how to tell if surfboard is epoxy or polyester

It's really a matter of personal preference and depends on your riding style. If you’re contemplating some major build or repair projects involving fiberglass this summer, then you are probably trying to decide whether it is worth the added expense of using epoxy instead of polyester resin. La résine époxy est la seule résine qui puisse être utilisée sur la mousse EPS. This means that a polyester resin board will have a little more stiffness and drive while an epoxy resin board will have slightly more flex and pop. Watch more How to Choose a Surfboard videos: http://www.howcast.com/videos/507780-What-Is-an-Epoxy-Surfboard-Surfboard-BasicsEpoxy resin. No chafe, no drawstrings, no drag -- all performance, Keith Teboul fused windsurfing, SUP and foil boarding design with new tech to create Lenny’s new guns, Akila Aipa and the GOAT refine an antiquated favorite into a postmodern marvel: the 'Flat Earth'. Epoxy surfboards kicked off in the 1990s, but really gained in popularity after the closure of the Clark Foam factory in 2005, which was a huge supplier of the polyurethane blanks for the fiberglass board. PU as a construction refers to a surfboard built from a Polyurethane blank with Polyester resin, whilst PE refers to a Polyurethane Blank with Epoxy resin. Because surfboards are much more than length, width and thickness. Environmentally friendly…with no compromise on performance. S Glass fiberglass is 42% stronger than E Glass and also 24% stiffer, so changing the cloth will definitely have performance and strength implications for your board. Those cores require more glass, carbon fiber and often high-density sandwiched foam sheets to be strong enough to surf. We offer three polyester resins for surfboard work, laminating resin, UV cure resin, and gloss resin. There is a way to tell, but I cant remember it off the top of my head. Overview and Key Difference 2. Laminating resin and UV cure are the same base resin, UV cure has a curing agent added to it that causes the resin to cure when exposed to UV light, more on this below. This resin contains 21% biobased carbon content which makes it that much more sustainable than other resins. https://www.varialsurf.com/blogs/news/polyester-vs-epoxy-choosing-your-resin I've restringered more then six boats just like yours. Epoxy has far greater adhesive properties than Polyester which makes delamination less likely and also is rumoured to have a slightly greater impact resistance, making it less likely to crack if 'bumped'. The best idea would just be to go to a surfshop and have them show you the difference. The Resin and Hardener (and blank) must also be kept at the recommended elevated room temperature for 24 hours or more. Polystyrene is a better choice of material if you want to have an eco-friendly board. If you want the ligh Unlike the wooden stringer that is always used in a poly board, epoxy's may or may not use a wooden stringer. Also it is important not to use polyester resin on EPS surfboard as it will melt the foam. One of our most frequently asked questions is about the difference between epoxy and polyester resin in our technology. All of that added reinforcement makes the boards stiff. Add to cart. Our premium Polyester Surfboard Resin and Epoxy Resin is used by leading surfboard glassers all over the world. Under most circumstances, resin makes up a large part of a completed board’s overall weight. Not only is epoxy resin lighter than polyester, but less is needed per coat. Epoxy is the tough resin used in manufacturing our Epoxy Models. If your not sure call the shop on 018907 71679 and we can advise what repair kit would best fix your surfboard. Typically, the shop owner will offer you between the epoxy surfboards and fiberglass surfboards. The question is: How do I choose? Epoxy surfboards have a polystyrene foam core and are then coated with an epoxy resin. Epoxy resin is very resistant to osmosis, so it is the best choice for yachting applications, especially for parts under water. As with anything new there have been many discussions over the benefits and downsides of an epoxy surfboard. The high bonding strength of epoxy combined with its increased flexibly makes it much more resistant to everyday wear-and-tear dings. Open-celled polystyrene is a beaded foam similar to an old-style esky, but the open cells suck up water if dinged. Putting on my very old hat as an adhesives Chemist- as far as I can remember there is no quick and dirty test to tell the difference, Once the resin is bound into matting and pigments etc are added this would only make the test more difficult without using a FTIR or the like . The rigidity of the Varial Foam core will cut through chop much better than any other type of surfboard foam. “So i just bought a board from craigslist (love craigslist) and the guy said it was epoxy, when he showed it to me I wasn’t sure how to tell the difference to see if it was really epoxy or not, I tried tapping and listened to the sound just to make sure the guy at least thought I knew the difference (although I don’t think I really needed to try to impress him because I spotted wax on the stomp pad). They both cure with a surface tack so that subsequent layers can be added without sanding first. Epoxy is a bit more expensive than polyester, but typically you need to use less epoxy when glassing a surfboard than polyester, so the cost nearly evens itself out, while the benefits of epoxy are substantial. Additionally, these boards also float better compared to fiberglass boards. Epoxy Surfboards: Fiberglass Surfboards: Material: Common name for polystyrene: Common name for polyurethane: Flexibility: Stiffer and difficult to shape: Flexible and easier to shape: Affordability: More expensive: Less expensive: Effect of Water: Does not get damaged by the effect of water: Gets delaminated by the absorption of water over time: Durability Under the floor you will find two boxes that … The only way to tell visually is if a board is super glossy. Resistance to Wear. That myth most likely came about because so many epoxy resin boards are built around soft EPS cores. EPS Foam + Epoxy Resin Surfboards. Also epoxy is lighter than polyester. CONTENTS. Epoxy Vs. Fiberglass: An Overview. Low-Cost Resins. We’ve been building Epoly boards for years and with more and more positive feedback we feel it’s the optimum direction for resilient yet affordable surfboard construction. The only way to tell visually is if a board is super glossy. The difference between polyester resins (used to be commonly used in surfboards) and epoxy resins: Polyester resins are toxic, have very strong fumes, are more porous than epoxy resins, brittle, and only sticks really well to itself. Epoxy hecht op vrijwel alles. None of the mass-produced epoxy surfboards are made in Australia. These have long been the standard for most brands, and is the most widely and affordable options still out there. Just remember that poly only sticks to poly, and epoxy sticks to everything. Epoxy resin (the only resin that can be used on EPS foam) is a little stronger than polyester. If you buy your custom through our website the upcharge is $70. Another option is to put a sheet of 6mm aluminium on the outside of the well.

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