Caulking my boat?

Question

What type of caulk do I need to seal holes and weather proof mounts on the top side of my fiber glass ocean cruiser boat?

Answer 1

3M has a product known as 5200 see this link:

http://solutions.3m.com/wps/portal/3M/en...

Another product is known as Marine 101 sealant and here is that link...

http://solutions.3m.com/wps/portal/3M/en...

Answer 2

There are several different products for this, each has it's place.  Don't forget, bedding compound stays soft and seals bolted on equipment.  RTV and  Polysulfied are used to "caulk" !    Other products like marineTex are pretty good hole fillers.  So, read up on each and pick the best one for each application.

Answer 3

5200 is good if you never want it apart> I use marine silicone> It holds up good> Hole use a putty as most caulks don't hold in holes & they don't smooth out>