painting inside steel boats

[jamied]

Hello

I am painting inside a steel hull boat, with many new metal plates and some old metal as well.

I am very confused as to what paint to use
The options are
Fish oil paint (high oil content)
Epoxy two packs paints
cold tar epoxy
etc

I can't decide what to use, what do they use on ships etc for maximum life??


any advice would great

Cheers Jamie

 

[ianabc]

The generally accepted methods are :
(1) Sanndblast (wearing prper resperator that includes a prefilter and carbon folter, eye protection etc.

(2) Black grit (grit made from slag) is acceptable and prefered for safety as silica / sand is extremely toxic!

Severe and irreversible lung damage is sure to follow inhalation of micron sized sand particles!

(3) Blast to grey metal. Difficult to get at behind the girders and we used a small blaster and a mirror and then a die grinder to loosen up the loose rust. We managed to remove all of the rust but it took many hours.

(4) Immediatly protect grey metal blasted surface with prper zinc rich coating such a Primacon available in the U.K. 5 thin coats and the first coat within minutes of blasting.

(5) For underwater parts, 5 coast of epoxy. We use white, then add a small amount of red acrylic model paint to tint to a touch of pink! for the second coat ...thn blue then white to 5 coats.

(6) Standard practice in the marine industry coastguard / navy etc is 5 coasts of primer and then 5 of epoxy.

We phoned industrial paint supplier and purchased 20 gallons of epoxy at one time and 2 part zinc.

You can choose organic and inorganic zinc in either an epoxy base of as a one part paint.

Hope this help!

( We are near completing a 37 foot steel sailboat.)

Ian

 

[BrianJ]

Jamie,
Really good advice from Ian.if I were you I would follow his instructions. I also like the black tar... I splashed it around liberally in my 36' steel yacht.
Good luck
BrianJ