Surfboard Construction Makes A MASSIVE Difference - EPS vs Poly - Which Is Right For You?
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- เผยแพร่เมื่อ 24 ก.ค. 2024
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Understanding the differences between EPS (Expanded Polystyrene) and Poly (Polyurethane) surfboard constructions is crucial. We dive deep into the contrasting characteristics of EPS and Poly surfboards to help you make an informed decision when choosing your next ride.
We explore the unique properties, performance factors, and construction processes of both EPS and Poly surfboards. Discover how these materials affect your surfing experience, buoyancy, maneuverability, durability, and overall board performance in different wave conditions.
Throughout the video, we'll discuss the following key points:
1️⃣ Material Composition:
-EPS: Learn about the lightweight and buoyant nature of Expanded Polystyrene foam and its impact on board characteristics.
-Poly: Explore the traditional Polyurethane foam and its influence on the board's flex, strength, and responsiveness.
Performance Factors:
2️⃣ Speed and Planing: Uncover how EPS and Poly boards interact with the water surface and affect your speed and planing capabilities.
3️⃣ Maneuverability and Control: Discover how the board's construction impacts maneuverability, responsiveness, and control while riding waves.
4️⃣ Durability and Repair:
-EPS: Delve into the durability aspects of EPS boards, including their resistance to dings, compressions, and impacts.
- Poly: Understand the repairability and maintenance considerations associated with Polyurethane boards.
5️⃣ Wave Conditions: Discover which type of construction suits different wave conditions, such as small mushy waves, big hollow waves, or everyday beach breaks.
6️⃣ Skill Level and Personal Preference: Understand how your skill level and personal preferences can influence your choice between EPS and Poly surfboards.
Whether you're an avid surfer looking to upgrade your quiver or a beginner ready to catch your first wave, this video will provide you with the knowledge and insights you need to make an informed decision when selecting between EPS and Poly surfboard construction.
Subscribe to our channel to stay tuned for more exciting videos that delve into the fascinating world of surfing. Don't forget to hit the like button and leave your thoughts and questions in the comments section below. Get ready to ride the waves with confidence!
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00:00 Introduction
00:36 Main Difference
01:00 Paddle Differences
01:40 Flotation Differences
02:07 BONUS CLIP #1 - PIPELINE
02:40 Heavier Surfboard
03:04 Glenn Pang Surfboard Construction
03:52 Other Considerations
04:13 BONUS CLIP #2 - WAIMEA BAY
04:40 Key Takeaways
05:52 Unedited Additional Info - กีฬา
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Haaaaaaannnnnnddddds dooooooowwwwn the best, the best, the best and most thorough and easy to understand surfboard education on the internet and TH-cam!!!!!!! Shaka thank you!!! TH-cam in the internet has been needing a channel like this.....
Thank you guys for answering my call and the need!!! I feel so much better about buying my next surfboards after listening to all this great surfboard education content...
✌🌴 😎 🌴✌
Mahalo Kyle!! So stoked that you love the content! We'll keep delivering for yah dude!
Love this series from a true legend, thank you!!
Mahalozzz!
Most epoxy boards are glassed with two layers of 4 oz on top and 1 layer of 4 oz on the bottom, making them super light and "chattery". If you glass with 6 oz and maybe a patch, you will get more of a poly weight, but way stronger than a regular 4 oz poly glass job. Flex is better too.
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Mister master shaper Pang thanks so much for share ur endless knowledge, each "pill" its very intresting , i hope u continue on this way and open new chapters about lamilation ,sanding, painting and finish
Great job Man!!
Aloha!!;
Absolutely! We will be rolling out many more tutorials and surfboard education videos! Be sure to subscribe and hit the notification bell to get notified when we release them! So stoked you're enjoying our content!
wow an actually well done surfing video on youtube... thank you. usually it's just a lazy video of a guy pointing a phone at himself with no plan, no visuals, etc
Mahalo!
Well done Mr. Pang. Saw and surfed with Mikala Jones at G-Land for a short while back in 2000 and saw him and some crew getting some amazingly good barrels. I have been planning to order and enjoy riding a few myself as soon as I am able to manage it. Mahalo nui loa.
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love this series. thank you!
You are so welcome! New episode coming tomorrow at 10am HST!
love your surfboard tutorials so interesting 🤙
Mahalo! We've had such a positive response from our audience on this content! Make sure to subscribe as we will be rolling out many more tutorials and surfboard education videos! Hit the notification bell so you don't miss out when we release them!
EPS was rough to shape with but after a while it is nice to not shave off too much foam and possibly ruin it when I was learning.
I found it ridiculous when Clark foam shut down due to pollution it caused. Years later, Costco decided to sell tons of wavestorm boards for a low price which in turn flooded the beaches for many years to come. Those boards and the like break easily too
Awesome content and great work on all the embellishments
Thanks so much!
Always helpful! Thank you for sharing the knowledge 🙏 🤙
Absolutely!! Have fun out there 🤙🏼
@@TandCSurf >> Thanks!
How about flexibility? Is board stiffness mostly from glassing or does the foam type add some quality (energy storage, vibration dampening...)
An eps and a poly board of the same volume and mass will have the exact same buoyancy. The equation is BuoyantForce=-(fluiddensity)*(gravitational acceleration)*(Volume)
So in the real world only term that is different between the two boards of identical volume is acceleration due to gravity because the eps and the poly boards have different masses. Eps boards are lighter so they are slightly more buoyant.
perfect vid once again boyysssssss
Shoooots
Thanks for the helpful information! I am mainly riding with epoxy boards (mainly firewire, slater, tomo) given the durability benefits and I typically don’t ride waves larger than 2 meters (7ft). The 2m waves here in Portugal in most cases can be quite heavy so I don’t usually go out. Take aways for me in this video. With the epoxy boards give a few extra paddles getting into the wave. ( I needed a reminder that epoxy boards paddle faster but they don’t keep their forward momentum like PU boards the moment I stop paddling). 2. Get one or two PU boards in my quiver, where i need more weight and the board to sit further into the water, for me sized for waves that are 1.5m - 2m ( 5-7ft) or waves that have a strong groundswell = tons of energy.
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If an EPS was glassed heavier, being the same weight as the PU board, it would have the same flotation and momentum in paddling.
If you ever make similar video sometime to this, can you discuss the 'flex' differences between them too. Thanks
Great feedback! We'll definitely look into that!
@@TandCSurfwill be very helpful for the advanced surfers if you include stringered epoxy boards at the “flex” comparison: stringered eps/epoxy vs stringerless eps/epoxy vs pu/poly. Thank you!!
Thanks Mr Glenn!
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These are great videos. Shakas to you!
Thanks for watching!
Isn’t EPS a closed cell foam? If it is, doesn’t that make it resistant to absorbing water when you get a ding?
Normal Eps takes water like a sponge... But yes, you have a type of Eps (extruded I think) which close shell. Quite expensive...
Only way i enjoy eps is if there is zero wind and its super glassy but id still rather take a poly board out if i had a choice. I prefer poly to all the different materials ive tried. I like prefer the weight and how it flexes.
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Less momentum doesnt quite seem correct. If the eps board is 3kg and a pu board is 4kg there's a big (33%%) difference there. However, the momentum is the weight of the board and surfer because theyre (effectively) statically joined. So for a 90kg surfer the differences between momentums should only be a whisker abover 1.1%
Actual practice, weight and momentum are signficantly coordinated on EPS, and the math doesn't work in actuality of what really happens. Epoxy boards are typically under-glassed, they need more weight, becuase they lose momentum very easily when paddling if they're too light,… such as 4/4/4 or ever 6/4/6,…. more like 6/6/6 or 6/4 6/4 is what's good,… or 6/6 4/4
@@bonsummers2657 Wrong. A few extra grams or even a half pound will not be noticeable when paddling. If anything its psychological. Further, epoxy boards are not under glassed, at all. If anything, they are glassed heavier than PU but because the EPS foam is lighter, they come out lighter. I don't think you know what you are talking about.
You're wrong. My experience concurs with Pang's and Rusty's.@@AEVMU And I found out by personal experience on different makes of EPS, different constructions, different glass schedules. There's a volume and weight concurrence of factors in regard to momentum and lack of momentum, aside from rocker. EPS/Epoxy pioneer Greg Loehr recommends minimum 6/6/6 or 6/6/4/4 on 2LB and less density EPS foam.
@AEVMU it actually is noticeable it feel like you need 2 extra paddles to get in to a wave. I have a 6' 2" 32.3L PU edd and a 5'7" 33.4 EPS Gremlin and if you don't get under the lip on my eps board you can feel the board die when you go to stand if you a little too far on the shoulder where as my pu board with less volume and more rocker is slightly easier to catch waves with
@@bsmbB On EPS go 6/6 deck and 4/4 bottom, or at least one 6 on bottom. 6/6/6 is a good standard on EPS for good paddle momentum. Not 4/4/4 or even 6/4/6 (I had a supposedly 6/4/6 custom but it was too light, although it may have actually been a 4/4/4 by error of the board manufacturer.
Glass EPS 6/4 / 6/4, 6/6/4/4, or at least 6/6/6, best weight speed for EPS.
What do you think about PU boards glassed in époxy resin? Does that make sense? What are the pro or cons of that?
I think you can't do that, the PU foam melts.
@@thomasrebotier1741 nope its the other way around;) Polyster melts EPS. Époxy Is Universal. But I Was actually more wondering about its properties,if It might be too flexy for example.
@@medlog7904
Epoxy has less flex than polyester.
Not a truth. Elongation in epoxy can be a choice... Not in polyester
YEEEW!!!🤙🏼🤙🏼
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What's best momentum weight glass schedule for EPS? 6/6 top, 6/6 bottom? Or 6/4 bottom?
6 bottom & 6+4 deck
I supposedly tried a 6/4/6 it was too light, lacked momentum due to lack of weight@@marcou111 Whereas 6/6/6 felt great.
If youre surfing the power of Hawaii than PU is fine for anybody. If youre not in Hawaiian and surfing places that dont have that power its much easier to throw around a lighter EPS epoxy board in those weaker waves. If you are a bigger person in less powerful surf and you want a bigger board but not too heavy than an epoxy just might be right for you. If youre a under 150lbs or so it probably doesnt matter either way. Im over 200lbs. I ride a bigger short board for flotation and save on weight with an epoxy. As far as flex, well, Im not a pro surfer so I dont notice it. For bigger people in less powerful surf, try an epoxy.
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Leave the EPS to Florida and southern California. Dont burden the Hawaiian board makers with additional chemicals.
Thanks!! What's Mr Pang riding?
He's got allll the boards! He rides it all!
@@TandCSurf 🤙🤙🤙
So PU for bigger waves and eps for smaller?
We're not saying thats the end all be all. But a general guideline that most surfers utilize 🤙🏼
Thanks - T&C have been around forever
The weight of the board, isn't it more related to the type of fibering done on it?
It's a combination of both, but the EPS foam is light enough to usually offset any heavier glassing requirements and so EPS boards usually are lighter overall. The lightest PU foam is about the same or slightly more dense as 2# EPS which is what is usually used. If you use 1.5# EPS and a light or moderate glass job that board will come out lighter than almost any PU board.
PU or not PU. That is the question.
🤣 that is correct haha
that doesnt make sence to make the same glassing over softer foam, when you put extra layers over EPS at 45 degrees, board will not really get stiffer, and all this dogma bullshit about chatter, booyancy etc is thrown out of the window. and the board will last twice longer. still not good for ducttape fixers.
saying that pu is for big waves is false...
PU is not exclusively for big waves. Glenn does mention in the video that some guys do ride EPS boards in bigger waves, they just glass them a lot heavier and that everyone is different. He is speaking from his experiences here in Hawaii and he typically sees PU boards being used in big waves boards 🤙🏼
Doesn't make sense. An off the rack EPS board is what, maybe a half pound lighter? Compare off the rack EPS/epoxy to pro light PU/PE glassing and there is probably no difference at all. Momentum is the boards weight + the riders weight. A half pound difference in board weight is less than 1/4th of 1% in terms of actual momentum, not noticeable. This is nonsense.
Well overall flex and torsion as chop is slapping under you affects glide.
Completely agree. Board density has a miniscule effect on floatation and the bigger the rider the smaller effect. Whether or not you take a dump before a surf probably makes a bigger difference.
I wish there was no edits or effects in the video and just let him talk.
no word about the toxicity of the 2 different constructions. its kind of ironic that surfers "pretend" to care about the health of the ocean while poisoning. the objective has to be, what construction has the least impact on the environment and lasts the longest instead of what can give me a 0,1% better performance in certain conditions.
By that metric constantly flying places for surf would really be the elephant in the room. Building construction uses magnitudes more foam insulation for "green" construction than the entire marine industry including boats and docks. Needless wars/military excesses, central banking excesses, and worldwide open border immigration madness increase environmental degradation more than anything else.
You write to the White House and ask Joe Biden.
Would more glass help give the EPS a bit of weight and help with windy days?
Yes it would. Glenn briefly mentions in the video that some guys ride EPS boards and just glass them a bit heavier to give them a bit more weight.
@@TandCSurf thanks I should have finished watching before I asked 😂
@@alzoid69 your board will be stiffer though. FCD for example glasses their eps boards with more glass and it makes them ride stiff and weird. I get my eps shortboards with standard glass and hope for the best on windier days!