question involving transom core

[highstrung]

I have a 20 seacraft 86. I recently purchased a new engine (newer) . Before i go ahead and put the engine on i decided to have my transom rebuilt. i found a guy that is going to do the job for me. from reading through pages of transom rebuilds on this site i am comfortable with the approach he is taking on the re build. only thing im hesitant of is that he said he was going to use one inch thick expandable pvc board as the coring. Has anybody ever heard of this being used for a transom? Also he mentioned placing three seperate pieces in compared to one solid piece. Then glassing them together after being fibergalssed to the inner skin.

[edloh]

correct as long as he uses the correct demsity core. i end up using fiberglass imprenated fom core on my 23 for extra strengh.

[Caymanboy]

Personally I wouldn't use PVC board in that application. Doesn't really have the strength, compression properties I look for.
Laminating three pieces together to form one is fine as long as each piece is bonded together properly.
Just my 2c worth.
OP

[Lordwrench]

Silly question,was there anything wrong with your factory transom?

[highstrung]

Thank you for the feed back . Cayman boy . What do you think I should recommend the guy putting in back there if I'm not sure i want to replace it with the plywood core? Also lord wrench . Yea it was time. The skin was delaminated from the core and the wood that I could reach by poking my finger through where the engine bolts were is mulch.

[Caymanboy]

I use Coosa Board. Doesn't change the labor cost, but it is 5 or 6 times more expensive material.

[Lordwrench]

is it one full sheet of coosa per layer for a 20?Three one-half inch layers is better than two thicker layers?

[Caymanboy]

Depending on how you are doing the transom, you should be able to get two pieces out of one sheet. That being said, could be a combo of 3/4" and 1/2" or just 3/4".
I apply a layer of glass between the boards. Might be overkill, but I haven't had one come back, yet. :-)

[Islandtrader]

"Just remember wood is not the enemy" I think that quote is from Strick.

Plywood is always a good economical choice.

[strick]

Originally Posted by Islandtrader

"Just remember wood is not the enemy" I think that quote is from Strick.

Yes wood is our friend....always

strick