hull paint?

J

jaycee

Well-Known Member
Joined
4 Mar 2003
Messages
94
Location
IRELAND(S.W.)
Visit site
hello,currently my hull looks a bit tired,a friend who is accomplished at spraying motor cars is willing to respray my boat(grp) in the same colour,however, he is unsure of motor car paint and marine paint plus primer.any thoughts?
 
Unless you want an automotive type gloss finish, Dulux Weathershield on top of Dulux Super Grip primer will do a super job on lightly abraded gelcoat.

Don't use Weathershield from B&Q - go to a Dulux Decorator Centre and they'll mix it up in any colour you want. Super Grip primer is only available in the trade range anyway.

I wouldn't bother spraying either - apply thin coats with a small foam roller and nobody will know the difference if they're more than three feet away. Well, it worked for us!

(Also Weathershield makes it cheap and easy to touch up the inevitable chips and scrapes.)
 
If you have an offer from a good sprayer it has to be worth going with a proper marine 2 pack polyurethane. There are several available but don't go for Awlgrip acrylic just because it's 2 pack - much softer than polyurethane.
Car paint won't stand up to marine conditions and will fade and lose gloss too quickly
 
I've used Jotun paints before (google shepherd marine) if you use their Pengaurd epoxy paint as an undercoat it will give you good adhesion to GRP as well as protection from osmosis!
I think they have a good range of top coats too so you could avoid using car-type paints.
 
My friend used a 2 part mix paint sprayed on with a low volume spray unit, it took about 4 hrs to spray the enire hull. Then another day to clean the drift off the boat standing about 100 yds away.

I prefer to put the weathershield paint on with a roller and then flat it off with a brush for a gleaming finish.
 
Also have a look at alexseal

Very simular to awlgrip (linear polyurethene)
and both were originaly designed for painting aircraft.

One problem with both awlgrip and alexseal is the ability to repair dings auch that the repair cannot be seen. You will not quite get back to the original shine with cutting compounts and polish.
 
I painted my boat with regular Awlgrip on a 'high-build' epoxy primer. I rolled it on using West Epoxy foam rollers and tipped it off with the same roller as soon as it had begun to form bubbles. Since I was in Trinidad I used more than the normal 'Brushing Thinner' ... about 40% if I remember correctly.

The finish was perfectly smooth and much better that the local 'professional' spray painters. It obviously took longer ... I could only put on one coat in 24 hrs, but all the paint went on, it only cost me my time, and the paint job is still good today (apart from a few dings) 7 years after I painted it.

As with any paint job ..... the longevity and quality of the top-coat relies on the care and quality of the preparation and primer. I've seen many spray finishes fail after only a couple of years due to poor preparation or too thin a coating ...... and many with orange peel effect too ...... URGH!!
 
You must log in or register to reply here.

Share this page

Top