Glass weight

General Discussion
1

Quick question (I THINK I know the answer, but I gotta ask)

 

Assuming a 5’10" Fish(ish) PU shape. What would the weight difference be between:

 

4/4 top / 4 bottom - E glass

 

and,

 

4/6 top / 4 bottom - S glass?

 

in all fairness, I’m guessing that my last meal before a session will make more difference in weight…

 

Thanks in advance for your (far more educated than my) responses!

2

Should problably have mentioned that this board is going to be old standard: - Poly Urethane Blank / Poly Ester resin

 

Thanks again

3

I tried to do the math but it's getting late...

+2oz/sq yd X 2 yds (length of board) X .66 (amount of sq yd reduced by width of board) = 2.64 oz. (weight of additional cloth) X 1.5 (approximate additional weight of resin to saturate heavier cloth) = 3.96.

So, additional cloth weight + resin weight = roughly 6.6 oz.

I don't think there is an appreciable difference in weight for cloth or resin when using 'S' or 'E' cloth.  Those figures roughly estimate the extra weight of the 2 oz difference in cloth weight for the one deck layer + additional resin required to saturate it.

 

4

Aloha lockedin

The added weight should be around 1/4 to 1/2 pound, if glassed properly.

 

5

Thanks Bill & John!

 

That was what I thought - that a large meal will affect performance more than a “heavy” glass job.

6

Do you surf on your stomach or are your bowels in your board?

I think your weight comparison is flawed, where the weight is, is just as important as how much there is.

7

 

hehe Good point.

So then, which would you consider to have more of an effect on a 195 pound board / rider package:

an additional 8 oz of static weight (extra fiberglass) on the deck of the board?

or an additional 8 oz of dynamic weight (1 Avocado in stomach) appx 3ft higher up?

And finally, just how much does that 8 oz affect the sum package (195 pounds )

 

IMHO negligible effect in weight for the additional strength imparted by the heavier glass schedule

8

1/2 lb board weight might very well be detectable ride wise.  Likely most apparent on take offs and sudden direction changes where 'swing weight' comes in to play.

9

Very True - the board in question will be a fish(ish) 5’10", I’m a heavy footed 185 pounds. I’m using the 6 ounce in an attempt to extend the life of this board a bit; all of my shortboards have enormous heel dents and most have delams in the same spot.

I don’t really think on swing weight that much until I step onboard my guns or longboards, but what you say makes sense.

 

Thanks again!