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Old 08-26-2015, 05:19 PM   #21
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In Sydney, guys such as "Sodablast" will strip an IG36 for around AUD $2500 (still at/above parity). He arrives in a custom fitted truck,sets up screening,takes half a day,(our all over hard sand took me, and my better half, a weekend), works relatively quietly,recovers the grit material,cleans up,and leaves a hull ready for whatever work is required. Shipwrights working on my hull said, in hindsight, it was the better way. BruceK

Bruce: what made you soda-blast before anti-fouling? Did you have blisters to repair? Just wondering if there's a point in a non-blistering hull's life when taking back to bare is recommended.
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Old 08-26-2015, 05:45 PM   #22
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Bruce: what made you soda-blast before anti-fouling? Did you have blisters to repair? Just wondering if there's a point in a non-blistering hull's life when taking back to bare is recommended.

Often a boat hasn't had an ablative type paint on it and there are so many layers it is weight, roughness and the inability to get new paint to hold on that causes people to blast or grind down.

No absolutes...just when it feels right.
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Old 08-26-2015, 06:09 PM   #23
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If I remember correctly they said $8500 for sodablasting. So it doesn't 'feel right' just yet.

If the pressure wash removed a bunch of layers and exposed gel coat then I just scraped any additional loose bits off, smoothed the edges a bit and put on some Primocon before antifouling. Sure it isn't perfectly smooth but I'm not racing anyone anywhere.
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Old 08-26-2015, 08:08 PM   #24
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Bruce: what made you soda-blast before anti-fouling? Did you have blisters to repair? Just wondering if there's a point in a non-blistering hull's life when taking back to bare is recommended.
We didn`t, but wished we had. The "quote" was from the SodaStrip man doing another boat at the yard. We did have plenty of blisters to repair, the post repair full dry sand was worthwhile but a truly nasty job, even with face masks. Before I bought, the hull had been soda stripped and antifouled, the blisters exposed were mostly just left(!), a few were bogged, 20K came off the price post survey. The bill/receipt for the prior work was "misleading", as the deceased owners son and I discovered together.
If you get a significant antifoul build up it is worth stripping to get back to a fair surface. It made a big difference with a yacht I had years ago, much quicker. It is usually followed by an epoxy coat if taken right back, and protective coats to prevent osmosis, before the a/f. I think it gets to a point where you have to do it, if you can save getting to that by sanding and or ablative a/f, do.
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Old 08-26-2015, 09:03 PM   #25
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Looks like you're doing a pretty thorough job
I helped a buddy re do the bottom on his 39' sailboat.

For the quote that he'd gotten, we all agreed afterward that next time we'll all pitch in and hire it done. I'm getting too old for this crap

I'm with psneeld though, don't just plop down your hard earned coin and walk away. Either supervise each steep, or sub it out.

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Old 08-26-2015, 09:19 PM   #26
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Sand blasted her bottom to fix a couple of spots and make sure there weren't any others hiding. Think it was $50 per hour plus the sand, less than $500.


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Old 08-26-2015, 09:31 PM   #27
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What about one of those soda blasting outfits that uses a pressure washer.Would that be cheaper?It's a one time investment except the soda needed.
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Old 08-27-2015, 02:42 AM   #28
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The soda blast guys here set up a tent thing, and collect the blasting agent. It`s a clean tidy process, they are all set up and have a special truck with everything they need.
Someone sandblasted a steel boat next to mine when it was in a shed for osmosis work etc. The noise and the mess were horrendous, it took forever to get the boat clean. (It was at the old Halvorsen factory site at Putney.)
That sounds like a great deal Ted. Nothing gets done to a boat here for $50ph. A Sodablast job for my boat was estimated at $2500 "cash".
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Old 08-27-2015, 02:50 AM   #29
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I haul out annually, for bottom inspection, paint and zinc work as/if needed, and prop treatment.

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Old 08-27-2015, 06:53 AM   #30
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Possibly the prices for soda blasting are all over the map dues to environmental protection or insurance reasons....costs the yard may incur that they pass along.


Ted..that would have been a great price...usually $40-$60 a foot is the pricing I am familiar with And that was 2012 when I was doing my boat.
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Old 08-27-2015, 07:41 AM   #31
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Often a boat hasn't had an ablative type paint on it and there are so many layers it is weight, roughness and the inability to get new paint to hold on that causes people to blast or grind down...
Do you mean a hard or modified epoxy paint? Ablatives (sloughing) paint wear off with use. The modified epoxy's usually don't. In the hard paints it's the biocide, not the paint itself that usually wears away. We've had to strip 3 boats with modified epoxy because of the paint build up with the symptoms that you mentioned.
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Old 08-27-2015, 08:00 AM   #32
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Sand blasted her bottom to fix a couple of spots and make sure there weren't any others hiding. Think it was $50 per hour plus the sand, less than $500.


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Ted
Made a mistake on the price and wanted to clarify. The marina charged $150 per hour plus sand. Still a great price.

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Old 08-27-2015, 09:59 AM   #33
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It took them just a few hours to sandblast the whole hull?
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