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PostPosted: Mon Jun 17, 2013 8:18 am 
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Joined: Sun Jul 01, 2012 5:45 pm
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Anyone find a source for a different gasket for the 8" twist n seal hatches? I've tried many different lubricants on the seals, replaced the seals, loosened the hatch screws & retightened, etc. and each attempt works for a few hours at best. I'd like to try a round gasket before I break the damned hatch tab trying to get it open.


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PostPosted: Mon Jun 17, 2013 3:30 pm 
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Joined: Wed Oct 29, 2008 1:10 am
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Location: EL CAJON, CA
I replaced the gaskets and it was the same thing.
They were impossible to open. I picked up some
silicone spray at home depot and that fixed it.


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PostPosted: Mon Jun 17, 2013 3:42 pm 
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Joined: Sun Aug 12, 2007 5:17 pm
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Location: Auckland NZ
Spray silicone is the best lubricant for the hatch seals but you do need to reapply it reasonably regularly especially if you use your boat in salt water and hot sun. If the hinges get stiff I use a tiny amount of spray oil just to feee them up a bit.


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PostPosted: Mon Jun 17, 2013 4:09 pm 
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Location: Amelia Island, FL
It's not the gasket that is the problem. Your kayak is a piece of plastic that is going to warp in the sun over a period of time. That will put stress on the hatches making them hard to close. Have you noticed how once you get them closed they tend to settle down so they fit? The only solution is to remove the hatches and trim the hatch cutouts to fit the new configuration of your newly shaped hull :mrgreen:

If you don't want to go to all that work, keep the gaskets clean and lubed.


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PostPosted: Mon Jun 17, 2013 11:31 pm 
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Joined: Sat Nov 12, 2005 10:46 pm
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Location: Escondido
Quote:
For your hatch, make sure your gasket is not twisted, has fresh silicone spray or [edit] silicone grease and use your fist to lower the high side as necessary.
Image
8)


Last edited by Roadrunner on Tue Jun 18, 2013 4:06 pm, edited 1 time in total.

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PostPosted: Tue Jun 18, 2013 3:49 pm 
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Joined: Tue May 27, 2003 12:44 pm
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Location: Oceanside, California
Don't use a petroleum based lube... that swells the o-ring and will damage it. Silicone is the key to success.

The t handle can not typically pull the hatch perfectly flat when closing. If concerned (cosmetic issue only) press closed with a palm.

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PostPosted: Tue Jun 18, 2013 4:15 pm 
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Joined: Sun Jul 01, 2012 5:45 pm
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Thanks for the input, I'll try the silicone spray. I did have a feeling that the hull had somehow changed even though it's less than a year old and stored upside down.


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PostPosted: Tue Jun 18, 2013 4:30 pm 
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Joined: Fri Jan 05, 2007 9:21 pm
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Location: Maui, Hawaii
Even the propellant in silicone spray can damage the seal, so we spray the sides of the hatch hole and wait a few seconds for it to evaporate before closing.

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PostPosted: Tue Jun 18, 2013 9:59 pm 
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Joined: Sat Nov 12, 2005 10:46 pm
Posts: 2387
Location: Escondido
islandspeed2001 wrote:
It's not the gasket that is the problem.
Hatch seals are not symmetrical and sometimes get twisted. The composite picture below shows on the port (red), a seal that has twisted out of position.
Image
This tends to bind that side causing it to hang up. Making sure your hatch seals are correctly positioned is the first step in correcting an uneven hatch.

Quote:
Your kayak is a piece of plastic that is going to warp in the sun over a period of time.
Interesting. I haven't seen this issue come up before. None of my Hobies over the past 13 years have suffered any twisting, warpage or lack of symmetry. Understandably the boats expand and contract with temperature and can dent with too much local pressure on the hull, especially in heat. But then, mine are stored inside usually and tend to be the lighter, cooler colors.

So while this may happen in some circumstances (as in your case), it's certainly not a foregone conclusion IMO. 8)


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PostPosted: Wed Jun 19, 2013 4:51 am 
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Joined: Mon Apr 26, 2010 6:06 am
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Location: Amelia Island, FL
Roadrunner, it you think your plastic boats aren't changing their shape under the sun or in cold conditons you better rethink this. Most of this would not even be noticeable to the naked eye. Only your hatch would know :mrgreen:


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