Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 26-01-2008, 05:53   #1
Registered User

Join Date: Mar 2006
Location: Buena Vista Colorado
Boat: S/V Pooka Com-Pac 27
Posts: 212
Caulk question

There is a dizzying number of caulks out there. I need to replace a couple hatchs. After removing one that was possibly bed with 5200 I don't want to use that again for this purpose, just in case. What would you recommend to seal a deak hatch?
__________________

__________________
S/V Pooka
Com-Pac 27
bmiller is offline   Reply With Quote
Old 26-01-2008, 08:39   #2
Registered User
 
Celestialsailor's Avatar

Join Date: Nov 2006
Location: In Mexico, working on the boat
Boat: Hallberg Rassy 35. and 14ft.Whitehall pulling skiff.
Posts: 8,013
Images: 5
I was surprised that you got the hatch off if it was 5200. For a hatch that is exposed the UV rays, a sealant with UV ray protection might be your best choice. At least that will limit the choice of sealants a bit. I have always had good luck with Silkaflex products.
__________________

__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming: Wow - what a ride!"

http://wwwjolielle.blogspot.com/
Celestialsailor is offline   Reply With Quote
Old 26-01-2008, 09:04   #3
Registered User
 
Benny's Avatar

Join Date: Jan 2007
Location: St Catharines ON, CAN
Boat: Irwin 37 CC ketch 'Ta-Keel-Ah'
Posts: 396
Sikaflex is the way to go - BTW they make a construction adhesive/sealant which is virtually the same as the marine product at much less cost
__________________
Randy Benoit
I37CC 'Ta-Keel-Ah'
Benny is offline   Reply With Quote
Old 26-01-2008, 09:19   #4
Moderator Emeritus
 
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 10,150
As an aside here, it would be interesting to put together a list of equivalent products that have a rip off price for boaters and a reasonable price for land dwellers.
__________________
David

Life begins where land ends.
David M is offline   Reply With Quote
Old 26-01-2008, 09:21   #5
Registered User

Join Date: Nov 2005
Location: Ohio
Posts: 2,313
We use polysulfide in combination with a butyl tape. If you lay a 1/8" strip of butyl tape in the center of the rim and then lay a bead of poly on each side of it you will not squeeze out the poly when you set the hatch. The buytl will not cure and will always keep the seal.
__________________
Joli is offline   Reply With Quote
Old 26-01-2008, 09:23   #6
cruiser

Join Date: Aug 2005
Location: No longer post here
Boat: Catalac Catamaran
Posts: 2,462
I've been using the polyurathene construction products from Home Depot for bedding chainplates and winches. I'm 2 years into the experiment, but so far... no complaints.
__________________
Tropic Cat is offline   Reply With Quote
Old 26-01-2008, 10:15   #7
Registered User
 
scotte's Avatar

Join Date: Apr 2007
Location: SF Bay Area, CA, USA
Boat: Privilege 39
Posts: 664
Quote:
Originally Posted by Joli View Post
We use polysulfide in combination with a butyl tape. If you lay a 1/8" strip of butyl tape in the center of the rim and then lay a bead of poly on each side of it you will not squeeze out the poly when you set the hatch. The buytl will not cure and will always keep the seal.
This is interesting, but I don't follow precisely where you put the tape, and I don't think you are building up a sandwich of layers. Thanks!
__________________
scotte is offline   Reply With Quote
Old 04-02-2008, 18:05   #8
Registered User

Join Date: Apr 2006
Location: Port Clinton, Ohio
Boat: C&C Landfall 35 HiHo
Posts: 112
Joli,

Wher are you getting your butyl tape, I like your approach.

Steve
__________________
Hi Ho is offline   Reply With Quote
Old 11-02-2008, 16:31   #9
Registered User

Join Date: Feb 2008
Posts: 4
We use 3M 4200 it works good and holds up well. just caulk it, snug it down let it set for a couple hrs then tighten down.
__________________
thomas70 is offline   Reply With Quote
Old 11-02-2008, 16:45   #10
Registered User

Join Date: Oct 2007
Location: Southern California
Boat: Was - Passport 45 Ketch
Posts: 837
Here's the bottom line:

If you want something that will never fail, use 3M 5200. If you want something less, expect the corresponding results, over time.
__________________
Kanani is offline   Reply With Quote
Old 11-02-2008, 16:45   #11
Registered User
 
mickmul's Avatar

Join Date: Mar 2007
Location: Ireland
Boat: Van de Stadt 34'
Posts: 288
Images: 1
There is a product here called Tek 7 (or Tec 7) that you can apply even underwater to seal cracks in an emergency. I've used it to seal windows not a hatch and it has incredible strength but flexibility. . .
__________________
[SIGPIC][/SIGPIC]
mickmul is offline   Reply With Quote
Old 11-02-2008, 17:26   #12
Registered User

Join Date: Feb 2008
Posts: 4
Kanani, you really should not use 5200 above the waterline the sun will break it down. And at some point the hatches may need to come out again. I've been in the business 38 years and have seen many cases where people have used it on deck and in a couple years it breaks down and gets chaulkey.
__________________
thomas70 is offline   Reply With Quote
Old 11-02-2008, 17:37   #13
Registered User

Join Date: Oct 2007
Location: Southern California
Boat: Was - Passport 45 Ketch
Posts: 837
Quote:
Originally Posted by thomas70 View Post
Kanani, you really should not use 5200 above the waterline the sun will break it down. And at some point the hatches may need to come out again. I've been in the business 38 years and have seen many cases where people have used it on deck and in a couple years it breaks down and gets chaulkey.
ABSOLUTELY false........3M 5200 has the best UV resistance in the industry.

I made a very thick (about 1 1/2" thick) "Mold" of 5200 to hold a deck plate in place. My intension was to drill and screw it in place after it cured. I never did that. That was in 1990 and it is still in place with no cracks.

The plate was an access hole for the emergency tiller. I installed a working tiller (for my windvane). The plate was not level and I installed a 5" long solid brass bearing in that plate. I slipped the bearing, plate & all, down the rudder shaft to the deck. I ended up needing to build up the area and a shipwright friend of mine suggested 5200. It worked perfectly after curing for 30 days. I sailed 80,000 miles with the windvane stressing that bearing (held in place with 5200) every inch of the way.

I agree that if you expect to remove the hatches again, it will be difficult. However, I would expect to not have to remove a hatch in 10 - 15 years. In that time, it won't leak with 5200, I don't think that you can expect that service out of most sealers.

I bedded my chainplates, winches, cleats, stansions and every other piece of deck harware that through bolted through the deck with 5200. Never had a leak.
__________________
Kanani is offline   Reply With Quote
Old 11-02-2008, 18:24   #14
Registered User

Join Date: Feb 2007
Boat: 1973 Morgan 36T
Posts: 808
Images: 17
Kanani, I agree with you about the UV resistance and your point about using it on hatches, in 15 years I will worry about it, or more than likely someone else will have to deal with it. Since you are a self-proclaimed 5200 man . Have you ever had 5200 gas and bubble. I have, and that is one thing that annoys me about the product ?

Paul
__________________
Morgan Paul is offline   Reply With Quote
Old 11-02-2008, 19:58   #15
Registered User

Join Date: Jun 2005
Posts: 1,901
if you ever even have the slightest thought the the part might need to come off at some point in the future, use Life Caulk. Otherwise 5200 works great
__________________

__________________
never monday is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Question CptnLBS General Sailing Forum 4 21-01-2008 14:32
Have a question. jimini Liveaboard's Forum 3 07-12-2007 08:22
Question hatteras Meets & Greets 8 01-09-2007 02:34
cleaning caulk from gelcoat (turpentine, naptha or acetone?) schoonerdog Construction, Maintenance & Refit 4 19-04-2007 12:11
The best deck seam caulk chad.lawie Construction, Maintenance & Refit 5 07-02-2007 15:27



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 20:11.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.