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Author Topic:   Deck Caulking
OutrageMan posted 06-11-2001 06:04 PM ET (US)   Profile for OutrageMan   Send Email to OutrageMan  
The calk in the joints of my deck needs replacing. Two questions...

1) What is the recomended way of removing the old caulk?

2) Is 3m Marine Sealant 101 the right product to use to re-seal the joints?

Thanks,
Brian

lhg posted 06-13-2001 02:39 PM ET (US)     Profile for lhg    
Brian - there was a whole previous thread on this subject, somewhere on this Forum, and maybe in the OEM section, but I can't find it. Maybe it expired, and someone who can dig deeper than 365 days can bring it back up. It contained what you need, and my memory fails me!
OutrageMan posted 06-13-2001 09:04 PM ET (US)     Profile for OutrageMan  Send Email to OutrageMan     
Thanks Larry...

I have alread done the removal and new caulking. So far I am not very impressed with the 3M 101. It flowed very evenly and created a great bead. HOWEVER, it is nearing 36 hrs since I put it in, and it is still tacky! The package says "skin over" time is 5 hrs with 2-3 weeks for full cure. Well since this still tacky stuff is sitting in my driveway, it is picing all sort of detritus that is blowing all around the yard. The only saving grace is that it may dull the bright white to more of the off white of my deck.

Brian

Tom W Clark posted 06-13-2001 10:59 PM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     
Brian,

The deck joints were originally sealed with silicone. I'm sure the 101 will be fine though. I believe the 101 is a polysulfide which, like polyurethanes, cure by moisture. If you want to accelerate the cure you might try misting the seams with water.

OutrageMan posted 06-14-2001 06:56 AM ET (US)     Profile for OutrageMan  Send Email to OutrageMan     
Tom,

Interesting you would say this. My Father - The Great Harpoon - also mentioned this. Yesterday morning, the entire deck was covered with dew. Later in the day, I did not notice much improvement. I may try actually misting it directly.

Brian

lhg posted 06-14-2001 01:34 PM ET (US)     Profile for lhg    
I wish someone could find that old thread. I know that Dow almond colored silicone has been used by some, and it is not too bad of a match, but not exactly what Whaler used. Was it by Boat Life, maybe?

It might have been a special color, ordered by Whaler. I wonder what the CPD division is using?

james cosby posted 06-14-2001 04:27 PM ET (US)     Profile for james cosby  Send Email to james cosby     
I plan to replace the silicone pinstriping on my '71 Outrage. I found some sandable silicone deck seam sealant manufactured by Boatslife. They claim that it dries in 24hrs and can be sanded smooth. They also claim that the silicone is not damaged by teak cleaners or stains. Sold by Shoreway Marine. I though this might be easier to use than regular silicone since I would probably have the regular silicone everywhere except where I wanted it. I have also noticed that the original silicone tends to loosen when teak oil is applied to the teak hardware. If anyone is familiar with this product please let me know the results. Good luck JC.
DIVE 1 posted 06-14-2001 10:09 PM ET (US)     Profile for DIVE 1    
OutrageMan,
You have to let us know when the 101 sets up because(I hate to be the bearer of bad news) it usually takes 2-4 weeks for 101 to fully cure. As far as I know, silicone has always been the choice to fill the deck seams.
Jim
OutrageMan posted 06-15-2001 07:08 AM ET (US)     Profile for OutrageMan  Send Email to OutrageMan     
Well Jim...

It is now day 4 since I put in the 101. The stuff still has some tack to it, but it is getting better. I think it will be useable in about 3-4 more days.

There is one good thing happening. On the areas where some clean-up is needed, the caulk just rubs off with my finger, into a ball.

Brian

jimh posted 06-15-2001 09:07 AM ET (US)     Profile for jimh  Send Email to jimh     
Here is more information on "caulk" from a previous discussion:

http://continuouswave.com/ubb/Forum3/HTML/000054.html

--jimh

DIVE 1 posted 06-15-2001 10:18 PM ET (US)     Profile for DIVE 1    
OutrageMan,
You may be able to speed up the curing process by covering the seams with wet towels or rags. Just lay them on the seams and add more water every few hours.
Jim
OutrageMan posted 06-15-2001 11:30 PM ET (US)     Profile for OutrageMan  Send Email to OutrageMan     
It rained pretty heavy today. After the rain I poked at the caulk a bit, and it has toughened up quite a bit. I think between the dew and the rain, the moisture has helped quite a bit. The tube also talks about direct sunlight helping. I just wish we had some!

I think this will be some grat stuff once it cures.

It is obvious now that in terns of curing I could have made some better choices. However, it makes me think that because of the long baking time, and what chemical mfg can do to help this process, that it was intended for a much different purpose. Does anyone here know what 101 was initially intended for?

DIVE 1 posted 06-16-2001 06:35 AM ET (US)     Profile for DIVE 1    
OutrageMan,
3M 101 is generally used as a bedding compound for parts that may need to be removed in the future. We use it on cleat screws, deck screws, engine mounting bolts, etc.
Jim

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