So after a night the sample did not take on any more water than the initial submerge but taking a lighter to it helps a lot. It shrinks a lot also so keep that in mind. I think Ill run the boat a couple times and see how much water stays trapped. I really don't know if any water will get in the hull unless I break the seal :). Anyone have any other input on this? We really need a "Flotation aid" Sticky somewhere unless I haven't found it :)
spray foam?
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I certainly hope u were not implying I don't know how to apply the stuff cause I have been there and done that a looooooooooooooooooooooooooong time ago. I seriously doubt u have slept as many nights in this hobby as I have. This stuff went out of style in the 80"s and I go well back of that!!!!
I probably slept many more nights than you have in this hobby but I agree with you we (us oldtimers) learned the hard way to be careful using mixing types of foam for floatation. I also learned the hard way to secure my swimming pool noodles to the rails or motor mount and not just stuff them under the deck. Getting old only has a few good points so make the best of it and let the younger guys that think they know so much more than us fossels use what ever they like. Don't take offense because one guy makes remarks to suggest you don't know what you are doing or take it personally.
By the way I know somebody asked what the difference was between open cell and closed cell foam. I don't recall anyone trying to explain it. So the simple answer is a kitchen sink sponge is open cell. You can absorb and hold water until you squeeze it out, great for washing dishes, not so much for my boats floatation.
DaveComment
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Relax Curt,
I probably slept many more nights than you have in this hobby but I agree with you we (us oldtimers) learned the hard way to be careful using mixing types of foam for floatation. I also learned the hard way to secure my swimming pool noodles to the rails or motor mount and not just stuff them under the deck. Getting old only has a few good points so make the best of it and let the younger guys that think they know so much more than us fossels use what ever they like. Don't take offense because one guy makes remarks to suggest you don't know what you are doing or take it personally.
By the way I know somebody asked what the difference was between open cell and closed cell foam. I don't recall anyone trying to explain it. So the simple answer is a kitchen sink sponge is open cell. You can absorb and hold water until you squeeze it out, great for washing dishes, not so much for my boats floatation.
Dave
hey u r right!
34yrs in the hobby should serve me and hopefully others as well. In the end if they don't want to take advise from been there and done that so be it. I just remember faithfully how awful cleaning all that stuff out of my boats was!!
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I didn't study history, back then it was called current events.Comment
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Are we all done patting each other on the back for how long we have been in the hobby...
Been into this for 35 years and you know what that means....nothing.Grand River Marine Modellers
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Appears it doesn't to u but that doesn't make it so!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!! lol
OH and I may just continue to pat myself and others on the back too!!!!!! lolComment
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By the way I know somebody asked what the difference was between open cell and closed cell foam. I don't recall anyone trying to explain it. So the simple answer is a kitchen sink sponge is open cell. You can absorb and hold water until you squeeze it out, great for washing dishes, not so much for my boats floatation.
Dave
The two-part foam, on the other hand, I saw the outter skin with lots of holes, maybe mine has been on the shelf for too long, but I didn't see how that is being "close cell foam".
Hence, my original question/confusion.Too many boats, not enough time...Comment
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Go to your local corner store, buy an Arrow bar, take a bite and look what you will see, lots of little holes but they are all closed off behind the bite marks....Therefore, they are closed cell.Grand River Marine Modellers
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Update: The spray foam definitely absorbs water, had some in my radio box of Stiletto, and it squeezed out like a sponge.
Also, I have now mixed and used several batches, in several applications, of epoxy foam from Kintec, and I have found it extremely easy to work with and have had no problems yet, I like it.My private off road rc track
https://www.youtube.com/watch?v=XC3H...yaNZNA&index=8Comment
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Update: The spray foam definitely absorbs water, had some in my radio box of Stiletto, and it squeezed out like a sponge.
Also, I have now mixed and used several batches, in several applications, of epoxy foam from Kintec, and I have found it extremely easy to work with and have had no problems yet, I like it.
Now which Brand of Spay foam did you use, I am surprised that you can squeeze it, on mine ( someone else did the spray) it cured like a rock. Now you got me worried since I can't squeeze! Man, I like to squeeze!
I must say I did not have water absorbtion issue, also I sealed the open cell with a light coat of Epoxy when I first got that used boat.Too many boats, not enough time...Comment
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Yes, the Kintec stuff is easy to work with provided one doesn't over do it in ONE pouring.
Now which Brand of Spay foam did you use, I am surprised that you can squeeze it, on mine ( someone else did the spray) it cured like a rock. Now you got me worried since I can't squeeze! Man, I like to squeeze!
I must say I did not have water absorbtion issue, also I sealed the open cell with a light coat of Epoxy when I first got that used boat.My private off road rc track
https://www.youtube.com/watch?v=XC3H...yaNZNA&index=8Comment
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If u r gonna use great stuff you want to get the blue can. The red can is more likely to pop ur boat apart.Comment
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im glad i found this discussion,, being a relitive newbee i wasnt sure about the spray foam vs the mixed, to me it looks like they both might have their good points and bad,, i think for now i will use the pool noodles, and hope for the bestproboat mystic, preditator outrigger, tt desparado jr, vac-u-vee jr, aqua craft top speed v2, dumas 1/8 scale hydroComment
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