[NSRCA-discussion] 5 min expoxy

[Ronald Van Putte]

Mike - The information is great for those who have airplanes which  
last for many years.  There are a lot of pilots who don't have to  
worry about old age problems of their airplanes.   :-)

Ron Van Putte

On Sep 13, 2011, at 10:52 AM, Michael S. Harrison wrote:

> Thanks Ted and others.  This is all helpful, my concern is what I  
> have witnessed over many years as the heat and fuel ruined the 5  
> min epoxy.  Since it is electric, fuel is not an issue but there is  
> plenty of concern about heat.  I don’t know the deformation temp of  
> the epoxy nor the exposure to normal environment so that is why I  
> was asking.  I am going with the 5 min and doing a thin coating of  
> laminating to have a seal and redundancy.  Sunlight will eventually  
> ruin the epoxies but since it is inside the fuse, that is not an  
> issue.
>
> Thanks
>
> Mike
>
>
>
> From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca- 
> discussion-bounces at lists.nsrca.org] On Behalf Of Ted Sander
> Sent: Tuesday, September 13, 2011 6:54 AM
> To: 'General pattern discussion'
> Subject: Re: [NSRCA-discussion] 5 min expoxy
>
>
>
> I tend to use whatever the local shop carries – but do lean toward  
> Z-poxy.  The current Pres. Of our local club spent his career  
> formulating adhesives, so I trust his opinions, and in his view all  
> hobby marketed expoxies are far stronger and longer lasting than we  
> ever need, so go with price.  That said, longer curing is stronger  
> than shorter curing (but once you are good enough, do you really  
> need it stronger?) and using laminating is better than thinning  
> with alcohol, acetone, or whatever if you need to coat an area….. 
> (thinning does dramatically reduce strength).
>
> If you are getting into whole plane fabrication with epoxies (glass/ 
> composite construction, etc.) then you need to do some more  
> research for thin film strengths, viscosity, etc. , especially  
> since weight becomes a big factor.  But for general gluing of  
> firewalls, wing halves, or the like – go with what you can easily  
> get/afford.
>
>
>
> From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca- 
> discussion-bounces at lists.nsrca.org] On Behalf Of Michael S. Harrison
> Sent: Monday, September 12, 2011 2:31 PM
> To: 'General pattern discussion'
> Subject: Re: [NSRCA-discussion] 5 min expoxy
>
>
>
> Thanks,
>
> Ted what was the brand you used?
>
> Mike
>
>
>
> From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca- 
> discussion-bounces at lists.nsrca.org] On Behalf Of Ted Sander
> Sent: Monday, September 12, 2011 1:51 PM
> To: General pattern discussion
> Subject: Re: [NSRCA-discussion] 5 min expoxy
>
>
>
> You'd just be adding weight.  I have 20 yr old planes where the 5  
> min is still perfect.  Enough heat to be a problem with the epoxy  
> will be a much bigger problem for everything else in the plane!
>
>
>
> Ted Sander
>
> On Sep 12, 2011, at 11:57 AM, "Michael S. Harrison"  
> <drmikedds at sbcglobal.net> wrote:
>
> Thanks Dwane,
>
> Sorry, I was very ambiguous in my search for answers.  I am  
> referring to the cured state.  I am using it for construction and I  
> have decided to coat the cured 5 min epoxy with a high quality  
> laminating epoxy to seal/insulate it from solvents, air, etc so  
> that it is preserved-don’t know that it will work but gonna do it  
> that way.
>
> Mike
>
>
>
> From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca- 
> discussion-bounces at lists.nsrca.org] On Behalf Of Dwayne Brown
> Sent: Monday, September 12, 2011 11:28 AM
> To: 'General pattern discussion'
> Subject: Re: [NSRCA-discussion] 5 min expoxy
>
>
>
> Keep it in the freezer until needed and it will outlive all of us  
> on the NSRCA group.  Dwayne
>
>
>
> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca- 
> discussion-bounces at lists.nsrca.org] On Behalf Of Michael S. Harrison
> Sent: Saturday, September 10, 2011 1:59 PM
> To: 'General pattern discussion'
> Subject: [NSRCA-discussion] 5 min expoxy
>
>
>
> Tech question.
>
>
>
> What is the lifespan quality of 5 min epoxy.  How long does it  
> last?  I am using in an electric for construction and I am  
> concerned about degradation over time.  How does the heat affect  
> it?  I am building to ca models fuse.  What is your choice of  
> adhesive in this case?
>
> Thanks
>
> Mike Harrison
>
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