Duralac/JC5A and Cromate confusion.
Posted: Tue Jun 18, 2019 6:27 pm
Hi All,
New to building and have the parts of my shiny soon to be Sling 4 empennage kit. I have spoken with an inspector as well as the UK importer and a couple of friends also building Sling aircraft at the same point as me. We have different inspectors and it turns out we are all getting different ideas and advice from the Importer and our respective inspectors on what is best practice. SO hoping to stir a debate and see if we can find one…
So, I will deburr and dimple the parts as needed that’s simple enough then I plan to spray with AEROWAVE 2001/6005 PRIMER (All parts!) and then it comes to assembly and this is where the 3 of us have different ideas on what is needed. YES, we are all first timers so please be gentle, it's just me that has decided/agreed to ask on here for the group to learn.
So, when it's all primed (If that's the correct stuff!) we come to assembly and where parts are in contact and where the pulled rivets go into the holes, we are split on the need for Duralac (Green or Yellow!) and JC5A. I have read lots and looked at other builders and everyone seems to do something different, so my question without trying to be leading on where I think I need to put the gloop is... What is best practise?
Yes I could rely on the thoughts of my inspector as he does have to sign it off but with different inspectors having different ideas it would be nice if there was some guidance from the LAA on what best practise is so that us wet behind the ears new builders have an idea on what to do. Also with differences of opinion on what to use and where comes the process on how to do it, like leave the Duralac clamped but not riveted overnight so it dry’s and doesn’t bulge the joint.
I just want my pride and joy to be as good as it can be, and as I plane to blog my build I want the process I use to be a good one as other new builders may copy what I do and if it’s wrong they will make the same mistakes.
Thanks and if there are other tips and tricks us 3 new builders need to learn then please let us know, Oh and yes I did the LAA Metal work course but that was before the kit arrived so the questions now are a little different to what they were before.
Cliff.
New to building and have the parts of my shiny soon to be Sling 4 empennage kit. I have spoken with an inspector as well as the UK importer and a couple of friends also building Sling aircraft at the same point as me. We have different inspectors and it turns out we are all getting different ideas and advice from the Importer and our respective inspectors on what is best practice. SO hoping to stir a debate and see if we can find one…
So, I will deburr and dimple the parts as needed that’s simple enough then I plan to spray with AEROWAVE 2001/6005 PRIMER (All parts!) and then it comes to assembly and this is where the 3 of us have different ideas on what is needed. YES, we are all first timers so please be gentle, it's just me that has decided/agreed to ask on here for the group to learn.
So, when it's all primed (If that's the correct stuff!) we come to assembly and where parts are in contact and where the pulled rivets go into the holes, we are split on the need for Duralac (Green or Yellow!) and JC5A. I have read lots and looked at other builders and everyone seems to do something different, so my question without trying to be leading on where I think I need to put the gloop is... What is best practise?
Yes I could rely on the thoughts of my inspector as he does have to sign it off but with different inspectors having different ideas it would be nice if there was some guidance from the LAA on what best practise is so that us wet behind the ears new builders have an idea on what to do. Also with differences of opinion on what to use and where comes the process on how to do it, like leave the Duralac clamped but not riveted overnight so it dry’s and doesn’t bulge the joint.
I just want my pride and joy to be as good as it can be, and as I plane to blog my build I want the process I use to be a good one as other new builders may copy what I do and if it’s wrong they will make the same mistakes.
Thanks and if there are other tips and tricks us 3 new builders need to learn then please let us know, Oh and yes I did the LAA Metal work course but that was before the kit arrived so the questions now are a little different to what they were before.
Cliff.