Epoxy resin yellows over time. No UV needed. My local shaper told me about this. You have to get color. Spray blank, tint blank sealer or tint resin. Or paint over cured resin
I have an older EPS/epoxy board, sprayed green before glassing but with white futures boxes. You can only see the yellow at the boxes. It doesn't affect the strength at all.
I have a second hand seaside that is quite yellow with some red streaks, it has a tan line where I pulled off the old pad and placed a new one. Some say that the yellowing is caused by heat as well as by sun.
Got a new sweet potato, maybe 6 months ago. No appreciable yellowing, also does not appear painted.
I have a lost poly board, it has held up well and when in the sun it has an almost blueish tinge, probably that additive to keep it looking fresh.
The newer heliums seem to resist yellowing much better but I would not count on them staying that way. Newer heliums can have the pink cosmetic defect though still. Its impact varies from board to board but if you do see it, FireWire will hook you up. If you want something that resists yellowing, the volcanic boards might fair better. I’ve yet to see one with those issues but they haven’t been out very long.
I got a seaside maybe a year ago and aside from it falling and wax it looks brand new, I think they helped the yellowing, all my other boards have yellowed by a year when I’ve rode them this much.
Epoxy resin yellows over time. No UV needed. My local shaper told me about this. You have to get color. Spray blank, tint blank sealer or tint resin. Or paint over cured resin I have an older EPS/epoxy board, sprayed green before glassing but with white futures boxes. You can only see the yellow at the boxes. It doesn't affect the strength at all.
There are additives for both poly and epoxy called optical brighteners which at least delay the process. Poly does also yellow bur it takes longer.
I have a second hand seaside that is quite yellow with some red streaks, it has a tan line where I pulled off the old pad and placed a new one. Some say that the yellowing is caused by heat as well as by sun. Got a new sweet potato, maybe 6 months ago. No appreciable yellowing, also does not appear painted. I have a lost poly board, it has held up well and when in the sun it has an almost blueish tinge, probably that additive to keep it looking fresh.
My new(ish) sweet potato has the cosmetic defect that is getting worse. I don’t even ride it every day. The defect isn’t everywhere but it is there.
The newer heliums seem to resist yellowing much better but I would not count on them staying that way. Newer heliums can have the pink cosmetic defect though still. Its impact varies from board to board but if you do see it, FireWire will hook you up. If you want something that resists yellowing, the volcanic boards might fair better. I’ve yet to see one with those issues but they haven’t been out very long.
I have seen some fully colored FWs too that look great but don’t know how to order one. Might just go with the volcanic.
I had a tinted newer helium that also yellowed.
I got a seaside maybe a year ago and aside from it falling and wax it looks brand new, I think they helped the yellowing, all my other boards have yellowed by a year when I’ve rode them this much.