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Old 31-01-2014, 06:34   #1
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ferro cement

hi all am new to this site , how ever am proud owner of Hartley Fijian ketch built professionally in new Zealand in 1988 , needs extertnal repaint and am considering soda blasting for removal of existing paint , any help comments appreciated paul t
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Old 31-01-2014, 07:30   #2
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Re: ferro cement

Greetings and welcome aboard the CF, Paul.
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Old 31-01-2014, 07:50   #3
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pirate Re: ferro cement

Hi Paul.. Welcome to CF..
Very few Ferro owners here methinks.. might find more info here..
https://groups.yahoo.com/neo/groups/...tions/messages
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Old 31-01-2014, 08:16   #4
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Re: ferro cement

I own a Ferro 35' Endurance cutter. Very strong material. I love my floating sidewalk.
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Old 17-02-2014, 04:11   #5
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Re: ferro cement

I have no idea about soda blasting but sandblasting is extremely dangerous to a ferro hull. In the right hands, it might just work, but if not, your boat will never be the same again. A bit too hard for a moment too long and you have a lot more problems on your hands than before.

I have a ferro boat and although I have never sandblasted it, I've heard very few happy endings about it and quite a few sad ones. Like I said, I don't know about soda blasting particularly.

Billy
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Old 17-02-2014, 05:21   #6
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Re: ferro cement

Soda blasting is very similar to sand blasting, but much, much gentler.
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Old 17-02-2014, 05:52   #7
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Re: ferro cement

I have a ferro boat and am just going through the process now. I am only sanding and scraping the paint off. I have an expoxy undercoat which I dont want to damage. Its not that hard really but depends on how much time you have.
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Old 17-02-2014, 15:21   #8
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Re: ferro cement

Quote:
Originally Posted by billy4184 View Post
I have no idea about soda blasting but sandblasting is extremely dangerous to a ferro hull. In the right hands, it might just work, but if not, your boat will never be the same again.
This is confusing.... first you say you know nothing about soda blasting, then go on to say sandblasting is dangerous...
I mean, if one can soda blast a fibreglass boat without any problems, why not a ferro? I wouldn't think of sanblasting anything but a steel boat.

Quote:
Originally Posted by a64pilot View Post
Soda blasting is very similar to sand blasting, but much, much gentler.
Right, it is high pressure air with an infusion of sodium bicarbonate for abrasion.

I am having my boat soda blasted this spring and have done some homework. While this will remove the bottom paint, it will cause no harm to the substrate - and I have seen a boat right after the job was done.
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Old 17-02-2014, 15:39   #9
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Re: ferro cement

I've seen soda blasting on various restoration project, in skilled hands you should be fine, however a glance at warranty and insurance of the service provider would be prudent to say the least... Where are and can I speak to previous clients... An ounce of prevention...
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Old 17-02-2014, 17:17   #10
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Re: ferro cement

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This is confusing.... first you say you know nothing about soda blasting, then go on to say sandblasting is dangerous...
I don't see what is confusing about this.

Good luck with soda blasting your boat, I might give it a go one day if I look into it and find it is safe.

One must be careful with ferro boats as what comes off cannot simply be glued back on.

Billy
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Old 17-02-2014, 17:45   #11
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Re: ferro cement

The risk is contamination of the cement surface to the extent that it may affect the bonding of new paint.

This link seems to say it is OK; Soda Blasting Concrete - The Concrete Network

Good luck it sound good, especially the alkaline part.
Two great Hartley Fijians 50 odd metres from me.
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