Hello everyone, first off let me say I have been roaming swaylocks for a while now and I love the info you guys are giving out. My name is Chris and I have been shaping for a couple of years. I have only shaped polyurethane blanks with poly resin for local guys and myself, but recently I have come across a boat load of 2lb EPS foam and a buddy of mine just gave me 5 gallons of Resin Research. I am going to shape them all for my quiver with no stringers and use them as junker boards for trying new tricks. My question is: since the foam I have is only 2 1/2" thick and I am looking to get at least 4" of entry rocker and around 1 1/2" - 2" exit rocker, if I weigh the nose and tail down with some weights as I seal the blank with resin will that hold my rocker in place for lamination? I have looked up past posts about setting rocker, but i did not see anything about setting the rocker with weights. Thank you for the advice in advance. Chris.
Why not glue in stringers? It’s not that difficult… and you’ll have a better product.
Why not glue in stringers? It’s not that difficult… and you’ll have a better product.
Yeah, I thought about it, but i’m not too concerned with the strength. I only weigh 145 lbs soaking wet and would rather have a weaker board that is lighter.
No the sealing won’t hold the rocker! And don’t forget that you need to shape your blank before sealing!
Stringer is needed to make the rocker. You can also glue 2 plates on top of eachother that will hold the rocker too.
There’s a lot of threads about gluing multiple sheets of EPS together to get thicker blanks and on using a rocker table to set your rocker while vacuum bagging your skins.
If you want to experiment and have a few boards you’re not worried about breaking check out the sandwich skin threads and ‘fridge style’ vacuum pumps. Then you won’t have to worry about breaking them because they’ll be stronger than your poly boards.
Thank you all for the info. My good friend just stopped by and dropped another 5 gallons of epoxy and said it was AeroMarine Epoxy 300/21. I couldnt find too much about it, will it work better than the Resin Research? Any more help will be greatly appreciated. Thanks again, Chris.