per square inch. 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. Epoxies are definitely a lot stronger. The only way to tell visually is if a board is super glossy. Denk aan staal, aluminium, beton, steensoorten, hout, polyester, vinylester en de meeste kunststoffen. However, you will find them lighter and stronger than standard polyester. What is Epoxy Resin 4. They're produced in countries such as Thailand, using designs created and by a master shaper. Chemical & Heat Resistant. For smaller imperfections or sticky spots, how to harden sticky resin? Ecological: Epoxy surfboards leave less contaminating substances during the manufacturing process than polyester boards. All of the professional surfers who ride our tech get their boards glassed with polyester resin; they’re accustomed to the flex of polyester resin and appreciate the added drive. 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'. Epoxy vs. Polyester. What to do if epoxy doesn’t harden, here are a few more options: If you find the entire surface sticky, you can sand this off by using some 80-grit sandpaper. Watch more How to Choose a Surfboard videos: http://www.howcast.com/videos/507780-What-Is-an-Epoxy-Surfboard-Surfboard-BasicsEpoxy resin. … https://www.surfline.com/surf-news/surf-board-epoxy-polyester/2414 Epoxy surfboards have a polystyrene foam core and are then coated with an epoxy resin. Being in the surfboard industry, we are always surprised to find out how little most consumers know about the … Epoxy hecht op vrijwel alles. An epoxy’s relative strength can hold up to 2,000 lbs. This surfboard material is three times lighter than polyurethane. So my question is, with just a hand and sight inspection, how can you tell the difference between an epoxy board and a traditional foam board? Expanded Polystyrene (EPS) blanks are used for all Epoxy surfboards, these blanks are a strong lightweight blank that offer great pop and response in the water, great for your performance surfboards. per square inch, while a polyester resin can hold less than 500 lbs. Durability - Here’s a category where epoxy is the clear winner. 2. E-glass is easy to wet our with polyester or epoxy resin and laps around the rails easily. Whiteness - Here’s another category where epoxy wins out. zzgl. 13,90 € inkl. Thank you for all you guys do at Surfline”. Either resin system on Varial Foam will handle chop better than anything else you’ve ridden. https://www.varialsurf.com/blogs/news/polyester-vs-epoxy-choosing-your-resin If it … These have long been the standard for most brands, and is the most widely and affordable options still out there. E fiberglass cloth is the most common fiberglass cloth used to glass a surfboard. Board Buckling Strength - We’ve done extensive lab testing and found no meaningful difference between the buckling strength of boards glassed with epoxy versus polyester resin. Epoxy emits 50-75% fewer VOCs (volatile organic compounds) than polyester resin. Epoxy resin is stiffer than Polyester, but as the glass fibre (E Glass or S Glass) is much more important to flex this actually has a negligible effect on the overall flex of the sandwich. It is the epoxy resin which gives this type of surfboard its name. Your one stop shop for the best Epoxy Resin systems on the market, Kinetix Epoxy. Bij polyester is vaak een voorbehandeling nodig waarbij de hechting nog vaak minder is dan die van epoxy. Illustration des … Sustainability - We use Entropy BRT Super Sap resin as our epoxy resin for all the boards we glass with our Infused Glass vacuum bag process. Unlike the wooden stringer that is always used in a poly board, epoxy's may or may not use a wooden stringer. Summary Epoxy boards are a combination of expanded polystyrene foam (also referred to as EPS), fiberglass cloth, and epoxy resin, typically resulting in a lighter and more durable surfboard! Epoxy surfboards have polystyrene foams and coated with an epoxy resin. Polyurethane blanks are also easily shaped, thus making surfboards less expensive than polystyrene since it takes less time to shape and finish each board. Basically though, fiberglass is a bit lighter and has a more matte … 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'. If that’s the case for you, you’ll want to pick epoxy resin. Epoxy is the tough resin used in manufacturing our Epoxy Models. Looks the same as a polyester resin board. The biggest … Most other surfboard manufacturers charge $100-$150 for epoxy. How do you tell epoxy from regular boards?, Well to start with look at the manufacturers logos (the “stickers” under the glass work), most reputable board builders will put the word epoxy on most or at least one of these, so READ them all first, if you find the word epoxy on any of these than it is an epoxy… as for the not so reputable boards, it can be virtually impossible for most surfers to detect an epoxy/EPS built board, and the main problem would come if you were to try and fix a ding on one of these and you get major foam meltdown as the EPS foam and polyester resin do not go together at all. 1 Answer. Resistance to Wear. The epoxy was applied with a cheap disposable brush. 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. I guess if it comes down to the purchase of a “backyard” epoxy, then you should really be aware that this type of construction is a bit trickier than polyester style construction, so unfortunately I would just warn against an “amateur” constructed epoxy/EPS board anyhow…. 1. Favorite Answer. In that case, epoxy probably has the flex you’re after. Superior Strength of the Kinetix Surfboard Epoxy System is constructed to extend the longevity of use and match the need for longer lasting boards as the standard of surfing increases. It doesn't say if its epoxy or fiberglass anywhere...Can i get some help? Lv 6. Stay informed when new boards and limited collections are released, and everything else going on at Varial! One of our most frequently asked questions is about the difference between epoxy and polyester resin in our technology. That myth most likely came about because so many epoxy resin boards are built around soft EPS cores. Prior to that for the last 40 or so years, traditional fiberglass surfboards were what the masses surfed with. Chatter- A lot of people worry that their board will chatter if they get it glassed with epoxy. Just remember that poly only sticks to poly, and epoxy sticks to everything. Cost - Epoxy resin costs more than polyester resin and therefore requires an upcharge. Especially in terms of flex and durability. It is more flexible and can snap back into shape better than polyester… Sand in between coats and wipe with alcohol for good bond when putting polyester over epoxy (not recommended on your first board). An epoxy’s relative strength can hold up to 2,000 lbs. Add to cart. Additionally, this material is more buoyant, too. Advantages: This type weighs less and it is stabler and more robust on the water surface. If the repair is critical or structural, an epoxy resin should be considered. Versandkosten Quick surf repair for small dings. per square inch. There are two common types of woven fiberglass cloth used in surfboard construction, E-glass and S-glass (or S-2 glass). When you're working with Epoxy versus polyester, basically, the durability of epoxy beats the regular PU Polyester with the fiberglass. Keep strength in mind when selecting the amount of fiberglass, but don’t worry about it for resin selection. 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. Varial Foam is compatible with both resin systems, so when getting a Varial surfboard you’ll be faced with this decision. Epoxy surfboards are laminated with epoxy resin which is stronger and lighter than polyester resin, the resin used most commonly in the surfboard industry. It became popular in 2005 since there was a massive shortage of fiberglass for board making. Epoxy will not polish as well as poly. This fact dispels a common myth that epoxy boards are stiffer than polyester boards. Surfboard construction, in the early days, was from a simple boat resin, quite dark, and only basic woven fibreglass cloths were widely available; cloths finished in two types of finish (added after weaving to attract resin to the fibres) Silane and Volan. Clean the area thoroughly and then pour another accurately measured and mixed resin coat layer. Also epoxy is lighter than polyester. Bij deze methode wordt door aanbrengen van een vacuüm overtollige epoxy uit het gelamineerde weefsel verwijderd waardoor een ideale hars/weefsel verhouding ontstaat. Epoxy emits 50-75% fewer VOCs (volatile organic compounds) than polyester resin. Our premium Polyester Surfboard Resin and Epoxy Resin is used by leading surfboard glassers all over the world. If re-coating epoxy with more epoxy, do not sand between coats if … 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. 2. Looks the same as a polyester resin board. Epoxy is two to three times more expensive than polyester resin. 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. None of the mass-produced epoxy surfboards are made in Australia. The more fiberglass you get on your board the stronger and stiffer it will be. How can I tell if my surfboard is Epoxy or Fiberglass? AMPhoto. Rough up what you've got, making sure you're back past the gel coat, and go for gold. Polyester might eat a hole in your Polystyren blank! This resin contains 21% biobased carbon content which makes it that much more sustainable than other resins. per square inch, while a polyester resin can hold less than 500 lbs. While epoxy boards are known to be better for the environment, they are generally more expensive. Epoxy Surfboards: Pros vs. Cons. 19% MwSt. If you are repairing an epoxy product, then epoxy should be used for the repair (polyester will perform poorly in this case). The purpose of this article is to make that decision easier by giving you a full rundown in a way that’s easy to digest. The surf's more stiff though, that would be the downfall of epoxies, compared to regular polyester surfboards, is that, the polyester surfboard will flex and there's more memory in the flex pattern of the polyester. It doesn't say if its epoxy or fiberglass anywhere...Can i get some help ... you the difference. Under the floor you will find two boxes that … Open-celled polystyrene is a beaded foam similar to an old-style esky, but the open cells suck up water if dinged. The natural color of Varial Foam is eggshell white. Fiberglass surfboards are less expensive due to the flexibility of the material, which makes it easier to give them a desired shape. See our range of Epoxy Surfboards on boardcave.com.au to find your next surfboard. If we have to highlight a characteristic, it´s that polyester resin without a doubt offers more flexibility. Epoxy resin (the only resin that can be used on EPS foam) is a little stronger than polyester. While Varial Foam is 100% yellow proof from sunlight exposure, some people want their new board to be as white as possible. I was very sceptical about using epoxy on PU/PE. There are two common types of woven fiberglass cloth used in surfboard construction, E-glass and S-glass (or S-2 glass). All of that added reinforcement makes the boards stiff. Since we are experts at the weather and predicting surf, not board building, we passed this question along to good friend and master shaper Brian Tudor of BAT Surfboards. Epoxy will not polish as well as poly. I've restringered more then six boats just like yours. Something that we make use of … 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 Even experts disagree over which one to recommend, classic or epoxy? 4 point bend test on sample panels with different glassing layups, each in polyester and epoxy resin. If you have an epoxy board based on expanded Polystyren (EPS) or extruded Polystyren (IX-PS, XPS), use the blue Epoxy surfboard repair kit. The core component of this board is poly or polyester resin. Don’t worry about chatter when designing your board. In the case of extreme conditions, epoxy will yield superior results. For standard operations, polyester resin will fit your requirements. If you buy your custom through our website the upcharge is $70. If you have no idea, see the differences below. We offer three polyester resins for surfboard work, laminating resin, UV cure resin, and gloss resin. Watch more How to Choose a Surfboard videos: http://www.howcast.com/videos/507780-What-Is-an-Epoxy-Surfboard-Surfboard-BasicsEpoxy resin. These have long been the standard for most brands, and is the most widely and affordable options still out there. 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. However, you will find them lighter and stronger than standard polyester. Instead, many EPS boards use either a dense stringer material (typically PVC) that … E fiberglass cloth is the most common fiberglass cloth used to glass a surfboard. Do not apply warm resin … Epoxy or Polyester? 1 decade ago. We performed controlled 4-point benchtop tests to answer that question. Compsand could be made with a stringer if you wanted but don't really need them. La résine époxy est la seule résine qui puisse être utilisée sur la mousse EPS. Fire Retardant (Class 1 & 2) Fire Retardant (Class 1) Fire Retardant (Class 2) Vinylester Resin; Vinylester Resin (Atlac 580) Low Cost Resins. However, you might not be charging powerful North Shore waves and instead looking to get the most zing out of your turns in average conditions. 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'. Low-Cost Resins. Not only is epoxy resin lighter than polyester, but less is needed per coat. You may also want to check the stringers as I have never seen that model and year that didn't have bad stringers and white foam under the floor that weighed about two or three hundred pounds being full of water. We leave this video for you where we sum up the advantages of epoxy boards and PU boards. Epoxy surfboards started to become popular in the 1990's. https://www.facebook.com/Varial-Surf-Technology-216320178391519/, https://www.instagram.com/varial_surf/?hl=en. You can try some resin spray, which dries quickly leaving a … Do-it-yourself Surfboard Repair products by Ding All. Epoxy is known for its higher bonding capabilities overall. Epoxy is known for its higher bonding capabilities overall. If your not sure call the shop on 018907 71679 and we can advise what repair kit would best fix your surfboard. In dit artikel leggen wij je stap voor stap uit hoe je een surfplank gemaakt uit geëxpandeerd polystyreen (EPS) en kan bekleden met koolstofweefsel door middel van de vacuüm wetbagging techniek. Polyester is cheaper and easier to work with then epoxy. Answer Save. If you get any epoxy drops on a sealed shiny surface then it is usually possible to get it off. Epoxy resin is considered to be more durable, more flexible, and even a bit lighter than polyester resin, which was the standard in surfboard construction for nearly 70 years. We’ve worked closely with them over the past few years to dial in this resin system for our Infused Glass process. We offer three polyester resins for surfboard work, laminating resin, UV cure resin, and gloss resin. Epoxies are definitely a lot stronger. Polyester boards, on the other hand, are recommended for good surf condition (now wind). Epoxy Vs. Fiberglass: An Overview. What is Polyester Resin 3. E-glass is easy to wet our with polyester or epoxy resin and laps around the rails easily. 4 oz. Relevance. How can I tell if my surfboard is Epoxy or Fiberglass? Not only is epoxy resin lighter than polyester, but less is needed per coat. My fish I shaped has a standard Clark blank with epoxy resin. The rigidity of the Varial Foam core will cut through chop much better than any other type of surfboard foam. Under most circumstances, resin makes up a large part of a completed board’s overall weight. 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. Below, you will find out why epoxy used with EPS is better than a normal Polyester/PU pair. Polyurethane surfboard blanks can be glassed with either polyester or epoxy resin, making it versatile in terms of giving riders more options. Polyester vs Epoxy. Since we are experts at the weather and predicting surf, not board building, we passed this question along to good friend and master shaper Brian Tudor of, Partner of USATODAY Lifestyle/Action Sports. I would observe that you shouldnt have too many problems using epoxy to bind to cured polyester but … Epoxy resin is stiffer than Polyester, but as the glass fibre (E Glass or S Glass) is much more important to flex this actually has a negligible effect on the overall flex of the sandwich. Epoxy boards are a combination of expanded polystyrene foam (also referred to as EPS), fiberglass cloth, and epoxy resin, typically resulting in a lighter and more durable surfboard! 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. Epoxy Surfboard Resin; Super Sap CLR Epoxy Surfboard Resin; Super Sap BRT Epoxy Surfboard Resin; Super Sap CLF Fast Hardener ; Super Sap CLX Extra Fast Hardener; Xtreme Surfboard Resin. When the boards were sanded with course grit then the epoxy appears to have a very good bond and could only … How much more flex? A few rules of thumb if you don’t have a lot of experience with this type of construction; the EPS can have a texture to it, so look for small veins or round looking beads under the glass, as for the Dow brand foam, which does not have a “bead” structure to it, look for breather holes in a symmetrical pattern down the deck rails, the guys using the Dow stuff ALWAYS clearly mark them epoxy on their logos, so unless you cannot read than you’ll be ok. Side by Side Comparison – Polyester Resin vs Epoxy Resin in Tabular Form 5. While epoxy boards are known to be better for the environment, they are generally more expensive. Those cores require more glass, carbon fiber and often high-density sandwiched foam sheets to be strong enough to surf. However, the main reason we use Entropy resin is because it’s an excellent resin system designed specifically for performance surfboard applications. Flex - Polyester resin is a stiff resin system and epoxy is more flexible. Kinetxi Epoxy REsin Systems gives surfbaord shapers the following benifits: Ultra White Mixes, Blends with Resin Tints and Pigments, Rapid Room Temperature Cure, Bloom-Free Finish, Excellent Adhesion to Polyester Filler Coats and Solvent Free . Epoxy resin is very resistant to osmosis, so it is the best choice for yachting applications, especially for parts under water. per square inch. Buying surfboard repair kits can be a bit confusing, as to what you need for your surfboard whether your surfboard is polyester or epoxy construction. 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 . Desi and the crew provide us with excellent customer service and technical support. Epoxy surfboards are laminated with epoxy resin which is stronger and lighter than polyester resin, the resin used most commonly in the surfboard industry. POLYESTER MIRCROFILL UV CURE TUBE. An epoxy’s relative strength can hold up to 2,000 lbs. If you want the ligh This can make for an enormous difference when lugging your surfboard down the beach or over the rocks to get in the water. Polyester Resin has ruled the industry for decades – for nearly 80 years Polyester Resin has been used to make marine craft of all types. Under most circumstances, resin makes up a large part of a completed board’s overall weight. An epoxy surfboard is made using a polystyrene core and is then coated with an epoxy resin. The Resin and Hardener (and blank) must also be kept at the recommended elevated room temperature for 24 hours or more. Polyurethane surfboard blanks can be glassed with either polyester or epoxy resin, making it versatile in terms of giving riders more options. Polystyrene is a better choice of material if you want to have an eco-friendly board. Do boards lose performance over time even if they are water tight? Also it is important not to use polyester resin on EPS surfboard as it will melt the foam. Resistance to Wear. See our range of Epoxy Surfboards on boardcave.com.au to find your next surfboard. Epoxy is the tough resin used in manufacturing our Epoxy Models. To make it blindingly-white put in a special request to upgrade your fiberglass to S Glass. That’s not the case. It's really a matter of personal preference and depends on your riding style. “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). If you want the ligh Typically, the shop owner will offer you between the epoxy surfboards and fiberglass surfboards. How To Glass A Surfboard using Epoxy Resin: Make sure the room working temperature is around or above 24º C. Your board should be left clean, and untouched at the same room temperature for 24 hours before glassing, to avoid gassing. Environmentally friendly…with no compromise on performance. If your not sure whether your up to fixing your surfboard yourself, again ring the shop for advice on how to fix your surfboard … Most widely used fibers include glass and carbon fibers. However, the lightweight epoxy surfboard is easier for the surfer to carry. They both cure with a surface tack so that subsequent layers can be added without sanding first. Key Difference – Polyester Resin vs Epoxy Resin Polyester resin and epoxy resin are two widely used polymer matrix materials, especially in manufacturing of fiber composite. It is also considered as the traditional surfboard. There is a way to tell, but I cant remember it off the top of my head. Elle est un peu plus résistante et plus flexible, ce qui lui permet de mieux reprendre sa forme que le polyester qui est un peu plus fragile et peut entraîner des fissures. How To Glass A Surfboard using Epoxy Resin: Make sure the room working temperature is around or above 24º C. Your board should be left clean, and untouched at the same room temperature for 24 hours before glassing, to avoid gassing. EPS Foam + Epoxy Resin Surfboards. I get all my boards glassed with epoxy for this reason. Meanwhile, the epoxy is the hard kind of adhesive. So which is the better resin to use? The cost will be based on the exact dimensions and layup schedule of your board. Additionally, these boards also float better compared to fiberglass boards. This ends up meaning a much lighter surfboard – a big plus for most surfers. However, I have been banned from using polyester resin where I live, so it was epoxy ding repair or no ding repair. Unlike the wooden stringer that is always used in a poly board, epoxy's may or may not use a wooden stringer. The high bonding strength of epoxy combined with its increased flexibly makes it much more resistant to everyday wear-and-tear dings. If you’re like me and clumsy with your surfboards the added ding resistance of epoxy will pay off. Also, when it comes to shock absorbing abilities, it is the fiberglass surfboard that wins hands down. Nothing is more frustrating that dreaded secondary click you hear when you accidentally smack your board into something. The only way to tell visually is if a board is super glossy. This is not the case with Varial Foam, which makes boards 40% stronger than traditional surfboards and does not require a stringer or other stiff reinforcements. Epoxy resin (the only resin that can be used on EPS foam) is a little stronger than polyester. Be sure to not leave the epoxy container alone with a lot of epoxy as the mixture will overheat ; Using a cheap brush, apply a coat of epoxy to the repair area, use a generous amount. The R104 offers superior strength to conventional epoxy systems on the market, … The surf's more stiff though, that would be the downfall of epoxies, compared to regular polyester surfboards, is that, the polyester surfboard will flex and there's more memory in the flex pattern of the polyester. 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. *This post originally appeared on the Surf Science blog on Surfline.com, 5/20/2009. Another option is to put a sheet of 6mm aluminium on the outside of the well. Surfboard designers have come up with this material last 2005. Easylam Polyester … Because surfboards are much more than length, width and thickness. It’s rare to find a sustainable material that also has best-in-class performance, but Entropy has accomplished just that. So what flex is best? For WAVE-, WIND-, KITE-, and SUP Surfboards. EPS Foam + Epoxy Resin Surfboards. At 100 degrees, epoxy can catch fire (it happened to me)! Unless stated otherwise, in this article we’re only referring to surfboards made with Varial Foam cores. per square inch, while a polyester resin can hold less than 500 lbs.