da Andre-Torino » lun mag 22, 2017 1:15 pm
Vi posto quanto scritto sul sito di uno shop Inglese:
PE CORE - Polyethelene
s better than EPS, this is not always the case. The density and quality of the PE core is what makes all the difference. Dow makes the best PE used in bodyboards. Core density should be 2.3lb pcf (Pounds per cubic foot) and above, this is the density of the foam per square foot. I have seen 1.8PE foam with 3 stringers sell for £80. The board is weaker than many at £40. It is good to get sound advice when buying a PE board.
2.4lb PE core, 8lb PE deck skin, single stringer (rod inside for extra strength and recoil). PE core boards will come in a choice of HDPE slick bottom (High density polyethylene) or surlyn slick (made by DuPont) HDPE. HDPE features on all boards under £140. This material is fine but when it creases it creases deep, which will permanently affect the flex of the board.
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NRG & PARADOX CELL CORES
In recent years we have seen the addition of what are known as as either NRG or Paradox cell cores. These are names given by the two main factories producing bodyboards in the far east. These cores were primarily produced to replace PE cores on pro boards but they have infact found there own place in the market.
These cores are 1.3 PCF PP cores that are less dense than standard PP, hence allowing for more flex. This is often used in conjunction with various stringer and mesh combinations to give strength. Early results seem pretty good as long as you get the correct combination of materials. A typical NRG/ Single stringer/ Mesh combo is perfect for 12 to 18 degree water temp. Paradox cell and three stringer combination is very similar perhaps a tad stiffer.
We have spent a lot of time testing these combinations so please call us for accurate advice on what will be right for you and where you are using your board.
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PP CORE - Polypropelene
The most expensive core and the core of choice for warmer, hotter climates is PP (Polypropylene). Polypropylene is lightweight and waterproof. A great core but often too stiff here in the UK, esp in the winter.
If you are considering a PP board look for 1.9 PCF core. 8Lb PE deck, Surlyn slick. This will give you all the performance you will need for warmer waters and climate.
Do not get the variety of different names that our out there that confuses people even more. Names like Freedom 6, Black magic core etc. These are basically all the same thing.