REFLECTOR: epoxy

[Tony Babb]

Hi Ben,
 
The hardener/resin ratio is 44:100 by weight. As for the tolerance I don't
have a scientific answer but I've assumed it should be closer to 44 than to
43 or 45 so I'm happy with 436:1000 up to 444:1000, actually I keep
calibrating until I get in the range 439:1000 to 441:1000. To get a
reasonable accuracy when calibrating the pump I give about 10 strokes of the
pump before weighing the hardener and resin discharged.
 
Hope this helps.
 
Tony
 
SEFG
www.alejandra.net/velocity

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Benedikt Harren
Sent: Sunday, March 18, 2007 4:02 PM
To: 'Velocity Aircraft Owners and Builders list'
Subject: REFLECTOR: epoxy


Dear all,
 
just came back from my shop with a  couple of questions:
I bought a STD. RG E with fastbuilt wings & fuselage. The previous owner
completed the speedbrake without installing it. He applied microglass and
fine BID to the outer edge of the speedbrake per the manual which he
afterwards sanded. While sanding he cut into the BID leaving at some places
micro only. Since the speedbrake will be out in the elements I was wondering
if I need to cover the edge with BID a second time.
 
Second, I started sanding the front of the canard bulkhead in order to apply
the 2 plies of BID as outlined in the manual. How do I clean off the sanded
areas? Cloth? Acetone? Does Anybody know whether the mixing ratio of
hardener (brown) to resin (44:100) is by weight or by volume? What is the
tolerance?
 
Thirdly, I am planning to low-cut the keel and move the seats more towards
the center of the fuselage in order to gain some "hip-room". Scott Baker
told me that the original keel can be modified. Anybody any drawings or
input on that?
 
Appreciate the help!
 
Kind regards,
 
Ben Harren
( Std RG Elite N888GF / just getting started)
 
 

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