Chainplates

[shine]

I drilled out rivets and installed machine bolts. I used butle and it still lets in water. I’m considering cutting a small section of rubrail off glassing over the holes and mounting chainplates on outside of hull. What do my good friends on this forum think about that. Am I crazy. The port side doesn’t leek right now.

 

[justsomeguy]

I used butle and it still lets in water.

Yeah, maybe butyl isn't the best thing for Mac chainplates. Have you tried 3M 4200 or Lifecalk?

 

[dmax]

If butyl is leaking then you didn't seal it correctly or you something's moving - countersink/bevel any holes and make sure you have good coverage. Gradually tighten it up over several days to allow the butyl to work in and ooze out. Will not leak.

 

[chp]

I did mine about 7 years ago and never had a leak since. I jammed a lot of butyl into the gap around the chainplate.

 

[shine]

I have tried butyl twice on starboard side with no luck. I think in the spring I will give the 4000 or 4200 a go. Thanks for the reply’s.

 

[Project_Mayhem]

If you post a picture we may be able to identify why the butyl isnt working. It's usually much easier to work with than 4200

 

[justsomeguy]

Butyl needs to be compressed to get a good seal.