[PSUBS-MAILIST] dissolving foam

[Sean T. Stevenson via Personal_Submersibles]

With the addition of some quantity of benzene, polystyrene and gasoline do in fact comprise the revised "composition B" version of napalm. Viscosity is controlled simply by adjusting the solute / solvent ratio.

Sean

-------- Original Message --------
On Jul 29, 2018, 18:04, Alan via Personal_Submersibles wrote:

> Hank,
> the polystyrene I used ended up a sloppy jelly consistency.
> Not sure whether you could pour it out. Mine was a large area though
> and it reduces to a small amount. Depending on what you are doing you
> may want to leave it in there to get hard.
> Apparently if you set the slop on fire it is like napalm, keeps on burning.
> Alan
>
> Sent from my iPad
>
> On 30/07/2018, at 11:25 AM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>> Alan,
>> Thanks' I heard that gasoline works but I only want to make a small hole in the tank, so it needs to all come out.
>> Hank
>>
>> On Sunday, July 29, 2018, 5:18:47 PM MDT, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>
>> Hank,
>> I formed my ballast tank out of polystyrene, fibreglassed over the top
>> & dissolved the polystyrene out with petrol. Petrol being cheaper than acetone.
>> It dissolved it to a sloppy consistency that you could scrape out, but left
>> a hard shell of plastic in places. Maybe check a sample out to see how it dissolves
>> with  petrol & acetone.
>> Alan
>>
>> Sent from my iPad
>>
>> On 30/07/2018, at 10:04 AM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>
>>> Hi All,
>>> I am going to repurpose a couple of dock floats that are ABS plastic I think and foam filled.  I need to remove the foam.  I understand that Acetone works for that.  I have never done this, so what do I do?
>>> Hank
>>
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