Well, to fill all the voids on a Whip 20 you'll probably need 2 cans of great stuff. Plus, when the fastest guys I knew told me exactly what to get I did that. The stuff made for boats is likely a little heavier. It does make a really sturdy boat though. I can chop a buoy in two at 60 mph without even letting off the trigger.
Great Stuff for flotaion
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4.5 lbs,,,thats funny
Grand River Marine Modellers
https://www.facebook.com/search/top/...ne%20modellers
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Brushless ....it looks like we have missed the boat after all these years. Can you amagine if i did not use foam in my boat ...........i mean all that extra wieght it had to carry running two way averages of 98.5mph and a best of 102mph !!!!How can we have let this happen!! LOL Besides i wont need foam soon.....Im trying to figure out how to walk on water and avoid these problems......Ummmmmm hasent worked yet . LOLPT-45, 109mph, finally gave up after last bad crash
H&M 1/8 Miss Bud 73 mph
Chris Craft 16 mph
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this is funny!Originally posted by T.S.Davis View PostWell, to fill all the voids on a Whip 20 you'll probably need 2 cans of great stuff. Plus, when the fastest guys I knew told me exactly what to get I did that. The stuff made for boats is likely a little heavier. It does make a really sturdy boat though. I can chop a buoy in two at 60 mph without even letting off the trigger.
do you know how big a Gas KOS is?
give ya a hint, it's BIGGER than a Whip 20
I think I used half a can to fill up the front of a hull
.NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s
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wow Venom. Didn't expect that on this forum.
My Whip is filled stem to stern. I have two virtually identical boats. One with foam one without. Doesn't matter.
It's really not necessary to be an a'hole about it. Guys with some experience tried share what they've learned and you crap on it. You guys obviously need no input other than your own so I'll refrain from offering any in the future.Noisy person
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When I built my Whip 20 I used the 2 part polyurethene foam to fill the sponsons. Before I add the foam the boat would sit on a flat surface with the sponsons and transom touching, after adding the foam the transom would no longer sit on the table.Originally posted by Rumdog View PostHmm. Does the foam gain weight as it expands? I know a full can of Greatstuff no way weighs 4.5lbs. Not sure how it could possibly weigh more once expanded.
As for the Great Stuff stay away from it. I built a classic hydro round nose kit,taking my time to fill it carefully. after hitting a concrete erosion wall and destroying the hull,I looked at the integrity of the foam it was soft spongy and growing mold were water that seeped around didn't dry out and it did nothing for reinforcing the hull.
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sorry man, but this cracks me up!Originally posted by T.S.Davis View Postwow Venom. Didn't expect that on this forum.
My Whip is filled stem to stern. I have two virtually identical boats. One with foam one without. Doesn't matter.
It's really not necessary to be an a'hole about it. Guys with some experience tried share what they've learned and you crap on it. You guys obviously need no input other than your own so I'll refrain from offering any in the future.
my Gas KOS still has more space inside the hull than a whip 20, those are small compared to my kos
you could possibly put two of those inside my KOS
.NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s
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Add another Nationals winner to this thread (2009 1/10 scale) LOL! not that it matters!Originally posted by T.S.Davis View PostI just noticed something. This thread has 4 world/national record holders saying "don't use great stuff" and still some just gotta be right. Stubborn buggers yous's. haha
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Uh Oh.....starting to see who can pee the highest on the tree....Grand River Marine Modellers
https://www.facebook.com/search/top/...ne%20modellers
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haha Yer waist'n your time too. I think you hold the record for that class too don't you? Nobody cares unless your in step. If your results were anything less than stellar the problem is clearly you man. haha
Hey we forgot 2 national chairman. not that it matters too.
Gotta love the internet.Noisy person
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now go hit the shore at full throttle and see how well it holds up.Originally posted by Brushless55 View Postsorry man, but this cracks me up!
my Gas KOS still has more space inside the hull than a whip 20, those are small compared to my kos
you could possibly put two of those inside my KOS
Me and friend who is a HI POWER model rocket junkie built 2 identical rockets to test the strength of the Great stuff and the 2 part urethane foam. I used Great stuff he used the good stuff, guess which rocket is still flying.... not mine. mine is scattered all over the Pawnee National Grass Lands in Northern Colo. both rockets broke Mach 1.
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Is it possible that people use it and have differen outcomes? You guys are getting a little too touchy. It's OK if everything you state isn't taken as the ONLY way. Give a suggestion based on your experience. Other than that, I could care less who's won what race.
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Actually people were giving suggestions and there experiences, than people started saying "follow instructions" "read directions"Originally posted by Rumdog View PostIs it possible that people use it and have differen outcomes? You guys are getting a little too touchy. It's OK if everything you state isn't taken as the ONLY way. Give a suggestion based on your experience. Other than that, I could care less who's won what race.

I am the type of person that reads directions very carefully.. and that Great Stuff crap sucks, for boats anyways. Works good for its intended purpose... homes!
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