Generic rubber wedges for mast support?

Nov 6, 2020
270
Mariner 36 California
Can anyone think of any reason why something like these inexpensive rubber wedges would not work as mast wedges at the deck opening? I would have to order a sample, but assuming the rubber is not too squishy i cant see a problem with them. or a similar type of wedge. Spar-Tite has a pourable rubber which i'm assuming is just a particular durometer cheapo urethane rubber but is $300. CR Marine also has rubber wedges that are not cheap either at $100. I like the CR Marine wedge, but i would have to hack it to pieces as my mast opening is not even gap. Something like these are already cut to perfect size.

 

LloydB

.
Jan 15, 2006
901
Macgregor 22 Silverton
No experience with a keel stepped mast but I would think a wrap around would work better than a few door stops for moisture protection because of the segmented nature of the stops. If the position of the mast is not in perfect alignment with the opening in the deck than individual wedges may be faster to set up but more prone to leak.
 
Nov 6, 2020
270
Mariner 36 California
No experience with a keel stepped mast but I would think a wrap around would work better than a few door stops for moisture protection because of the segmented nature of the stops. If the position of the mast is not in perfect alignment with the opening in the deck than individual wedges may be faster to set up but more prone to leak.
Thanks, yeah i agree and that thought crossed my mind, however I plan to follow the instructions on this page and have bought an SSI mast boot. The aluminum deck ring is already in place and bedded with Sikaflex. It has a 1.25" height flange that sticks up for clamping a mast boot. I plan to use Sikaflex under the boot/clamps and then tape over it. I'm hoping this would do the trick to seal out the water. I was going to use black locust for the wedges but this would be more expensive, time consuming and i'm not convinced any better than a dozen or so med/hard rubber wedges.

 
  • Like
Likes: LloydB