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Old Jan 05, 2012, 10:39 PM
Whisper Model Aircraft
heliwill10's Avatar
Greensburg, PA
Joined Feb 2008
566 Posts
What are you using for tooling? Also are you bulking with sand?
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Old Jan 05, 2012, 11:11 PM
Now fortified with carbon
DLGjunkyard's Avatar
Canada, ON, Puslinch
Joined Apr 2010
2,756 Posts
The tool coat was my own mix of graphite powder,aluminum powder,west 403 filler.
I did the tool coat till green then two layers of 3/4 glass then progressively up to 5.8 oz clothe. After about 5 or 6 layers I threw sand in along the edges of the fuse and kept going with glass and more sand etc. The sand pushes resin to the surface and every so often I would sprinkle dry sand in and watch it soak up resin. The last layer of sand I mixed was just moist really knowing it would be fine
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Old Jan 06, 2012, 11:39 AM
Whisper Model Aircraft
heliwill10's Avatar
Greensburg, PA
Joined Feb 2008
566 Posts
Here is what I'm going to try. It actually fairly reasonably priced.

http://www.adtechplastics.com/pc-45-...at-system.aspx

Are your kevlar pods still have some FG?
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Old Jan 06, 2012, 11:44 AM
Whisper Model Aircraft
heliwill10's Avatar
Greensburg, PA
Joined Feb 2008
566 Posts
This for bulk:

http://www.adtechplastics.com/pc-52-...-compound.aspx

Two gallons of the stuff is 100$. Just called today for prices becuase I was afraid

Talking to the guy on the phone only a few layers behind the toolings of e glass is need and then some 7oz or so behind the dough.
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Old Jan 06, 2012, 12:06 PM
Now fortified with carbon
DLGjunkyard's Avatar
Canada, ON, Puslinch
Joined Apr 2010
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The amount of tool coat is not much but do you use that resin for the entire mould? Tool coat is brittle to some degree.
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Old Jan 06, 2012, 05:03 PM
Whisper Model Aircraft
heliwill10's Avatar
Greensburg, PA
Joined Feb 2008
566 Posts
The tool coat is something different then the epoxy. I understand this is the stuff Adam uses. Its much harder and lasts longer....

The dough, is the same as sand but it is much lighter weight. Which is somewhat a concern with my mold because it going to be so large and bulky.
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