Through-the-Roof Sealant

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CaspersCruiser

Well-known member
Joined
May 11, 2016
Messages
919
Fluid Motion Model
R-27 Classic
Hull Identification Number
FMLT2709G112
Vessel Name
Cookie
MMSI Number
368203460
What sealant is used in the pass-through holes on the roof of a 2012 vintage R27? The sealant around the TV antenna cable has developed a gap and I'd like to fill it in. The existing sealant is white and incredibly pliable even though it is going on seven years old.
 
CaspersCruiser":1sfoaex3 said:
What sealant is used in the pass-through holes on the roof of a 2012 vintage R27? The sealant around the TV antenna cable has developed a gap and I'd like to fill it in. The existing sealant is white and incredibly pliable even though it is going on seven years old.
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Hello,

I am not sure exactly what we were using back then but now we are using Silkaflex 291 white in color. If you are not able to track down you could use 3M 5200 in white color as well. Let me know if you have any questions.

Thank you,
Kevin Lamont
 
Or the 3M 4200, if you ever think you may need to remove it. I have used both and like the consistency and cure rate of the 4200, unless you need the staying power of the 5200. Both apparently also come in the ‘fast cure’ version, although I couldn’t actually get my hands on the 5200 fast cure. I recently resealed a ‘farm house style’ soapstone sink with the 5200. Took about five-six days to be tack free, but man is that stuff hard and it formed an absolutely water tight seal.
 
handily you can buy the 4200 fast cure in a small tube rather than the bigger trigger style tube. useful for smaller jobs.

westmarine and fisheriessupply sell both sizes
 
I was unclear in my original post. The sealant I’m talking about is more like putty and it is used to seal around wires and wire bundles coming through roof under the tunnel that runs from the mast back to the stack. The Sikaflex sealer, 3M 4200, and Life Seal is more for sealing and bedding fixtures and such. This photo shows the putty-like substance that encases the spotlight and radar wire bundles coming through roof just aft of the mast. The mast and tunnel are removed in this photo.

017_C5497-08_E5-4179-8_D86-17_CD0_F15_A4_E5.jpg
 
Thanks, everybody!
 
Be sure to seal all screws that’s were removed on the mast and tunnel and stack assembly. I have used Life Seal for this application . Failure to do so will result in leaks inside the cabin and drive you crazy trying to find the source.
 
Brian B":3uvn5br7 said:
Be sure to seal all screws that’s were removed on the mast and tunnel and stack assembly. I have used Life Seal for this application . Failure to do so will result in leaks inside the cabin and drive you crazy trying to find the source.
Click to expand...
Will do. I won’t ask how you know!
 
CaspersCruiser":gsdj6lhm said:
Brian B":gsdj6lhm said:
Be sure to seal all screws that’s were removed on the mast and tunnel and stack assembly. I have used Life Seal for this application . Failure to do so will result in leaks inside the cabin and drive you crazy trying to find the source.
Click to expand...
Will do. I won’t ask how you know!
Click to expand...

Just another Ranger Tug learning experience.
 
I figured out the sealant after I removed a gob of it. It’s caulk. Exactly what kind, I don’t know. I used DAP Dynaflex Ultra to replace it.
 
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