[tccrockets] Re: Bonding Aluminum to Fiberglass
- From: JACK GARIBALDI <jackgaribaldi@xxxxxxx>
- To: "tccrockets@xxxxxxxxxxxxx" <tccrockets@xxxxxxxxxxxxx>
- Date: Thu, 29 Nov 2012 23:23:59 -0800
That 3/16 x 48 is sweet
Jack
Sent from my Mil Spec IPhone 4S
On Nov 29, 2012, at 9:26 PM, "James Dougherty" <jafrado@xxxxxxxxx> wrote:
> I think I would break down and buy the whole sheet :-)
> http://dragonplate.com/ecart/categories.asp?cID=65
>
>
> On Thu, Nov 29, 2012 at 8:49 PM, James Dougherty <jafrado@xxxxxxxxx> wrote:
>> Sorry, 1/32" thick G-10 Garolite
>>
>> http://dragonplate.com/ecart/product.asp?pID=3925&cID=93
>>
>> Ouch, pricy, I know ...
>>
>> But If you could design the fins to fit those sheets... man oh man.
>>
>>
>> On Thu, Nov 29, 2012 at 8:46 PM, James Dougherty <jafrado@xxxxxxxxx> wrote:
>>> Richard,
>>> What laminates are you using?
>>> I have a vacuum setup I am not using if you want to borrow it.
>>> -james
>>>
>>>
>>> On Thu, Nov 29, 2012 at 8:36 PM, James Dougherty <jafrado@xxxxxxxxx> wrote:
>>>> Actually, Richard, disregard, Cotronics is not what you need for this - I
>>>> see what you are doing.
>>>> http://www.jamestowndistributors.com/userportal/show_product.do?pid=12214
>>>>
>>>> It's an acid wash which chemically alters the surface as you've described.
>>>>
>>>> Very cool! Can you send us a full report?
>>>>
>>>>
>>>> On Thu, Nov 29, 2012 at 8:30 PM, James Dougherty <jafrado@xxxxxxxxx> wrote:
>>>>> That's exactly what it is, like an etching primer you use for metal.
>>>>>
>>>>> Get some Cotronics 4540 Machinable aluminum or 4525. I have some
>>>>> I can give you one at the next launch if you need like pre-kitted 2 oz
>>>>> batches ;-)
>>>>>
>>>>>
>>>>> On Thu, Nov 29, 2012 at 6:09 PM, R Dierking <applerocketry@xxxxxxxxxxx>
>>>>> wrote:
>>>>>> I'm thinking it's acid based to chemically etch the material and also a
>>>>>> film so the aluminum will not oxidize immediately when exposed again to
>>>>>> the air. Some people use wet sanding of the aluminum to prevent the
>>>>>> oxidation layer that prevents good bonding. For this technique, slow
>>>>>> cure epoxy (30 minute) is used and the aluminum surface is wet sanded
>>>>>> with the epoxy. I know, it sounds like a big mess, but it works!
>>>>>>
>>>>>> For my application, I'm looking to bond 1/8" thick aluminum between
>>>>>> sheets of 1/32" thick G-10 Garolite for fins. The attached photo shows
>>>>>> the aluminum test peice.
>>>>>>
>>>>>> Anyway, I'm probably going to try the West Systems Aluminum Etch on some
>>>>>> test pieces and see if I can pull the layers apart.
>>>>>>
>>>>>> Richard Dierking
>>>>>> Subject: [tccrockets] Re: Bonding Aluminum to Fiberglass
>>>>>> From: bandman444@xxxxxxxxx
>>>>>> Date: Thu, 29 Nov 2012 17:31:47 -0800
>>>>>> To: tccrockets@xxxxxxxxxxxxx
>>>>>>
>>>>>>
>>>>>> I don't, when we bonded the aluminum fins to our N5800 rocket we used
>>>>>> LOCtite Hysol 9430 and used a sanding while epoxy on approach. It held
>>>>>> to Mach 3 so I guess it was ok.
>>>>>>
>>>>>> The West Systems kit looks interesting.
>>>>>>
>>>>>> Bryce Chanes
>>>>>>
>>>>>> Sent from my iPhone
>>>>>>
>>>>>> On Nov 29, 2012, at 4:51 PM, R Dierking <applerocketry@xxxxxxxxxxx>
>>>>>> wrote:
>>>>>>
>>>>>> Does anyone have experience using the West Systems 860-8 aluminum etch
>>>>>> kit for bonding aluminum to fiberglass?
>>>>>>
>>>>>> Richard Dierking
>>>>>
>>>>
>>>
>>
>
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