Steel boat repair

[bricklin]

Anyone out there could advise on what to order and how to repair.
I was told to make sure not to order isapon car filler to hard and brittle .
This was painted only 2.5 years ago !
Steel boat

 

[bricklin]

Photo attached

 

[bricklin]

Photo

 

[bricklin]

Problems attaching photo

 

[bricklin]

Photo attached

 

[Caraway]

not too clear what we are looking at.

 

[Bajansailor]

What type / make of boat is she, and how old is she?

Can you post a better photo than the one above?
Is this just one isolated area in need of attention, or are there other areas as well?

 

[bricklin]

About 5 areas , each one about 4 inch by 5 inch , looks like paint cracked for unknown reason. Older steel boat , but was painted about 2/3 years ago . It looked good at the time but even weeks after the job the fenders were rubbing the paint . That stopped after a few weeks. Then these cracks appeared within 4 months .
I will post up more photos today , for now it seems l will have to tackle some repair job on areas to take bad look off it.
Disappointing , as l paid good money for the job at the time.

 

[penfold]

Paint takes months to fully harden unless baked, the painter should have advised you of this.

 

[bricklin]

See typical crack on blue paint between two fenders . More decent photos to follow

 

[Caraway]

Initially I would suggest you get someone knowledgable to look at the boat. You may be pissing in the wind asking for opinions on here with just images which don't really show the nature or extent of the problem.
One thing is for sure is that filler is not the solution.
Penfold is right. Fresh paint will scuff easily.

 

[Mark26]

I too have an older (30 years) steel boat and have recently paid a lot to have it painted only to be very disappointed with the results, just one year on.

I’ve not got the same problem as you, but as far as I can make out all paint problems are down to either poor preparation or poor environment conditions at the time of painting - temperature and humidity.

You have a coating failure which can only be due to poor application methods.

The cracks on yours looks to me like it has filler under the paint which in an ideal world shouldn’t be there unless there was a large dent in the steelwork. The paint has obviously come away from the substrate which ideally should have been sanded back to clear metal, primed, undercoated, etc and then you wouldn’t have the problem.

I’d try not to repair it with more filler. Any patch-up repair will eventually go the same way. Take it back to bear metal (just the problem area) prime, undercoat, using multiple coats to build thickness if necessary, at least three coats of top coat, applied at the correct time intervals under the right conditions. The result will be a coating that does adhere to the boat and does what it should do.

 

[Mark26]

Just read through posts I missed whilst writing.
Yes paint (single pot enamel, which is air cured) does take months to harden properly, fender areas are particularly vulnerable to damage, always keep fenders clean, crud from lock walls etc left to dry on fenders will grind away at the paint.

 

[bricklin]

I too have an older (30 years) steel boat and have recently paid a lot to have it painted only to be very disappointed with the results, just one year on.

I’ve not got the same problem as you, but as far as I can make out all paint problems are down to either poor preparation or poor environment conditions at the time of painting - temperature and humidity.

You have a coating failure which can only be due to poor application methods.

The cracks on yours looks to me like it has filler under the paint which in an ideal world shouldn’t be there unless there was a large dent in the steelwork. The paint has obviously come away from the substrate which ideally should have been sanded back to clear metal, primed, undercoated, etc and then you wouldn’t have the problem.

I’d try not to repair it with more filler. Any patch-up repair will eventually go the same way. Take it back to bear metal (just the problem area) prime, undercoat, using multiple coats to build thickness if necessary, at least three coats of top coat, applied at the correct time intervals under the right conditions. The result will be a coating that does adhere to the boat and does what it should do.

Thanks for reply, l think your correct .
Something must of went wrong with the whole project . As for getting experts , well that’s what l thought l was getting , obviously not.
Can l post u a few more photos , not sure if paint will build it up

 

[bricklin]

Initially I would suggest you get someone knowledgable to look at the boat. You may be pissing in the wind asking for opinions on here with just images which don't really show the nature or extent of the problem.
One thing is for sure is that filler is not the solution.
Penfold is right. Fresh paint will scuff easily.

Thank you for reply , it’s a little nightmare not long after paying good money for project

 

[PCUK]

Assuming damage is cosmetic, grind back to clean metal, prime with epoxy primer and then fair with marine epoxy filler. Prime again and paint with matching type/colour paint. Any filler (even Isopon) properly applied should not crack unless the underlying metal is damaged.

 

[bricklin]

Thanks for reply, l think your correct .
Something must of went wrong with the whole project . As for getting experts , well that’s what l thought l was getting , obviously not.
Can l post u a few more photos , not sure if paint will build it up

 

[bricklin]

Assuming damage is cosmetic, grind back to clean metal, prime with epoxy primer and then fair with marine epoxy filler. Prime again and paint with matching type/colour paint. Any filler (even Isopon) properly applied should not crack unless the underlying metal is damaged.

 

[bricklin]

Thank you for information

 

[Caraway]

Sorry to say it looks like the coating is not keyed to the metal. It has "popped" off without any apparent stress applied. If you address the areas you know about you will be waiting for new ones to show up in the future.

My guess is that you are looking at blasting to the substrate and a new (epoxy) coating applied under controlled conditions.