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Old Feb 19, 2011, 01:20 PM
Sloping the Financial Cliff
fcbflyer's Avatar
USA, CA, Santee
Joined Oct 2007
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Question
Sandable filler?

What do the experts use as a filler to make a wing repair looking like new?

I am not so happy with the bondo/easy sand auto body filler I tried. It is also pretty heavy.

One of these any good?

http://www.aircraftspruce.com/catalo...s/superfil.php

http://www.aircraftspruce.com/catalo...ltwtfiller.php

http://www.aircraftspruce.com/catalo...finisputty.php
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Old Feb 19, 2011, 01:37 PM
yyz
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USA, CA, Paso Robles
Joined Dec 2004
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West System 410 is a good product and much lighter than Bondo when used with the West epoxy and hardener. It's light brown in color when dry.

CST carries it.

Happy sanding,

Mike
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Old Feb 19, 2011, 02:20 PM
Detail Freak
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Harbor City, CA
Joined Oct 2003
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+1 for the 410 with West Systems. "Dryer" mix is more sandable, wetter less, but stronger and heavier. Bondo is for the PSS cavemen, where heavier at all ends is better (they think).

If you REALLY want it light and strong, under-fill a fillet a little, and lay on some light glass. When it gets tacky, add the finish layer that you will sand.

R,
Target
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Old Feb 19, 2011, 03:07 PM
Master of the Wind
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United States, CA, San Jose
Joined Sep 2008
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I really like the Superfil and use it almost exclusively. I have since put away the epoxy and microballoons unless I need a really wet mix or want to put in fibers. Good for both dry and wet sand, really good with wet sand. I'm on my 5th project with it. Nice working time, a little slow, but I put some in the hot box last night and it was easily ready to sand in the morning.

Most of the filling I do with epoxy is for internal work and uses chopped fiber in place of microballoons.

I also keep some lightweight spackle on hand for the last foam fill before bagging.
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Old Feb 19, 2011, 03:19 PM
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so. cal.
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Split Second filler is the best I have ever used. It is liquid microballoons suspended in the can, SUPER light weight, fast, and sands so fine you can polish it. I get it at my local automotive paint store in Long Beach. Once you use it there is no going back. I can post a picture of the can if needed.
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Old Feb 19, 2011, 10:09 PM
I land when i CFIT!
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Old Feb 19, 2011, 10:38 PM
yyz
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USA, CA, Paso Robles
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Quote:
Originally Posted by s2000 View Post
Split Second filler is the best I have ever used. It is liquid microballoons suspended in the can, SUPER light weight, fast, and sands so fine you can polish it. I get it at my local automotive paint store in Long Beach. Once you use it there is no going back. I can post a picture of the can if needed.
Dennis, please post a picture of the can.
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Old Feb 19, 2011, 11:10 PM
Sloping the Financial Cliff
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Split Second
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Old Feb 19, 2011, 11:44 PM
in the air
in the air
Joined Aug 2006
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split second that stuff is the best! thanks to LJ introducing me to the product. works wonders and is smooooth!
MB3
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Old Feb 20, 2011, 12:36 AM
Master of the Wind
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United States, CA, San Jose
Joined Sep 2008
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I take it split second is polyester based, meaning no foam cores?
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Old Feb 20, 2011, 12:47 AM
Sloping the Financial Cliff
fcbflyer's Avatar
USA, CA, Santee
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On foam cores I would only use lightweight spacle. Trying to sand anything harder then that will Be nearly impossible.
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Old Feb 20, 2011, 02:33 AM
Tassie Electric, Heli, Glider
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Hobart, Australia
Joined Oct 2002
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+1 for Spackle, its so light and easy to sand.
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Old Feb 20, 2011, 08:16 AM
Detail Freak
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Harbor City, CA
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I'll have to try the Superfil and Split Second stuff.

Thanks,
Target
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Old Feb 20, 2011, 01:44 PM
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so. cal.
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Here is a picture, G.E. Paint (Gary Elliot runs the place) is I think on Anaheim street in Long Beach just east of Junipero, it is around $25 a can, the can feels almost empty since the stuff is so lightweight, it is just a lttle thicker than whipped cream.
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Old Feb 21, 2011, 06:02 PM
Sloping the Financial Cliff
fcbflyer's Avatar
USA, CA, Santee
Joined Oct 2007
2,451 Posts
Thank you guys to chime in here. I did the 410 epoxy mix before and didn't like it too much.

I ordered a can of split second and will report on the outcome.
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