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 Post subject: Stupid Newbie Filletting Question
PostPosted: Thu Oct 04, 2012 5:45 pm 
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Joined: Tue Aug 28, 2012 9:36 pm
Posts: 56
Location: Taranaki, New Zealand
My apologies for the stupid newbie question, but should I be filletting both sides of a join?

When you do one side of the join, the epoxy glue goes right through (hense the recommended tape backing) so is it necessary to do it from both sides? Obviously filletting from both sides creates more mess to clean up.

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 Post subject: Re: Stupid Newbie Filletting Question
PostPosted: Thu Oct 04, 2012 7:02 pm 
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Joined: Fri Jun 18, 2004 8:14 pm
Posts: 4855
Location: Greensboro, NC
The thickened epoxy does seep through both sides of the seam/joint. You want to ensure you have a smooth radius so the fiberglass can lay flat over/in those curves.

So on the interior, you create a fillet. On the exterior, you created a rounded angle.

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 Post subject: Re: Stupid Newbie Filletting Question
PostPosted: Thu Oct 04, 2012 7:32 pm 
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Joined: Tue Jan 05, 2010 8:56 pm
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Location: South Coast NSW Australia
On the inside I find it best to run a strip of masking tape along both sides of the join about 10mm away from it. Then run a bead of thickened epoxy along it and smooth it out with the back of a plastic spoon. This leaves a nice radius for the fibreglass cloth to adhere to.

Roger

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 Post subject: Re: Stupid Newbie Filletting Question
PostPosted: Mon Oct 08, 2012 7:21 pm 
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Joined: Tue Aug 28, 2012 9:36 pm
Posts: 56
Location: Taranaki, New Zealand
Thanks; I think I have been confusing myself between welding/gluing and filletting.

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