[PSUBS-MAILIST] Zinc coating

[James Frankland via Personal_Submersibles]

Im with Alec on this, its a hideous job.  Pay someone to do it.  I got my
boat blasted inside and out for £300.  I wouldn't be able to buy all the
proper stuff for anywhere near that.

I tried to get the bloke to do the blasting at home so I didn't have to
move the sub, but he flatly refused to do it on account of the mess.  Even
though id said I would curtain everything up.  So I had to crane the boat
out and take it to his workshop.

BUT, sounds like Scott had success with the correct tools.  I must admit it
would be nice to have ability to do it myself.  If I had a large shed spare
I would probably consider it.  I like to be independent.

On 1 May 2015 at 14:14, Alec Smyth via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Hi Brian,
>
> There's lots of dirty, noisy, or smelly jobs building a sub, but
> sandblasting our little hulls - in particular the inside - has to be right
> at the top of the list. Years ago I bought myself a sand blaster with the
> intention of doing this job myself. Very bad idea. It was a complete pain,
> especially recovering the sand to pass it back through, which required one
> to pass it through a sieve to remove any kind of foreign particles that
> would clog the nozzle. I had clogs pretty much all the time, sand
> everywhere, and ended up taking the sub off to have someone with proper
> facilities deal with it. I generally tight-fisted, but sand blasting is THE
> job I don't mind outsourcing.
>
> Best,
>
> Alec
>
> On Thu, Apr 30, 2015 at 9:25 PM, Brian Cox via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> All,
>>
>> Ok, I was going to take my pressure hull ( it's finished , BTW) down and
>> have an outfit zinc coat it but now I'm thinking that I should spend that
>> money on a heavy duty air compressor and a sand blaster and do it myself.
>> Since I'm sure I will need to be recoating places where I'm doing thru
>> hulls and such.  But my question is do I need to worry about the
>> compatibility between the zinc coating and the epoxy that will on over the
>> zinc ??   Should I put the zinc on the inside too ?   Are there different
>> types of zinc coatings?
>>
>> Brian
>>
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>
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