News:


  • May 24, 2024, 04:58:23 AM

Login with username, password and session length

Author Topic: Carbon Veil Weight Choice  (Read 810 times)

Offline Joe Rice

  • Trade Count: (0)
  • Lieutenant
  • ***
  • Posts: 117
Carbon Veil Weight Choice
« on: April 05, 2011, 08:03:50 AM »
I want to use carbon veil on a couple of planes that are ready for covering sheeted surfaces, but I am confused as to what weight I need.  Brodak has .3 oz as does Control Line Central.  RSM has .001, .007 and some others.  What should I order?  Also....  if I use dope to adhere the veil, do you pre-dope the surface as you would for silkspan?  HB~>

Joe
Joe Rice
AMA 740106

Offline Greg L Bahrman

  • Trade Count: (0)
  • Captain
  • *****
  • Posts: 699
  • Welcome to the Stunt Hanger.
Re: Carbon Veil Weight Choice
« Reply #1 on: April 05, 2011, 09:12:08 PM »
This works for me. I put 3 or 4 coats minimum of thinned clear on wood before applying veil.
Greg Bahrman, AMA 312522
Simi Valley, Ca.

Offline Gary Anderson

  • AMA Member and supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 729
Re: Carbon Veil Weight Choice
« Reply #2 on: April 06, 2011, 01:26:02 AM »
This works for me. I put 3 or 4 coats minimum of thinned clear on wood before applying veil.
Hi Greg,
 How many coats of dope do you cover the veil with before you sand?? If you cover the wood with veil do you have to use the zinc sterate mixed with dope or does the veil cover as the filler coat??? Sorry for the dumb question, I just don't know the answer. I've never used veil and I tried it today and it seems to work great. I'm ready to start doping the veil cover and I believe I'm going to use my air brush to cover the veil with dope. Wouldn't lite coats work the best to start with and then cover with a normal coat??? Before I tried to cover the fuse with the veil I covered the fuse with several coats of nitrate clear dope. When I installed the veil I use a mixture of 90% thinner and 10% nitrate dope to attach the veil to the wood. The veil seemed to go on very easy, I found out that ya can't stretch the veil once it has dope on it, it just pulls apart. I used scissors to cut the material and that seemed to work okay, I'm sure a double edge razor would work a little better. I noticed that some of the carbon comes off when you use the brush to soak the veil with dope. I hope I'm doing it correctly cause I sure don't want to start over?????? Just having fun, Gary
« Last Edit: April 06, 2011, 09:24:35 AM by Gary Anderson »
Gary Anderson

Offline Joe Rice

  • Trade Count: (0)
  • Lieutenant
  • ***
  • Posts: 117
Re: Carbon Veil Weight Choice
« Reply #3 on: April 06, 2011, 02:22:42 PM »
 Thanks for the helpful comments.  It seems that .2 ounce material is what most of you are using.  I ordered some from Randy and look forward to the application.   H^^

Joe
Joe Rice
AMA 740106

Offline Greg L Bahrman

  • Trade Count: (0)
  • Captain
  • *****
  • Posts: 699
  • Welcome to the Stunt Hanger.
Re: Carbon Veil Weight Choice
« Reply #4 on: April 06, 2011, 04:49:37 PM »
Hi Gary,
What Ty said and you'll be good to go.
Greg Bahrman, AMA 312522
Simi Valley, Ca.

Offline Joe Rice

  • Trade Count: (0)
  • Lieutenant
  • ***
  • Posts: 117
Re: Carbon Veil Weight Choice
« Reply #5 on: April 06, 2011, 05:48:35 PM »
When you apply this stuff, wear a long sleeve shirt.  H^^  Also use a large soft brush and gently dab the dope onto the carbon fibers.  Once it has dried, then it is hard and further doping will not cause it to seperate.   This stuff goes around corners, if wet with dope, and gently pushed into place. So much easier than silkspan.   H^^

Thanks again for the advice. 

Joe
Joe Rice
AMA 740106

Offline bill bischoff

  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 1707
Re: Carbon Veil Weight Choice
« Reply #6 on: April 08, 2011, 12:54:15 PM »
OK, I'll ask the dumb question. Why are people using carbon veil? Is is for strength/ stiffness, or ease of finishing, or some other reason?

Offline Gary Anderson

  • AMA Member and supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 729
Re: Carbon Veil Weight Choice
« Reply #7 on: April 08, 2011, 11:39:00 PM »
Hi Ty,

Is the black color of the veil hard to cover with dope??? I would think that the black color would make a white color hard?? Will the silver cover coat cover up the black?? I believe I'll have to rethink my color scheme??? Having a dark back ground would make it hard to have a lite color??? Just curious and would like to know before I try to spray many coats trying to cover up the dark back ground???? Yes the veil goes on nice and easy.
Gary
Gary Anderson

Offline PJ Rowland

  • AUS - 29541 AMA - 809970
  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 2058
  • Melbourne - AUSTRALIA
Re: Carbon Veil Weight Choice
« Reply #8 on: April 09, 2011, 08:40:35 AM »
I use it for the following reasons :

1 : Its easier to work with than silkspan
2 : It sand easier
3: makes for a firm finish prior to paint
4: You can fill gaps easy - blend the join
5: it resists dings better - more durable
6: Bob Hunt uses it.


- Once the dope / serate mixure goes on it will change the colour to more of a white - then whatever you use as a base coat will be just that colour.

If you always put limit on everything you do, physical or anything else. It will spread into your work and into your life. There are no limits. There are only plateaus, and you must not stay there, you must go beyond them.” - Bruce Lee.

...
 I Yearn for a world where chickens can cross the road without having their motives questioned.

Offline PJ Rowland

  • AUS - 29541 AMA - 809970
  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 2058
  • Melbourne - AUSTRALIA
Re: Carbon Veil Weight Choice
« Reply #9 on: April 10, 2011, 07:27:17 PM »
I think- if you used to using Silkspan you shouldnt have any problems with Carbon Veil.. It applys a little differently.. I think the key is try to handle it as little as possible.

A technique I use when laying it down is to cut a Big piece, and lay it down in sections, and trim it to suit.

What I mean is - lets say you are trying to do a fuselage, id cut a peice 4" wide X 30 " long, - start laying it down by dabbing dope to the carbon , not worried at this stage about overlap or over hang, slowly move down the fuze, and if I need to trim, get a sharp exacto blade and slice - very gently along where you want it cut - wing, flap, fillet, whereever.. it cuts SO easily... then continue to lay it down, try to handle it as little as possible.

Corners. tight corners, I like to let it tack off dry after 10 mins, before I try to get it to go around a compound curve like the inside of a cowl, do the outside 1st up to the edge. let it go off, then wrap it around with more dope, it will hold easier.


The learnign curve for me was 1 plane. Make some mistakes, 2nd plane was great... - Many models later, its perfect. 
If you always put limit on everything you do, physical or anything else. It will spread into your work and into your life. There are no limits. There are only plateaus, and you must not stay there, you must go beyond them.” - Bruce Lee.

...
 I Yearn for a world where chickens can cross the road without having their motives questioned.


Advertise Here
Tags:
 


Advertise Here