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 Rebedding Plastic Clutch and Winch
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redeye
Master Marine Consultant

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3471 Posts

Initially Posted - 03/03/2023 :  13:23:31  Show Profile  Reply with Quote
I have "plastic" winches and clutches on the cabin top and slightly remember being advised NOT to use a polysulfide product to bed these.

What would you advise ( all youse ) as a bedding compound?


I would think Butyl would be fine, but not clear on that.


Thank You

regards.ray

Ray in Atlanta, Ga.
"Lee Key" '84 Catalina 25
Standard Rig / Fin Keel

islander
Master Marine Consultant

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USA
3975 Posts

Response Posted - 03/03/2023 :  14:29:41  Show Profile  Reply with Quote
Ray, 3M 4000UV is recommended for bedding ABS, Lexan and other plastics. It's a Polyester adhesive sealant and yea, Polysulfides will melt plastics.

Scott-"IMPULSE"87'C25/SR/WK/Din.#5688
Sailing out of Glen Cove,L.I Sound



Edited by - islander on 03/03/2023 14:34:21
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Steve Milby
Past Commodore

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Response Posted - 03/03/2023 :  15:51:59  Show Profile  Reply with Quote
I like butyl tape for most applications, especially small jobs. It's neat and easy to use and doesn't smear like caulk sometimes does if you apply it too generously. Also, butyl tape has a long shelf life. Marine caulk is expensive, and, unless I'm doing a big job, I use a little from a full tube, and the rest hardens before I need it again.

Steve Milby J/24 "Captiva Wind"
previously C&C 35, Cal 25, C25 TR/FK, C22
Past Commodore
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islander
Master Marine Consultant

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Response Posted - 03/03/2023 :  16:42:32  Show Profile  Reply with Quote
Sorry Ray, I should have mentioned Butyl tape so Ditto what Steve said.

Scott-"IMPULSE"87'C25/SR/WK/Din.#5688
Sailing out of Glen Cove,L.I Sound


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Volksaholic
1st Mate

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50 Posts

Response Posted - 03/03/2023 :  18:19:04  Show Profile  Reply with Quote
I first read Steve's post as "it's fun and easy to use" and I thought... yeah, it is. Kinda like silly putty. :P

Paul
1981 Catalina 25 TR/FK
Soon to be named either Fiddler's Dream or Fool's Errand depending on what it takes to get her into shape
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Stinkpotter
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Djibouti
8948 Posts

Response Posted - 03/04/2023 :  14:38:27  Show Profile  Reply with Quote
quote:
Originally posted by Steve Milby

...Marine caulk is expensive, and, unless I'm doing a big job, I use a little from a full tube, and the rest hardens before I need it again.

Steve, try putting the cap back on... (I have a decrepit, 5+ year-old tube of Life Caulk that still works. No good for plastic though...)

Dave Bristle
Association "Port Captain" for Mystic/Stonington CT
PO of 1985 C-25 SR/FK #5032 Passage, ex-OUPV,
Now on Eastern 27 $+!nkp*+ Sarge
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redeye
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Response Posted - 03/04/2023 :  19:21:54  Show Profile  Reply with Quote
Cool Thanks everyone... always great to get steering without having to do 5 hours of research.


<<< try putting the cap back on >>>

Yepper.. I put the cap back on and if I want to use a tube again I usually hafta pull the cap off and drill it out to get to anything usable...


All the butyl tape I've used has stayed stable up untill I've used it, so I'm a fan....

regards.ray

Ray in Atlanta, Ga.
"Lee Key" '84 Catalina 25
Standard Rig / Fin Keel

Edited by - redeye on 03/04/2023 19:25:46
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Steve Milby
Past Commodore

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5800 Posts

Response Posted - 03/05/2023 :  08:14:42  Show Profile  Reply with Quote
quote:
Originally posted by Stinkpotter

quote:
Originally posted by Steve Milby

...Marine caulk is expensive, and, unless I'm doing a big job, I use a little from a full tube, and the rest hardens before I need it again.

Steve, try putting the cap back on... (I have a decrepit, 5+ year-old tube of Life Caulk that still works. No good for plastic though...)


This quote is from the Boatlife website. Boatlife is the manufacturer of Lifecalk.

"GUARANTEED FACTORY SHELF LIFE: Life-Calk, Life Seal, Silicone sealants Ė One year from date of manufacture."

FWIW, I re-cap tubes of caulk.

Steve Milby J/24 "Captiva Wind"
previously C&C 35, Cal 25, C25 TR/FK, C22
Past Commodore
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Voyager
Master Marine Consultant

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5164 Posts

Response Posted - 03/06/2023 :  21:17:03  Show Profile  Reply with Quote
Yeah Steve, Iíve had mixed results with polysulfide caulk. One time I used about 1/2 the cylindrical tube using my caulk gun, then I tried to seal the tube on both the nozzle end and the back plunger end. Next time I went back later in the same year, it hardened in the back, but I could still use a few tablespoons of soft caulk in the front. Another time, I bought a plastic tube and it stayed ok until the next spring. Another time, I bought a tube but didnít use it that year. The next year it was as hard as a rock. I took it back to the store with a receipt and thankfully, they let me swap it for another tube.
Itís great stuff for the purposes when you apply it promptly, but donít count on it having much shelf life. You might get lucky like Dave, but donít count on it. Buy it when you need it.

Bruce Ross
Passage ~ SR-FK ~ C25 #5032

Port Captain ó Milford, CT
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bigelowp
Master Marine Consultant

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1700 Posts

Response Posted - 03/18/2023 :  14:16:26  Show Profile  Reply with Quote
"GUARANTEED FACTORY SHELF LIFE: Life-Calk, Life Seal, Silicone sealants Ė One year from date of manufacture."

Hmm, Mfg, then in Mfg inventory for a month or so, then shipped to retailer where it sits on the shelf for ??? then bought with . . . . .one month left in "guarentee". For projects such as rebidding I buy when I am doing job!

Peter Bigelow
C-25 TR/FK #2092 Limerick
Rowayton, Ct
Port Captain: Rowayton/Norwalk/Darien CT
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