When my Paradox build began a sheet of half-inch marine was $80. Now it's upwards of $120!
While put buying hardwood to repair my daugter's horse float yesterday I had a yarn with the salesman about plywood. Hos prove was "$130 or more" and went on to suggest CD grade. So to reassure myself about it's qualities I asked. He said: "They used the same glue. Marine has two good faces of grade timber veneer. CD has just one good side". He reassured me that if it was going five to be epoxy coated inside and out, if you didn't mind slight imperfections, then it was a no brainer. CD grade it is, as soon as this rain eases.
CD and Marine Ply?
Before I took a long hiatus from building I had already prepared two of the four hull plates from Marine Ply. Subsequently the price of marine ply doubled and I deided to go CD.
I think I avoided major hassles by NOT blending the two types of ply on the hull. The Marine Ply is heavier and stiffer that the CD and the two would therefore flex differently and possibly weaken the scarf joint. Don't want that!
Reminded of an incident in my teen years. A "mate" took a liking to one of my surfboards and used to take it out whenever Ai wasn't about. One morning after qwaiting for him to bring my board back , he rocks up with a big grin "Sorry I dinged your board, but me and my dad fixed it ". I was astonished to see that rather than use straight fibreglass he had cut around the damage and fitted in a block of wood. I recall thinking it looked crap, but went surfing anyhow. The board snapped right through where the timber plug had been. Lesson: don't mix materials.
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