you see the fibreglass layer under the top sheet and the base (wear a dust mask and safety glasses obviously)
If you are worried just use a spar urethane and paint it on the wood like people do with splitboards