Recently I overheard a fellow kayaker say he was going to shave his "plastic" kayak. I didn't pay much attention until I heard someone else mention it also. He said if you take a regular BIC razor and shave all the small nicks and scratches on the bottom it will make it smoother in the water. Do people actually do this and if so, does it really help much?
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Posted by: gstamer on Dec-02-12 3:27 PM (EST)
Posted by: radskierman on Dec-02-12 4:53 PM (EST)
Unless your racing, in which case you most likely are not in a plastic boat, why bother? I paddle for exercise as much as anything, so a little extra drag is a good thing. My bottom is really rough, with gouges and every thing else and I really don't care. In fact, my ability to just run it up on shore and not have to worry about it is probably half the reason my fiberglass boat gets paddled so little. As in 3 paddles out of my last 190 paddles has been in my fiberglass boat! Want to buy a very little used Assateague reasonable?
Posted by: shiraz627 on Dec-02-12 6:44 PM (EST)
The new pivoting four blade Gillette's cartridges along with the Gel cream makes the boat fly!
There still isn't much evidence about |
Posted by: g2d on Dec-02-12 7:11 PM (EST)
how much roughness affects plastic boats, smooth or scarred. Plastic boats don't enter serious races, they don't carry out missions for the Navy, and so there isn't much motivation for towing plastic boats in float tanks to find out the truth.
Have you guys ever sailed a dirty hull|
Posted by: onnopaddle on Dec-02-12 8:17 PM (EST)
then cleaned it and sailed again ? Night and day difference. Plastic boats are more effected than composite BC the 'hairs' stick out into flow. A few scratches cleaned up not gonna notice, but if your boat looks like it wallowed across oyster beds for a week then it will be noticeably improved in speed and glide by shaving or melting this stuff off.
melting is better|
Posted by: Dr_Disco on Dec-02-12 8:53 PM (EST)
if you really want to do it. Get a torch and heat a metal rod (held with a firm grip tool). Carefully move the heated rod over the surface of the hairy plastic hull to fill scratches and remove protrusions. Don't get burnt and don't get the rod too hot. And don't post here about "how do I repair burn holes in my hull".
I thought my fuzzy kayak and c-1 were |
Posted by: g2d on Dec-03-12 11:17 AM (EST)
faster after I smoothed and recoated them, but I just don't trust my own subjective impression. Somewhere, there's got to be some tow tank data.
how do I repair burn holes in my hull|
Posted by: ShadyClip on Dec-02-12 9:07 PM (EST)
Completely utterly FALSE|
Posted by: willi_h2o on Dec-02-12 9:14 PM (EST)
Posted by: carldelo on Dec-03-12 5:49 PM (EST)
I saw some experimental and simulation results of flow in the micro grooves. Interesting, and yes they have to be tailored to the velocity and flow direction to have any useful effect. It's not really about detaching flow, the grooves actually modify the flow structure at the wall, and reduce the overall viscous friction production.
If you decide to go ahead ...|
Posted by: Bob_d on Dec-02-12 9:45 PM (EST)
.. and shave it be careful not to cut too deep.
I have two Scupper Pros here|
Posted by: onnopaddle on Dec-02-12 11:30 PM (EST)
both weigh the same. Hulls still stiff and original shape. ... One is hammered and totally gouged up in every direction on the entire hull ..I.E. like it wallowed on oyster beds. In this case it was lava + other razor sharp sea stuff. The other is relatively untouched ... Its pretty EZ to tell which one is which by the glide and effort it takes to move them through the water.
Clean and smooth|
Posted by: willi_h2o on Dec-03-12 9:58 AM (EST)
I would never wetsand a kayak, but I agree that
Posted by: harry0244 on Dec-04-12 7:23 PM (EST)
I waxed my plastic boat. I do not notice any difference paddling, but mud from various launch and landing sites comes off faster.
I have, but don't now|
Posted by: Peter-CA on Dec-03-12 1:04 PM (EST)
I have shaved boats in the past, but don't now. Didn't feel a difference between shaved and un-shaved.
I'd Save the Shavings |
Posted by: clydehedlund on Dec-03-12 1:42 PM (EST)
For filling in any large gorges and holes.
my question |
Posted by: radiomix on Dec-03-12 2:18 PM (EST)
Would be. If one cared enough to shave ones plastic boat, why does one have all these scratches, and why does one race a plastic boat?
Posted by: poleplant on Dec-03-12 2:43 PM (EST)
A 50 lb tub of Nair did it for me.
Shave your head|
Posted by: jimyaker on Dec-03-12 2:56 PM (EST)
Posted by: krash on Dec-04-12 9:34 AM (EST)
Don't shave my hull with a shaving razor..
That was truely funny.|
Posted by: kayakboy on Dec-04-12 6:41 PM (EST)
don't shave it|
Posted by: Pirateoverforty on Dec-04-12 9:51 AM (EST)
Just tell everyone it's a European kayak