I recently shaped a mid-length for a surf trip. After surfing it only 4-5 times, it seems like I am getting some pretty good pressure dings where I hold the board to duck dive. The board is glassed with Resin Research epoxy and it feels like it is pretty soft on the deck. I did glass it with 4oz. cloth but I did not expect it to be this soft. I glassed it on January 21st, finished sanding and everything by February 4th and it was in the water by February 22nd. A month seems like plenty enough time for the epoxy to cure so I don’t really understand what the problem is. Can it simply be the fact that there is a lot of volume to push on when I duck dive? what do you guys think about this problem?
Just one layer of 4oz cloth? If so that would be my guess
Foam density ? Glass schedule ? Seal blank ? How you do the mix, by volume or by weight? How long you mix?
There is many way to make an eps epoxy board. Many epoxy board i see (and repair) are ultra light, ultra soft and fragile, often good feel to surf before it crease or be full of water. Expensive shit.
it is two layers but the first one is like 3/4 of the deck. it does finish right where my hands are placed so the pressured area has one layer
What is your blank density ?
On standard 2lb eps for a shortboard you need at least 6oz under and 6+4oz over with good laps so you have around 18oz under your hands where you push for duckdive. For heavier powerful surfer need more. I only use 1.5lb eps now and i have at least 22oz glass on rails.
Typically you put one layer on the bottom and multiple layers on the deck. The deck takes all the abuse. A double 4oz. deck will dent like crazy. Knees, elbows, heels. Single layer of 4oz is worse. A 6 and 4 full deck is best. Single 6 or 4 on the bottom. Doesn’t matter if it’s Poly or EPS. I haven’t watched the Greg Loehr glassing video in awhile, but I think he did 3 layers of 4oz on the deck.
Hence at least 3 layers of glass on the rails. And epoxy will always be more flexible than poly, its the nature of the beast. IMO