[tccrockets] Re: Bonding Aluminum to Fiberglass
- From: James Dougherty <jafrado@xxxxxxxxx>
- To: tccrockets@xxxxxxxxxxxxx
- Date: Thu, 29 Nov 2012 20:30:52 -0800
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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