-
Welcome to the DeeperBlue.com Forums, the largest online community dedicated to Freediving, Scuba Diving and Spearfishing. To gain full access to the DeeperBlue.com Forums you must register for a free account. As a registered member you will be able to:
- Join over 44,280+ fellow diving enthusiasts from around the world on this forum
- Participate in and browse from over 516,210+ posts.
- Communicate privately with other divers from around the world.
- Post your own photos or view from 7,441+ user submitted images.
- All this and much more...
You can gain access to all this absolutely free when you register for an account, so sign up today!
US East Coast source of divinycell HCP?
- Thread starterplachalam
- Start date
Thread Status: Hello
, There was no answer in this thread for more than 60 days.
It can take a long time to get an up-to-date response or contact with relevant users.
It can take a long time to get an up-to-date response or contact with relevant users.
whats the advantage to this stuff? its so expensive. i cant justify the expense so far. has anyone used this stuff? why is it so great? cant you use a lifeguard float, fill it with closed cell foam, the whole thing costs like 75$ or less, these divinylcell boards would have to cost more , since the raw material is like 500$ for a 4' x 4' sheet at 2" thick. unless you know where to get it cheaper. if you get some and are selling some of it to cover costs, or selling boards, let me know, i would be interested to check it out. is that what is the core of surfboards? if not what is? i was thinking of going to home depot, buying 2" thick foam insulation board, and covering it with about 3 layers of fiberglass, and make my own custom shaped boards. its on my project list, but its pretty low on the list right now.
the lightest i would use is hp 80
whats the advantage to this stuff? it will take no damage to several hundred feet
cant you use a lifeguard float, fill it with closed cell foam. yes but not with home depot stuff ,a dense enuff weight will cost around $40 -$50
is that what is the core of surfboards? no boards are made of 1# or 2# eps or pu foam
i was thinking of going to home depot, buying 2" thick foam insulation board, and covering it with about 3 layers of fiberglass
the hd stuff will crush at 50' to 75' no matter how much glass you put on it
if you want a tuna board divinycell is the way to go
phil
SO, HOME DEPOT foam isnt ridgid enough? that is the probem? somebody told me once that it was because the foam they have will take on water. i have found out that isnt true. the black can is closed cell. but now you say it will crush? because its not ridgid enough? that makes sense , since after it dries , it has a little mushiness to it. but there is a much more ridgid variety of foam, they have in 4x8 ' sheets. some of it is that hard foam that doesnt mush at all. it either cracks or holds up. its kinda hard but brittle. that seems to me to be the stuff to try. since it wont give at all. it looks and feels identical to the foam below the deck of my boat, when we pulled the gas tank from under the deck, and that IS the correct foam. seems like it may work to core a fiberglss board. unfortunately its not a tuna board, since we dont have tuna larger than 30lbs here. really, we donthave any fish ,(pelagics) capable of pulling a lifeguard float underwater for more than a few seconds. maybe a 110lb wahoo could do it, but not so far ,(i never got one that big yet) 40lbs is my record so far fortunately. the fish that COULD do it, ,(jewfish, amberjacks) we mostly leave alone . out of everyone i know, i am only one of two people who even bothered to fill their floats at all. mine has closed cell home depot foam in it, so i wont be taking it to baja any time soon. i will make some floats eventually, but i gotta do about 4 other projects first. i'm pretty sure that i can source some foam that will work, alot cheper than the two part stuff at west marine, for 110$. we have 2 part foam at work in 55 gallon drums, its closed cell and ridgid too, we use it for insulating attics and also a new kind of roofing for flat commercial roofs. we take foam and spray it down and cover it with light gravel. makes a really nice leak free roof. new technology.
Thanks for good input, have found a supplier....
For tuna boards the basic advantage vs expense of the divinycell is the higher compressive stregnth.
The HCP (hydraulic crush point) is designed for sub sea applications with a density of 12.5 lbs/ft2 and 696 psi (rated to 700 meters)
The H80 is 5 lbs/ft2 at 203 psi, For a 3 ft2 volume board designed for 100 lbs bouyancy the H80 looks like best choice, price and weight wise, especially if youre travelling. If you're not expecting the float to go down, any HD non permeable should do the job. Three layers of glass gets heavy though.....
cheers
For tuna boards the basic advantage vs expense of the divinycell is the higher compressive stregnth.
The HCP (hydraulic crush point) is designed for sub sea applications with a density of 12.5 lbs/ft2 and 696 psi (rated to 700 meters)
The H80 is 5 lbs/ft2 at 203 psi, For a 3 ft2 volume board designed for 100 lbs bouyancy the H80 looks like best choice, price and weight wise, especially if youre travelling. If you're not expecting the float to go down, any HD non permeable should do the job. Three layers of glass gets heavy though.....
cheers
Before you lay out the big bucks for a sheet, try getting divinycell rems or small cut offs from a local boat builder. Years ago I could get enough scrap
to build two tuna boards for a case of beer....just a thought.
Cheers, Don
what sort of boats use it in building? we have a few boat building shops around , but most make sailboats. divynylcell, does it go by any other name, or is there a different brand equivalent that may be suitabl? also, with remnants, i would have to cover in glass? do you always cover divyn. in glass? i thought you just cut your shape and rock and roll. no?