SailNet Community - View Single Post - Mast boot sealer???
View Single Post
post #2 of Old 09-16-2005
Jeff_H's Avatar
Join Date: Feb 2000
Location: Annapolis, Md
Posts: 7,394
Thanks: 10
Thanked 234 Times in 185 Posts
Rep Power: 10
Mast boot sealer???

The material that you are talking about is called ''Spartite''. West Marine still carries it

That said, Spartite is not a waterproof system. Spartite is only a mast partner wedge replacement system. I.E. When you have a keel stepped mast, it should be ''blocked'' at the deck to minimize differential movement. Historically this was done with cedar or other softwood wedges. Direct contact between aluminum and the softwood wedges was less than ideal and so high density urethane foam has become the preferred wedge material. This is a bit hard to shape and install and so Spartight created a poured in place material.

Properly installed Mast boots should not leak if the mast in properly blocked to minimize movement. That said, by their very nature keel stepped masts almost have to leak because water enters the mast at the sheeve boxes and has no where to go but out at the mast butt and below deck wire penetrations.

Jeff_H is offline  
Quote Share with Facebook
For the best viewing experience please update your browser to Google Chrome