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SUP construction ... Need some advice

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Created by spencerstevens > 9 months ago, 26 Feb 2015
spencerstevens
WA, 8 posts
26 Feb 2015 9:15PM
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I'm looking to get a new SUP. I want something that is strong and good quality. There seems to be a few options out there. Some costing a lot more then others. Im wondering if its necessary to go for the most expensive construction or a cheaper construction?

Here are some of my options im considering.

1. PVC Sandwich Deck full carbon wrap + 2 x 4oz fiberglass Bottom carbon wrap +2x 4 oz fiberglass

2. Deck full carbon wrap + 2 x 4oz fiberglass Bottom carbon wrap +2x 4 oz fiberglass

3. Deck 6oz + bamboo+ 4oz + PVC extra strength standing deck pad Bottom 6oz+ bamboo+ 4oz

4. Deck 6oz + bamboo+ 4oz + Bamboo or fiberglass extra strength standing Deck pad, Bottom 6oz+ bamboo+ 4oz

5. Deck 6oz + bamboo+ 4oz Bottom 6oz+ bamboo+ 4oz

I'm thinking to go with option 2 or 3. One of my concerns about the PVC deck pad would be if its in the sun for a long time what will the chances the PVC melts in the sun? The board does have an Air vent

I would love to hear some thoughts and experience and maybe some pros and cons so i can decide what will be my best option.


Thanks ,

Spencer




Kami
1566 posts
26 Feb 2015 11:33PM
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Hi Spencerstevens, before giving you some thoughts about your next SUP, what are dimensions of your new toy

Can be different ways to do it up to those dimensions

TalkToMe
QLD, 118 posts
27 Feb 2015 1:37AM
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Wise move there Spencer with your wording and not using specific brands and names. You're more inclined to get better answers and advice.

All the best with it.

spencerstevens
WA, 8 posts
27 Feb 2015 1:16AM
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Hi

I'm thinking a 9'8 or 9'10, something for waves

Kami
1566 posts
27 Feb 2015 5:14PM
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25 kg EPS foam/ wood stringer / 6 oz glass on bottom/ 6 oz on deck ant 2 layers carbon 200 grams under grip position .
Will be light around 8kg/ strong to snapping in halves / strong to print stepping/ enough strength to paddling shocks as well.
Hand laminating might be easier than amateur bagging which can be disastrous for rocker/ stability during bagging process.
Put one air vent on both side of stringer
This is my thought about it

spencerstevens
WA, 8 posts
27 Feb 2015 5:33PM
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Select to expand quote
Kami said..
25 kg EPS foam/ wood stringer / 6 oz glass on bottom/ 6 oz on deck ant 2 layers carbon 200 grams under grip position .
Will be light around 8kg/ strong to snapping in halves / strong to print stepping/ enough strength to paddling shocks as well.
Hand laminating might be easier than amateur bagging which can be disastrous for rocker/ stability during bagging process.
Put one air vent on both side of stringer
This is my thought about it


Why an Air vent on both sides of the stringer?

Kami
1566 posts
27 Feb 2015 6:27PM
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Because stringer stuck in the middle of EPS blank provide 2 volumes which both of them must be ventilated.

spencerstevens
WA, 8 posts
27 Feb 2015 7:25PM
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Select to expand quote
Kami said..
Because stringer stuck in the middle of EPS blank provide 2 volumes which both of them must be ventilated.


what about a board with PVC?

Kami
1566 posts
27 Feb 2015 9:08PM
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PVC layers it can be worst, because the steam push layers between each-other then delimitate.
In both solution still need 2 valves between stringers or at least put a single vent just on stringer with gap or hole in the stringer to ventilate both side with single vent..
In both solution, laminated or bagging, it need a stringer for boards of almost 10 feet long board even if it's +4" thick board.

colas
4981 posts
1 Mar 2015 2:59PM
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PVC wont melt in the sun... but leaving a board in the sun for a long time is a sure recipe to shorten the life of any board, so avoid.

On the construction, on boards 9'+, the blank density is a major weight factor. So to get a light board you need to combine a lighter blank than 25 kg/m3 with a harder shell, hence the PVC sandwich layer. Bamboo layers are not really a sandwich, as the thickness involved are not enough to have s noticeable sandwich effect (resistance to pressure depressions).

The main decision is: do you want a light board? it may not be useful for you, for instance for a longboarding style, weigth is good. If you want a lightweight board, you will have to compromise: price/weight/reliability, you can't have it all. Also, do you get hysterical with some pressure dent or you don't care? Do you surf rocky beaches? ...

Also, the quality of workmanship is paramount: non-skilled builders use too much resin, or sand too much the rails... 2 boards with the same theoretical construction can be very different durability-wise.

LordKuz
NSW, 260 posts
1 Mar 2015 6:10PM
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Select to expand quote
colas said..

Also, the quality of workmanship is paramount: non-skilled builders use too much resin, or sand too much the rails... 2 boards with the same theoretical construction can be very different durability-wise.


Hear! Hear!



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