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5200 paint

One part science, five parts experimentation. Every wood boat veteran has their secret recipe for a showy finish. Share your trials and triumphs.

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trebot
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5200 paint

Post by trebot » Sat May 18, 2019 7:16 am

Did some bottom seam filling with standard cure 5200. How long to wait until I can paint? Boat is outside in 45 to 60 degree temps. Thanks

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tkhersom
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Re: 5200 paint

Post by tkhersom » Sat May 18, 2019 3:40 pm

Sounds like it is too late for this comment, but 5200 should not be used as a seam seal, In My Humble Opinion.

Dig it out before it dries if you can.
Troy in ANE - Former President CCABC

1957 CC 21' Continental "Yorktown" (Mom's boat)
https://www.chris-craft.org/boats/22625/
1985 Formula 242LS "Gottago"
1991 Formula 36PC "Band Aids"

Life Is Too Short To Own An Ugly Boat

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mbigpops
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Re: 5200 paint

Post by mbigpops » Sat May 18, 2019 8:21 pm

5200 expands as it dries and can put stress on the nearby wood planks.

I guess it depends how much you applied to the joints.

If you end up leaving it then you should wait 2 or 3 days and then look at the seams and see if the 5200 is proud of the joints. You may want to trim it flush before painting.

Mark
1953 CC Rocket Runabout "Rocket Man"

jfrprops
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Re: 5200 paint

Post by jfrprops » Sun May 19, 2019 8:14 am

I am with Troy....and most old timers. John in Va
1980 Fairchild Scout 30
19?? custom Argentine Runabout 16'
1954 Whirlwind deluxe dual ckpt 16'
1921 Old Town Charles River 17' (founding Captain, James River Batteau Festival)

trebot
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Location: Lexington, Michigan
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Re: 5200 paint

Post by trebot » Sun May 19, 2019 5:22 pm

I get the impression that there is disagreement with the 5200 idea. Here's what I did.
Actually, I took a Dremel with cone shaped bit and took out about 1/8" to 1/4" deep surface valley between planks. Filled "valley" with 5200. Didn't force it, just let ut flow as you would do with caulking. Wiped down and cleaned up excess with acetone. Smooth surface: no sanding required. Been sitting 3-4 days with no changes in surface.

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tkhersom
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Re: 5200 paint

Post by tkhersom » Sun May 19, 2019 6:04 pm

The trouble is not the expansion of the 5200 (IMHO), but when the wood swells it will expand and 5200 does not give so you may end up with buckling or other problems.

Most boats under 30' don't need any caulk at all, just some pre-soak to swell the wood before launch.

If one does need to caulk one should use a pliable product that never really hardens like Davis - Slick Seam.

Again this is just my opinion. I am not a professional restorer and do not do this for a living.
Troy in ANE - Former President CCABC

1957 CC 21' Continental "Yorktown" (Mom's boat)
https://www.chris-craft.org/boats/22625/
1985 Formula 242LS "Gottago"
1991 Formula 36PC "Band Aids"

Life Is Too Short To Own An Ugly Boat

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mbigpops
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Re: 5200 paint

Post by mbigpops » Mon May 20, 2019 1:48 pm

Okay so what did you remove with the dremel bit ? Wood ? 5200 ? Something else ?

Are your bottom planks fairly new and sealed properly or old and still swell when wet ?

Mark
1953 CC Rocket Runabout "Rocket Man"

jfrprops
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Re: 5200 paint

Post by jfrprops » Mon May 20, 2019 3:19 pm

5200 is an adhesive not a caulk. I get why folks try it, but I am scared of it in that application.
John in Va.
1980 Fairchild Scout 30
19?? custom Argentine Runabout 16'
1954 Whirlwind deluxe dual ckpt 16'
1921 Old Town Charles River 17' (founding Captain, James River Batteau Festival)

trebot
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Re: 5200 paint

Post by trebot » Mon May 20, 2019 4:47 pm

The bottom appears that it might be original. Most planks were tight; some had 1/16 to 1/8" gap. Used dremel sparingly. Didn't push 5200 into seams, so I'm not too worried about expanding planks buckeling.
The boat is trailered , so don't have luxury of soak. As hull has plywood inner liner, just want to get hull as leak free as possible. We'll see how this whole thing works out when we get her in the water.

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mbigpops
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Re: 5200 paint

Post by mbigpops » Mon May 20, 2019 5:06 pm

Okay Troy - you win. You must be psychic.

Mark
1953 CC Rocket Runabout "Rocket Man"

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tkhersom
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Re: 5200 paint

Post by tkhersom » Mon May 20, 2019 5:30 pm

mbigpops wrote:
Mon May 20, 2019 5:06 pm
Okay Troy - you win. You must be psychic.

Mark
Not psychic, just dealing with old original style bottoms myself. One of the challenges with forums is we all give advice from the experience we have and often don't have enough information to give educated advise. Had this actually been a newer 5200 bottom I would have been off.

Overall I agree with John. 5200 is an adhesive not a caulk. If you want to use a caulk from a tube I would consider Boat Life - Life Caulk. Far more flexible when it is dry, but I still prefer Slick Seam. :wink:
Troy in ANE - Former President CCABC

1957 CC 21' Continental "Yorktown" (Mom's boat)
https://www.chris-craft.org/boats/22625/
1985 Formula 242LS "Gottago"
1991 Formula 36PC "Band Aids"

Life Is Too Short To Own An Ugly Boat

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tkhersom
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Re: 5200 paint

Post by tkhersom » Mon May 20, 2019 6:02 pm

trebot wrote:
Mon May 20, 2019 4:47 pm
The boat is trailered , so don't have luxury of soak.
I soak with a garden hose. Spraying the hull inside and out (not filling the boat with water) while on the trailer.
Troy in ANE - Former President CCABC

1957 CC 21' Continental "Yorktown" (Mom's boat)
https://www.chris-craft.org/boats/22625/
1985 Formula 242LS "Gottago"
1991 Formula 36PC "Band Aids"

Life Is Too Short To Own An Ugly Boat

jfrprops
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Joined: Thu Dec 29, 2005 10:41 pm
Location: Powhatan Courthouse Virginia
Contact:

Re: 5200 paint

Post by jfrprops » Mon May 20, 2019 6:13 pm

soaker hose inside....will help an amazing bit.
John in Va.
1980 Fairchild Scout 30
19?? custom Argentine Runabout 16'
1954 Whirlwind deluxe dual ckpt 16'
1921 Old Town Charles River 17' (founding Captain, James River Batteau Festival)

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