Canard Aviation Forum  

Go Back   Canard Aviation Forum > Finishes and Finishing
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
  #1  
Old 04-25-2012, 03:22 PM
frdm2002 frdm2002 is offline
Member
 
Join Date: Jan 2012
Location: Los Angeles, CA
Posts: 36
Default The "Prime Directive" is awesome!

I have recently started finishing the bottom side after reading CPs including Cory Bird's work and postings from Wayne Hicks, Dust, Kent, Steve, Buly and others. I am following the Prime Directive and generally speaking, finishing along the lines of what Wayne did as per his website.

Here's the original thread: http://forum.canardaviation.com/show...ight=cory+bird

It's AWESOME! I recommend this approach highly to others finishing their aircraft. While I thought it was going to take months to fill, sand, contour, refill, re-sand, etc, it now looks like it's going to get done much faster than that!

Thank you guys for sharing your experiences. I will try to post some pictures of my own shortly.

Bob
__________________
Bob Obreiter
Whiteman Airport (KWHP)
Los Angeles, CA
Reply With Quote
  #2  
Old 04-25-2012, 07:36 PM
kjashton's Avatar
kjashton kjashton is offline
Member
 
Join Date: Jul 2006
Location: Concord, NC
Posts: 620
Default Re: The "Prime Directive" is awesome!

Ha! I hope it turns out to be as easy as you think. It is a brutal, soul-deadening task to make "moldless composite construction" turn into something beautiful. If Burt's practice bookends had to be filled, sanded, and painted, no one would start a Rutan airplane.

My LEZ wings, canard, control surfaces are in final primer. My fuselage is mostly filled and contoured. Thank goodness the end is in sight and I can move on to fun stuff--wiring, instruments.

I have found guidecoats pretty useful: When you think the filled surface is ready for primer, spray on a quick, light coat of a dark, sandable primer and go over it with 320 grit. It will show up lots of defects. It doesn't have to be as heavy as this.
Attached Thumbnails
Click image for larger version

Name:	IMG_0010.JPG
Views:	331
Size:	746.4 KB
ID:	6424  
__________________
Kent Ashton
Cozy IV N13AM
Reply With Quote
  #3  
Old 04-25-2012, 07:48 PM
TMann's Avatar
TMann TMann is offline
Got Foam?
 
Join Date: Mar 2007
Location: Omaha, NE
Posts: 3,604
Default Re: The "Prime Directive" is awesome!

I agree Bob. I'm doing the fill on my wings as I go using the Cory Bird document as a guideline. Not nearly as bad as I anticipated.

I also use Waiter's technique of mixing (1 part) West Microlight 410 to 4 parts of micro along with the West System epoxy.

I didn't see any need to use anything else to detect any defects or low spots. If in doubt just close your eyes and run you hand accross the surface.

I think it's a good Idea to finish as you go so you don't have to deal with it all at once at the end.
__________________
T Mann
Long-EZ/20B Infinity R/G Chpt 18
Velocity/RG Restoration
EAA #390365
Got Foam?
Mann's Airplane Factory
We add rocket's to everything!
4, 5, 6, 7, 8, 10, 13, 14, 19, 20 DONE
Reply With Quote
  #4  
Old 04-26-2012, 11:34 AM
neverquit's Avatar
neverquit neverquit is offline
G.Norman
 
Join Date: Sep 2004
Location: Lathrup Village, MI
Posts: 1,861
Default Re: The "Prime Directive" is awesome!

Quote:
I also use Waiter's technique of mixing (1 part) West Microlight 410 to 4 parts of micro along with the West System epoxy.
Tell me more Tom! I overlooked this idea. You find it make less pinholes?
Reply With Quote
  #5  
Old 04-26-2012, 12:41 PM
Dennis Passey's Avatar
Dennis Passey Dennis Passey is offline
N513DP Cozy540
 
Join Date: Mar 2005
Location: Monterey Bay Area, Calif
Posts: 1,763
Default Re: The "Prime Directive" is awesome!

Wayne's West epoxy system Pre-Fill & then "Big Fill" technique cut down with 36 grit and then 80 grit, blown off with air and then 2 or 3 West epoxy skim coats to fill in the scratches and few pinholes seems like the way to go. Have I digested that right Wayne-Others?
__________________
Build the dream, Fly the dream.

Website; www.vipercozy540.weebly.com

Dont watch the tele...get off that couch and build on your flying future.=)
Reply With Quote
  #6  
Old 04-26-2012, 01:34 PM
TMann's Avatar
TMann TMann is offline
Got Foam?
 
Join Date: Mar 2007
Location: Omaha, NE
Posts: 3,604
Default Re: The "Prime Directive" is awesome!

Quote:
Originally Posted by neverquit View Post
Tell me more Tom! I overlooked this idea. You find it make less pinholes?
I don't know about it being a solution for pinholes. I know it spreads out real nice.

I use the technique outlined in the Cory Bird document once I have it sanded down to a profile I'm happy with. The raw epoxy fill takes care of any pinholes.
__________________
T Mann
Long-EZ/20B Infinity R/G Chpt 18
Velocity/RG Restoration
EAA #390365
Got Foam?
Mann's Airplane Factory
We add rocket's to everything!
4, 5, 6, 7, 8, 10, 13, 14, 19, 20 DONE
Reply With Quote
  #7  
Old 04-27-2012, 01:05 AM
frdm2002 frdm2002 is offline
Member
 
Join Date: Jan 2012
Location: Los Angeles, CA
Posts: 36
Default Re: The "Prime Directive" is awesome!

I guess I am pretty lucky when it is coming to pinholes. Not having that many right now. I got overzealous with mixing of one batch of micro and it ended up leaving a number of pinholes but that's about it. Just using West and micro-balloons.
__________________
Bob Obreiter
Whiteman Airport (KWHP)
Los Angeles, CA
Reply With Quote
  #8  
Old 04-27-2012, 08:48 AM
TMann's Avatar
TMann TMann is offline
Got Foam?
 
Join Date: Mar 2007
Location: Omaha, NE
Posts: 3,604
Default Re: The "Prime Directive" is awesome!

Quote:
Originally Posted by frdm2002 View Post
I guess I am pretty lucky when it is coming to pinholes. Not having that many right now.
Unless you are already applying primer, that should read "I haven't found that many yet."
If you use the "Raw Epoxy" fill technique, when you do finally apply your primer, you won't find any (or should I say many) at that time.
__________________
T Mann
Long-EZ/20B Infinity R/G Chpt 18
Velocity/RG Restoration
EAA #390365
Got Foam?
Mann's Airplane Factory
We add rocket's to everything!
4, 5, 6, 7, 8, 10, 13, 14, 19, 20 DONE
Reply With Quote
  #9  
Old 04-27-2012, 10:59 AM
joeflys joeflys is offline
Member
 
Join Date: Oct 2010
Location: Minneapolis, MN
Posts: 100
Default Re: The "Prime Directive" is awesome!

What do you guys use for a ratio of micro to epoxy? Do you measure each batch the same so that it sands consistently? Or do you just mix until it looks right? I plan on using west if that makes a difference.

Joe
Reply With Quote
  #10  
Old 04-27-2012, 11:39 AM
TMann's Avatar
TMann TMann is offline
Got Foam?
 
Join Date: Mar 2007
Location: Omaha, NE
Posts: 3,604
Default Re: The "Prime Directive" is awesome!

Quote:
Originally Posted by joeflys View Post
Or do you just mix until it looks right?
About the same as peanut butter.
__________________
T Mann
Long-EZ/20B Infinity R/G Chpt 18
Velocity/RG Restoration
EAA #390365
Got Foam?
Mann's Airplane Factory
We add rocket's to everything!
4, 5, 6, 7, 8, 10, 13, 14, 19, 20 DONE
Reply With Quote
  #11  
Old 04-27-2012, 09:58 PM
Steve parkins's Avatar
Steve parkins Steve parkins is offline
Member
 
Join Date: Apr 2004
Location: daly city
Posts: 2,796
Default Re: The "Prime Directive" is awesome!

Quote:
Originally Posted by joeflys View Post
What do you guys use for a ratio of micro to epoxy? Do you measure each batch the same so that it sands consistently? Or do you just mix until it looks right? I plan on using west if that makes a difference.

Joe
on big jobs i use a set amount over and over.
the last 10% is played by eye, just add in the last little bit of balloons.
here's a tip, mix 4000 /1520 plus 2000 denatured alcohol, mix well then add in micro so it just stops running then run out and cover the hole top of the wing.
and when it drys you will smile when its time to sand (if using west try 20% at first).
__________________
edited by steve for a good reason
Reply With Quote
  #12  
Old 05-01-2012, 01:44 AM
frdm2002 frdm2002 is offline
Member
 
Join Date: Jan 2012
Location: Los Angeles, CA
Posts: 36
Default Re: The "Prime Directive" is awesome!

Quote:
Originally Posted by TMann View Post
About the same as peanut butter.
Crunchy or smooth?

Steve: I am not following your numbers. Can you help by elaborating, please?

Bob
__________________
Bob Obreiter
Whiteman Airport (KWHP)
Los Angeles, CA
Reply With Quote
  #13  
Old 05-01-2012, 01:56 PM
Steve parkins's Avatar
Steve parkins Steve parkins is offline
Member
 
Join Date: Apr 2004
Location: daly city
Posts: 2,796
Default Re: The "Prime Directive" is awesome!

Quote:
Originally Posted by frdm2002 View Post
Crunchy or smooth?

Steve: I am not following your numbers. Can you help by elaborating, please?

Bob
that was mgs mixing plus DA, in short....mix your epoxy then thin it down with DA then add in micro, leave it on the wet side.
after 2 or 3 tries you'll be lovin it !
__________________
edited by steve for a good reason
Reply With Quote
  #14  
Old 05-01-2012, 01:57 PM
Steve parkins's Avatar
Steve parkins Steve parkins is offline
Member
 
Join Date: Apr 2004
Location: daly city
Posts: 2,796
Default Re: The "Prime Directive" is awesome!

Quote:
Originally Posted by frdm2002 View Post
Crunchy or smooth?

Steve: I am not following your numbers. Can you help by elaborating, please?

Bob
if the cup was dirty, both
__________________
edited by steve for a good reason
Reply With Quote
  #15  
Old 09-24-2012, 03:36 PM
BLUE MAX's Avatar
BLUE MAX BLUE MAX is offline
Long EZ
 
Join Date: Mar 2005
Location: Aldan, PA
Posts: 84
Thumbs up Re: The "Prime Directive" is awesome!

Last year I met a guy at Rough River and swears to me that he has the answer to the pinhole solution. He says it's the "FINAL SOLUTION". I trust this guy cause he built 6 beautiful airplanes. I have been working with the LOEHLE finishing products using Loehle "wonder fill" on the nose of my Long EZ. Of course this is after you "FILL" using West System with Micro - sand 36 then 80 grit sand paper. I applied this stuff and then sanded and primed with Loehle black primer and then sanded that. The black primer is great cause is goes on shiny and sands dull. It will tell you if you have any low spots. I had a few low spots and applied micro and sanded it down and then repeated the process descrided above on just the low spot. Flat and smooth with no pinholes. The final primer is the white primer that has the UV protection in it. "THE FINAL SOLUTION" works great. Read up on this product. It's Vary EZ to work with. Can't wait to fill the wings... and I hate filling!!!!
__________________
Tom McCormick
http://tomslongez.com
Reply With Quote
Reply

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 09:48 PM.


Powered by vBulletin® Version 3.6.7
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.