urethane foam

I read it as the boat being 2000 lbs

 

my English is disgusting ...
maybe I'm the one who did not understand

 

The boat is a 16 ft Trihull with an 85hp 1974 mercury.what. do I need to keep it afloat? Can I put boyancy on the sides versus under deck?

 

can u post a picture?

 

I will try to take a pic.I could be wrong with 2000 lb weight.however the boat is 16 ft x4 ft 10 inx24 in sides

 

try to take a pic

 

It originally had foam under deck and foam panels on the sides. I want to build a custom fishing boat.I need to know what I need for flotation

 

Layout perfect if superior deck!


u have to put bottles as high as possible.

have plant of the boat u want to build?

 

You want to use rigid stryofoam. The floating docks use the blue stryofoam. When I put it under my dock 30 years ago it was brown in color. You can order it in any sizes and thickness or use standard dock billits and cut them yourself. It never absorbs water but needs to be protected from UV rays. 1 cubic foot floats 55 pounds. Does not rot and lasts forever.

 

sure, blue stryofoam is ok. it is extruded polystyrene.
Bottles cost less and are lighter.
In Europe we have also square bottles, 1.5l.
On my shallow water boat I put them.

 

I was only joking about using the bottles.I will put styrofoam planks in the side.will that suffice?I don't want to put flotation in the Hulll.my deck is already cut and laid on the stringers not screwed down Or glassed yet ,

 

on my boat i've bottles.
they're ok, believe me.

 

That is what I estimated. I said $20.00 worth which works out to 400 bottles at 5 cents return each. Fewer if you buy the bottles from a redemption center for 7 cents each. From about one kilogram each you get a total of 800-900 lbs positive flotation. Just about right for that weight/type of boat.

 

Use bottles (cheap, effective, available everywhere). They are SUPERIOR to foam, which is expensive and gets water-logged eventually unless you spend a lot of money, which you are welcome to do...). Water-logged foam is far worse than no flotation at all. Just because it's not a product you can buy from a marine supply is a poor excuse to avoid using it.

 

Someone spoke of 2000 lbs? For the load?