The Boating Forum - What type of foam is pool noodle and where can I buy block of it?

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Mr. Demeanor
11-04-2012, 08:06 AM
I used some pool noodles to test an idea to help my little boat float better at rest. It worked VERY well. The boat floats much flatter and get up on plane better. The motor on this boat is much heavier than what it was designed for. When I beach the boat, it actually beaches stern first. Now it beaches much better.

I would like to find a block of some foam that I could cut/carve into something that would look nicer. Black or grey would be great but I also may try having Brian at Line-X in Sarasota shoot it once it the shape I want. I needs to be lightweight so no suggestions for building a box etc. please.


Karl in NY
11-04-2012, 08:10 AM
closed-cell polyethylene

Bullshipper
11-04-2012, 08:13 AM
http://dafa-as.com/products/foam_plastic/polyethylene_foam_blocks?opendocument

They say they supply in blocks


millacd
11-04-2012, 08:13 AM
very cool! maybe take one of those old white styrofoam coolers, cut it up, and somehow adhere it to the transom. paint it if you like. i like the resourcefulness. I'm not sure, but I think the white cooler styrofoam will be more UV stable over time than pool noodle foam. those things usually break down after a two or three years in the sun.

Mr. Demeanor
11-04-2012, 08:20 AM
very cool! maybe take one of those old white styrofoam coolers, cut it up, and somehow adhere it to the transom. paint it if you like. i like the resourcefulness. I'm not sure, but I think the white cooler styrofoam will be more UV stable over time than pool noodle foam. those things usually break down after a two or three years in the sun.

Thats why I may have it sprayed with Line-X. I will take some up there and see if Brian will shoot a little to see how it reacts. If it works, it would be a nice hard coating.

millacd
11-04-2012, 08:32 AM
Thats why I may have it sprayed with Line-X. I will take some up there and see if Brian will shoot a little to see how it reacts. If it works, it would be a nice hard coating.

gotcha, don't know what line-x is but it sounds great. good luck finding something for it

Mr. Demeanor
11-04-2012, 08:53 AM
gotcha, don't know what line-x is but it sounds great. good luck finding something for it


Truck bed coating.

triguy7
11-04-2012, 09:02 AM
What about a float pod designed a little different for v bottom boats? These picked mine up a few inches - so I'm a big believer in them/concept.

Barnacled
11-04-2012, 09:06 AM
Try McMasters of the Universe (http://www.mcmaster.com/#)...they have everything.

Look under "Raw Materials"

DoubleO7
11-04-2012, 09:31 AM
I am surprised that little bit of foam did anything noticeable.
A float pod that can be bolted to your existing motor bracket would be a long term solution.
The pod could be in the middle as well as on each side.

hatterasman
11-04-2012, 10:35 AM
triguy do you have a web sie address for those pods

triguy7
11-04-2012, 11:12 AM
triguy do you have a web sie address for those pods

boydwelding.com

jdusek
11-04-2012, 11:22 AM
The pool noodle foam won't last long. I used cut some to put on my gaffs so when the rookies and kids drop them over I can get them back. Once in the sun the they shred up and make a mess.

Miss Christine
11-04-2012, 11:30 AM
what a neat idea.....

with the difference in weights between the two and four strokes somebody
can makes some money with a good product sort of like yours

Energizedsbs
11-04-2012, 11:40 AM
Ive seen some flats boats that guys use bumpers under there jack plate.

Mr. Demeanor
11-04-2012, 11:50 AM
The pods are cool but the weight is too much. Once on plane, the extra weight would hurt the overall handling/performance.

Maybe I will just start gluing golf balls to the transom :)

dpowell
11-04-2012, 12:01 PM
Ummm, golfballs don't float. Just saying...

Flot
11-04-2012, 12:03 PM
I'm not being sarcastic - is that even 8 lbs of buoyancy?

captain nate
11-04-2012, 12:06 PM
I used some pool noodles to test an idea to help my little boat float better at rest. It worked VERY well. The boat floats much flatter and get up on plane better. The motor on this boat is much heavier than what it was designed for. When I beach the boat, it actually beaches stern first. Now it beaches much better.

I would like to find a block of some foam that I could cut/carve into something that would look nicer. Black or grey would be great but I also may try having Brian at Line-X in Sarasota shoot it once it the shape I want. I needs to be lightweight so no suggestions for building a box etc. please.
am i reading this right? you used a few feet of pool noodle to help your boat "float flatter"? flatter as in it drafts less?

truculenity
11-04-2012, 12:06 PM
what youve shown in the picture wont do a darn thing for your flotation... youve added a few pounds of buoyant force at best.... anything you perceived as a gain is anecdotal at best.

try some A-B-A testing and document it

dpowell
11-04-2012, 12:08 PM
How about surfboard foam cut to size and coated with something durable? Covered with spray on rubber like in the commercial? A little cheesy I guess...

Mr. Demeanor
11-04-2012, 12:24 PM
OOopps...I meant ping pong balls.


It is a full length pool noodle so yes, maybe 8-12 pounds buoyancy?? I really dont know.
What it does for me though with this very short (13') boat is move the center of gravity at rest forward a bit and probably ads a couple inches of rise at the transom. This is an unusual boat so Im not saying it would work for everyone. I know I can lightly pick up on the motor when its floting and it raising the transom quite a bit. The boat is like a bobber. I just doesnt take much to make a difference.

tomfl
11-04-2012, 12:31 PM
From what I understand 1 sq foot of foam = 60lb of bouyancy/floatation. I don't think it'd be hard to fit 1 sq ft of foam in that area so it would make a noticeable difference.

-T

Mr. Demeanor
11-04-2012, 12:32 PM
With the noodles, the silver strips is just barely out of the water. Similar boat load in the first pic. Second pic had a cooler in the back and maybe a little more fuel but is make a difference.

GCC
11-04-2012, 12:33 PM
You may be able to put a deflated basketball between the transom and the jackplate, then inflate it till its good and snug and that will provide some good flotation. Ive see people do this on bass boats.......

dpowell
11-04-2012, 12:42 PM
Can you move your batteries forward into the bow? Or add some bags of play sand to the bow? You seem a little short on rod holders too? :-)

commuter boats
11-04-2012, 12:43 PM
I used some pool noodles to test an idea to help my little boat float better at rest. It worked VERY well. The boat floats much flatter and get up on plane better. The motor on this boat is much heavier than what it was designed for. When I beach the boat, it actually beaches stern first. Now it beaches much better.

I would like to find a block of some foam that I could cut/carve into something that would look nicer. Black or grey would be great but I also may try having Brian at Line-X in Sarasota shoot it once it the shape I want. I needs to be lightweight so no suggestions for building a box etc. please.

The volume of a cylinder is pi times its radius squared times height... four-inch Pool noodle by about 44 inches in length ( 3.14 x 4 x 44 divided by 230.92 [ the number of cubic inches in a gallon ] ) equals just a little more than 2 gallons of buoyancy not considering that the noodles have a hole through the middle of them.
I am a little surprised that 16 pounds of buoyancy made such a noticeable difference ;?
I completely agree that any benefit would be quickly lost if the structure that is added is not very light, West Marine sells some flat polyethylene bumpers that might work well for you.
Gerald

Monsterfishin
11-04-2012, 01:15 PM
Noodles are poly- ethylene or poly- proplyene foam

yz250b
11-04-2012, 01:28 PM
We hard coat a ton of foam! These guys have it all. As long as you don't go below the hull you should be able to go bigger without issue! We can spray it to your boat like the THP rubrails.

http://www.alliedaerofoam.com/

http://i194.photobucket.com/albums/z176/Line-X_photos/IMG_2529.jpg
http://i194.photobucket.com/albums/z176/Line-X_photos/IMG_2520.jpg

CDill9
11-04-2012, 01:35 PM
closed-cell polyethylene


This is the same stuff that wraps the Coast Guard 25 and 33 foot boats. And it is covered with a Rhino Liner - Line-X material... I would go with this over anything else.

Mostly Harmless
11-04-2012, 02:55 PM
What about two part foam?

http://www.uscomposites.com/foam.html

you can put it in a durable plastic bag to help keep water out of it. Plus you can get the 16lb stuff which would give you a lot of buoyancy for a small space.

Kamper
11-04-2012, 04:04 PM
I've used noodle pieces for swim-line floats at a lake. I got two seasons out of mot of them but they were exposed to the elements all winter. You might not get much service life out of these but the material is so cheap and the install looks so eay, who cares if you need to change it a few times a year!

You could get some thin marine-grade aluminum to make a cover, or even heavy nylon would do it. I'd lean toward the natural look that you have though, for ease of inspection and replacement.

Good luck!

beyondhelp
11-04-2012, 05:12 PM
You may be able to put a deflated basketball between the transom and the jackplate, then inflate it till its good and snug and that will provide some good flotation. Ive see people do this on bass boats.......

I did this on my boat and it made a difference when sitting still. It's enough to keep the stern a little higher and the water out of the boat when it's choppy. Hanging out at the sandbar, anchored etc...

I probably shouldn't have hung a 50hp 4 stroke on it but it works for me. :)

SCFD rtrd
11-04-2012, 06:15 PM
The way I see it; one of those noodles will easily float a 200 lb. man. So he has essentially removed 200 lb.of weight from the stern of his boat.

chemoniepilot
11-04-2012, 06:33 PM
I think a 'small' gas spill will dissolve it

yz250b
11-04-2012, 06:58 PM
Not with the Line-X on it.

Mr. Demeanor
11-04-2012, 07:01 PM
The way I see it; one of those noodles will easily float a 200 lb. man. So he has essentially removed 200 lb.of weight from the stern of his boat.

A 200 pound man will just about float without any noodle though.

Mr. Demeanor
11-04-2012, 07:03 PM
Not with the Line-X on it.

So how hard is pool noodle type foam coated with your product?

Monsterfishin
11-04-2012, 07:11 PM
I am liking the idea of a boat fender that is inflated with the motor down, will also help your trim system.
The noodles will have trouble with the way you drive, they are not rated for 80 mph after uv degradation.
:rofl::rofl::rofl:

Mr. Demeanor
11-04-2012, 07:30 PM
I am liking the idea of a boat fender that is inflated with the motor down, will also help your trim system.
The noodles will have trouble with the way you drive, they are not rated for 80 mph after uv degradation.
:rofl::rofl::rofl:

My little boat attracts PWC's like magnet. I need to figure out away to eject the noodles at speed like rear facing rocket launchers.

Prolineguy
11-04-2012, 07:39 PM
.................................................. ......................

HyundaiAccent
11-04-2012, 07:40 PM
You are looking for a product commercially called ensolite. UV resistant and high flotation. They sell it in different colors as pool floats and other stuff. You can cut several into size of stern and glue them on one in front of the other.

Lemke
11-04-2012, 07:44 PM
Try a foam block archery target... Bass Pro, Cabelas, Walmart, etc.

JoshKaptur
11-04-2012, 08:08 PM
The way I see it; one of those noodles will easily float a 200 lb. man. So he has essentially removed 200 lb.of weight from the stern of his boat.

You're assuming a 200 man displaces 0 pounds of water. The noodle only needs to float the difference.

Mr. Demeanor
11-04-2012, 09:37 PM
That foam in the pic stayed on at 80mph yesterday. 80.1 to be exact!
It really doesnt see any wind or water pressure back there. High and dry!

puppy
11-05-2012, 12:16 AM
closed cell poly urethane foam. the kind they use in 'soft' surfboards, some boat fenders etc. its flexible and tough and lite with no need to be coated and is manufactured in many colors. easy to cut and shape with knife , handsaw , sandpaper, powertools. much better product than the pool noodles.

commuter boats
11-05-2012, 12:26 AM
closed cell poly urethane foam. the kind they use in 'soft' surfboards, some boat fenders etc. its flexible and tough and lite with no need to be coated and is manufactured in many colors. easy to cut and shape with knife , handsaw , sandpaper, powertools. much better product than the pool noodles.

..Electric knife..

CANARIANFISHER
11-05-2012, 01:00 AM
I just can not see the point of this post, Mr Demeanor is bothering just to achieve maybe 6 - 8 pounds of buoyancy ???? , it is pointless, the volume of any light object is roughly equal to its own buoyancy (not considering own weight), so those small pieces of noodles shown might have in the vicinity of 4 liters in volume thus offering (when submerged) 4 kg of upwards forcce wich equals 8 lbs, absolutely irrelevant amount of improvement ............ Cīmon Mr Demeanor you can do much better

yz250b
11-05-2012, 04:12 AM
So how hard is pool noodle type foam coated with your product?

Take a baseball bat hard. You could shape a hunk pretty large and actually use it as a step to get in the boat. Look at the thickness in the pictures. This is twice what's in your truck of a material that is 30% stiffer.

longboat
11-05-2012, 06:56 AM
Ive seen some flats boats that guys use bumpers under there jack plate.

You may be able to put a deflated basketball between the transom and the jackplate, then inflate it till its good and snug and that will provide some good flotation. Ive see people do this on bass boats.......

Those guys are using those things to keep water from shooting up through the jackplate and onto the rear deck, not for floatation. Not saying it doesn't provide any floatation, but that is not why they are using it.

Flyvet
11-05-2012, 07:47 AM
Due to Archimedes's principle It seems to me to get any significant flotation help you need to have someone construct and firmly attach sponsons on each side. They would work best if they don't extend much above the water surface. Seems like a lot of work though.

v12mac
11-05-2012, 08:08 AM
I have bought all kinds of foam from Pollymac Inc. Give them a call.

All it is a tiny race boat, all it takes is a few pounds to make a change.

Mr. Demeanor
11-05-2012, 08:29 AM
Ok...for the naysayers.

You guys are thinking in terms of larger boats. This boat is only as long at the waterline as most bigger boats are wide! Any small amount of weight reduction/flotation at the transom has a drastic effect on how it floats at rest.
When I bought the boat, the rubrail at the transom was in the water. I removed 40 pounds of weight from the engine/transom and it sits much higher. Another 10-15lbs in flotation will help a lot.
One issue I have with this boat is coming off plane. Right as it settles into the water i have to blip the throttle or risk taking some water over the transom. When I ran it with the foam in place that was reduced.
Every little bit adds up when your doing something like this.
As an example, the top speed of the boat is 1.5mph faster if I move my seat back 2" from my typical "comfortable" position. A 10 pound weight in the bow has a huge effect on how it runs and sits. If I sit on the bow, it pulls the prop out of the water.

id-10-t
11-05-2012, 11:17 AM
Have you thought about set back plates , kind of like 3" channel that moves your motor back 3" from the transom . Make a foam template and glass it to the back of the boat? Filling the hole void up with foam maybee

Mr. Demeanor
11-05-2012, 11:46 AM
Have you thought about set back plates , kind of like 3" channel that moves your motor back 3" from the transom . Make a foam template and glass it to the back of the boat? Filling the hole void up with foam maybee

The last thing I want is to move weight further back. I actually have a very unique manual jackplate that only has about 1.5" of setback.

Bullshipper
11-05-2012, 04:28 PM
How about filling the cosole with helium (laughing gas) ?

fijon
11-05-2012, 05:20 PM
helium makes other people laugh when breathed. NO2, laughing gas, makes you laugh when breathed. I thinks helium is lighter.

Gary999
11-05-2012, 05:38 PM
Use PVC pipes with caps and call it a day.

Mr. Demeanor
11-05-2012, 08:54 PM
Use PVC pipes with caps and call it a day.

PVC in is heavy and the engine hits the foam noodles that are there now and crushes them in center when full trimmed in (due to long nosecone on lower unit). I need something flexible or that I can notch for the lower unit.
May try a boat fender if I can find the right size.

sher715
11-05-2012, 10:35 PM
I happen to have a little experience using pool noodles for floatation, but in a little different manner. I also hope that I never have to test them out!

http://www.flickr.com/photos/bt-builder/5501116714/in/set-72157602408266604

As you can see in the photo, I used them as floatation in my boat build by placing them along the sides of the inside of the hull. I have them in the main deck area as well as in the cabin and they're completely covered up by the ceiling panels. I got them at the local Dollar Store for a buck a piece and they're considerably cheaper then other types of foam products.

I have no idea exactly what type of foam they're made of, but before you try using them make sure they're impervious to gas and other petroleum products. I tested quite a few different types of foam before settling on the noodles by taking a small piece of the foam to be tested and putting it in a jar of gasoline. Some types will quickly dissolve and are obviously not what you're after. You also need to make sure that whatever kind of foam you end up with is truly closed cell and won't become water logged over time. I found some that said they were closed cell but still absorbed water.

Good luck.

Dave B

satbeachbill
11-06-2012, 12:21 PM
I use these fenders on my boat. They have a hardened coating on the outside. They come in different sizes and widths.

http://www.amazon.com/Taylor-Made-Products-Modular-Fender/dp/B000MJHK9I/ref=pd_sim_sbs_sg_6



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