Member
· Västra Götaland
· 1 709 posts
This is not directly house-related, but I'll ask among all you experts anyway...
The mast on a sailboat is hollow and therefore rain can enter it from above. When the mast goes through the boat's roof and stands on the flooring below, you don't want the rainwater to reach all the way down. Therefore, during manufacturing, a piece is pressed up inside the mast (a little above deck level) and a drainage hole is drilled just above it.
I have such a construction that is not 100% watertight. I therefore want to spray in a compound/glue through the ventilation hole that will then settle on top of the "piece" and fill the gaps that are no longer watertight.
The question is thus simple: Can you suggest a suitable product for this? Something that comes in a tube would be perfect because then I have a good nozzle and pressure sprayer to get it in.
// Regards a house AND boat owner.
The mast on a sailboat is hollow and therefore rain can enter it from above. When the mast goes through the boat's roof and stands on the flooring below, you don't want the rainwater to reach all the way down. Therefore, during manufacturing, a piece is pressed up inside the mast (a little above deck level) and a drainage hole is drilled just above it.
I have such a construction that is not 100% watertight. I therefore want to spray in a compound/glue through the ventilation hole that will then settle on top of the "piece" and fill the gaps that are no longer watertight.
The question is thus simple: Can you suggest a suitable product for this? Something that comes in a tube would be perfect because then I have a good nozzle and pressure sprayer to get it in.
// Regards a house AND boat owner.
Polyester or epoxy might be the first thought. It flows so easily that it should be possible to pour it in with a funnel. It might be a bit tricky to get it to stick when you can't clean it beforehand. And it can shrink a little as it hardens, so there's a risk you'll end up with a gap around the plug anyway...
Hot glue? I've covered a larger surface by zig-zagging with a glue gun, and it manages to spread out before it solidifies. It's a bit trickier here, especially if it's an aluminum mast. But then you could probably preheat a bit with a heat gun beforehand.
As a landlubber, I have to ask a question: Does the opening at the top of the mast serve any function? It seems like it would be more sensible to plug it up there instead. Might be hard to reach...
Hot glue? I've covered a larger surface by zig-zagging with a glue gun, and it manages to spread out before it solidifies. It's a bit trickier here, especially if it's an aluminum mast. But then you could probably preheat a bit with a heat gun beforehand.
As a landlubber, I have to ask a question: Does the opening at the top of the mast serve any function? It seems like it would be more sensible to plug it up there instead. Might be hard to reach...
Two-component polyurethane foam for marine use with closed cells that do not absorb water should be perfect for this. I'm not directly aware of any Swedish retailers, but you should be able to find some if you search a bit. Here's an American one anyway:
http://www.marinefoam.com/polyurethanefoam.html
Otherwise, as Sparkz says, you can also fill with epoxy; perhaps laminating epoxy is most suitable for this as it is a bit more fluid. Marine epoxy can be ordered here, for example:
http://www.epoxibutiken.se/product_info.php?cPath=25&products_id=49
http://www.marinefoam.com/polyurethanefoam.html
Otherwise, as Sparkz says, you can also fill with epoxy; perhaps laminating epoxy is most suitable for this as it is a bit more fluid. Marine epoxy can be ordered here, for example:
http://www.epoxibutiken.se/product_info.php?cPath=25&products_id=49