I was recently given a cedar square stern canoe that had been stored for an unknown period of time. At this time I am trying to remove an old and poorly applied fiberglass job. The matting was able to be pulled off but the majority of the resin remains bonded to the wood. Does anyone have a suggestion on how to remove the remaining resin material from the wood without excessive sanding? The cedar planking is 5/32". I've had limited success with a heat gun but it doesn't remove the resin that soaked into the wood.