Re: [ULF-1] Modern Adhesives vs Plan callouts

From: Member 50
Date: 2018-03-27 11:18 UTC+01:00
Message: #0548

Hi Austin, Aerolite for the ribs

Aerodux  (Prefere 4050M or F) for laminating the spars.  M= Takes about 48 hours to set but gives a long working time  F= working time of about 20 minutes but sets overnight at about 20 degrees C. Also limited can life.

T88 for the skins and attaching the ribs to spars.

I have no experience of thickening.

These are the recommendations of Dudley Pattison from the UK Light Aircraft Association and my experience of the Dux.


Andy ...

-----Original Message-----
From: Ulf-1 [mailto:[redacted] On Behalf Of Member 111
Sent: 26 March 2018 21:23
To: [email]
Subject: [ULF-1] Modern Adhesives vs Plan callouts

Hi again everyone. 

I’ve noticed that the plans call for aerodux resorcinol urea formaldehyde glue in the construction of ribs and even the spar cap laminations. I’ve read of some other builders substituting T-88 for all adhesives in the aircraft, and wanted to get other ULF-1 builders’ take on the question. 

Also, several parts of the build manual call out “thickened” epoxy, but do not state the ratio of thickener to epoxy. The use of cotton flakes which I take to mean flox is also mentioned. Does Dieter intend to refer to what ratio system 3 or West Systems recommend? 

Austin
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