So! A question about the hardness of cured ceramic compound has come up from another guy on the forum who just poured a transom also, saying
"it is supposed to be as hard as a rock and you can’t drive a nail into it”.
His is not. Mine is not.
Now I figured that, as a core material, it would not be that hard.
There is no official info about it on Carbon-Core's site or Arjay's site
I have a hockey puck shaped piece that I made in a measuring cup during my pour.
It is dry. Not tacky.
It seems solid to me but it can be easily screwed into, easily drilled, and while I can’t get a finish nail into it, a cement shingle nail goes in readily. It does not split or chip at the nail hole.
The edges can be shaved and the shavings hold together somewhat.
I drilled the drain hole in the transom with a 1 inch spade bit and it was like smooth fine grained wood.
It is not brittle and it certainly is not “hard as a rock”.
The transom itself is solid, no flex with my 200 lbs jumping on it.
It got really hot so it definitely kicked and it is not tacky.
Before I glass everything back together and hang a 429 lb motor on it, can anyone with first hand experience set my mind at ease (hopefully) or tell me not to put the motor on without more life insurance.
