Temperature tolerence

EPS/epoxy is much more sensitive to heat than pu/pe.

 

O Barry I was referring to the Puerto Ricans who work the busteling blocks of Lehigh, Allegheny and you can't forgot Rising Sun

Hey Barry don't be misguiding the youth on these here surf predictin' forums

All real surfers do drugs

 

your point of reference?

 

Especially the ones that die young, very young.....

 

Not sure what you're asking, but I've seen epoxy boards (not comp sands... regular hand lam) do weird stuff in extreme heat. Bubble... ripple... warp... It has to do with the foam... eps melts at about 140 degrees. Epoxy, if it's not fully post-cured, will get soft and easily deform under high heat as well.

Found this on the Harbor Surfboards site:
They are stronger, both in impact and breakability. They are at least 10% lighter, which makes turning much easier. However they do not withstand heat very well. EPS foam actually begins to melt at 150 degrees. This temperature can easily be met in just a few minutes with a dark colored board left in the sun. No breather vent will prevent over heated foam from melting. With the weight of EPS foam that we use I don’t see an issue with delaminations. A vent might help reduce the possibility of delaminations, but the BEST solution to any heat related problems is to never leave any surfboard (polyurethane or EPS) exposed heat that will get the surface to more than 120 degrees. I have seen many polyurethane boards delaminate from excessive heat. Putting it inside of a car is not the answer, as you would not do this to your child or pet for the same reason you should not your surfboard. If there is simply no place with shade, the only option is a board bag. Dark colored bags only collect heat, making matters even worse and are not acceptable. Board bags are like ovens, they do not insulate from the heat, but collect it. Now being sold is a great bag that has a side vent that allows the bag to breath. Every surfer should own one. However I am still not comfortable with even a vented bag as the complete remedy for heat. It should only be used when you just cannot go home, or there is no shade. If you will treat your surfboard as if it were a newborn baby, you will never have any problems.

 

Hey Dude, if it's hot it might get damaged.


Not sure about epoxy- but when you mix resin and catalyst together to glass a board- it creates heat during the chemical reaction (try adding a little too much catalyst and touch the outside of the container your mixing it in!) anyways- adding hear after is cures will have an adverse effect on the chemical reaction.

Heat is bad.

There is this old suv parked down the street from me for over a week - with a board in it. No tinted windows. I'm guessing the wax is a mess by now- all over the car... And the board will probably be toast in another day...

 

By far the worst case of heat-induced damaged I've experienced in any board (including many poly boards) was a EPS/Epoxy Patagonia egg. Actually it was the only board I've owned that I thought got damaged by heat. I'm convinced it was heat, because I did leave in exposed to the sun in the back of a pickup truck and on a large section of the bottom that was exposed to the sun, the foam and glass weren't just delaminated, the board was straight up distorted looking...kind of like sitting a plastic cup too close to a source of heat...the glass was rippled and soft!

 

Yeah my epoxy board came with a warning not to leave it in direct sunlight.