News:


  • March 19, 2024, 03:18:11 AM

Login with username, password and session length

Author Topic: SLC OVER Polyspan?  (Read 142115 times)

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #50 on: February 21, 2015, 11:54:01 AM »
SLC is a thin film with adhesive backing. It is applied with an iron ant then heat shrunk. I bond it over undoped Polyspan.

It is available from Corehouse Models.
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline phil c

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2480
Re: SLC OVER Polyspan?
« Reply #51 on: March 29, 2015, 07:22:23 PM »
A little background on SLC covering.  As Lauri guessed, it is polyester with a fuel proof, heat seal adhesive on it.  It's less than .001 thick, so if the edges are properly ironed down they will disappear.  You can barely see the line and most people can't feel an edge less than .001 or .002in. thick.  The film edge will get buried under primer and paint.  I'd be more concerned about the polyspan edges showing through.  The film is about 1oz/sq.yd.

Doug Moon used it on his Gieseke Nobler ARF's a few years ago.  He and others put automotive paint and clear directly on the film with good success.

After six or seven years of leaving planes in the car for a week some of them have developed bubbles on flat balsa sheet sides.  They can be ironed back down without hurting the paint.

The website, sadly out of date, has info or send me an email.  home.earthlink.net/~philcartier
A 10-12ft sample is $6, prepaid.  100ft x 15.5in. roll is $35 plus $6 or USPS Priority mail and $1.25 for PayPal if you don't want to prepay by check or MO

I can't take credit cards at the moment.  Visa screwed me out of a goodly sum on a processing error, so I'm looking for alternatives.
phil Cartier

Offline dennis lipsett

  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 1719
Re: SLC OVER Polyspan?
« Reply #52 on: March 29, 2015, 11:45:01 PM »
So, what brave soul will be the first to try this? It REALLY works.

Larry this is not a new process. I have covered like that on several occasions for years and yes the film will stick tenaciously to either silkspan or Polyspan. You also get a side benefit in that you can put the film on in pieces to achieve a complex color scheme by doing this method. picture of my walt Umland Edge 540 will show you that it is a completely viable solution. Each piece of the wing/tail design was cut separately and applied. Your also right in that the method gives incredible torsional rigidity to the wing

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #53 on: March 30, 2015, 08:21:04 AM »
Wow! Very spectacular decor. Thanks for showing it. CLP**
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Steve Thornton

  • 2017
  • Trade Count: (0)
  • Commander
  • *
  • Posts: 206
Re: SLC OVER Polyspan?
« Reply #54 on: April 24, 2015, 05:22:43 PM »
Thanks for the great thread Larry.  I'm ready to cover my Baby Flite Streak, and need a bullet proof plane to learn to fly inverted, so I am covering with your method and have 2 questions:
1. At what stage should I apply Super-Fil for the fillets...before or after I cover the wing?
2. What size tank should I use for my Norvel Big Mig 061?
I always learn a lot from you guys!
Steve Thornton
"Most of us won't make it out of this world alive."
Steve Thornton

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #55 on: April 27, 2015, 09:01:42 AM »
I would do the fillets after the Polyspan but before the SLC.

A 1 ounce tank should do.
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Steve Thornton

  • 2017
  • Trade Count: (0)
  • Commander
  • *
  • Posts: 206
Re: SLC OVER Polyspan?
« Reply #56 on: May 09, 2015, 02:52:56 PM »
Larry just one more question, what method did you use to apply the  Polyspan?  Did you use dope or Balsarite or stix-it?  Thanks again for this post it's a great idea.
Steve
"Most of us won't make it out of this world alive."
Steve Thornton

Offline john e. holliday

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 22738
Re: SLC OVER Polyspan?
« Reply #57 on: May 10, 2015, 05:12:10 PM »
Go read reply number 6.

Yes, I'm mean and nasty in my old age. VD~ VD~ VD~
John E. "DOC" Holliday
10421 West 56th Terrace
Shawnee, KANSAS  66203
AMA 23530  Have fun as I have and I am still breaking a record.

Offline Steve Thornton

  • 2017
  • Trade Count: (0)
  • Commander
  • *
  • Posts: 206
Re: SLC OVER Polyspan?
« Reply #58 on: May 11, 2015, 01:57:33 AM »
Reply #6  "The only dope used is enough to bond the Polyspan to the wing structure. No dope on the open bays at all!"  Does this mean that the polyspan is not bonded to the ribs?  Sorry if you are getting impatient with these questions, but I don't want to make a mess of a plane I have worked on to be straight and strong.  Doc, I'm not stupid but I'll admit to being ignorant!
Steve
"Most of us won't make it out of this world alive."
Steve Thornton

Offline john e. holliday

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 22738
Re: SLC OVER Polyspan?
« Reply #59 on: May 11, 2015, 11:39:22 AM »
I think you don't want the poly-span doped to the ribs.   Might be faster if you send Larry a PM. He is a nice gentleman.


John E. "DOC" Holliday
10421 West 56th Terrace
Shawnee, KANSAS  66203
AMA 23530  Have fun as I have and I am still breaking a record.

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #60 on: May 13, 2015, 09:27:44 AM »
I do dope theribs tomake them smooth, but don't bond the polyspan to them. Some bonding does happen in the heat shrink and SLC overlay process. You want the polyspan to have as much leeway to shrink evenly as possible.

So faras I have experienced, any film covering will work, but you will find major weight and paint adhesion differences.

Hard as it may be to believe, I don't have ALL the answers!   LL~
« Last Edit: May 28, 2015, 09:12:44 AM by Larry Renger »
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Steve Thornton

  • 2017
  • Trade Count: (0)
  • Commander
  • *
  • Posts: 206
Re: SLC OVER Polyspan?
« Reply #61 on: May 13, 2015, 11:11:57 PM »
Thanks for the work & info Larry.  You have given me a plan & a track to run on.   While you may not have all the answers, you do have a very innovative idea and that's way ahead of me.  I am curious if some Balsarite on the ribs might allow the span to adhere after shrinking & prevent the covering from "floating" while in flight.  It wouldn't add much weight & would add some torsional strength.  I'll give you a report after vacation.
Steve
"Most of us won't make it out of this world alive."
Steve Thornton

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #62 on: May 28, 2015, 09:13:12 AM »
Balsarite should work too.
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #63 on: June 25, 2015, 11:53:54 PM »
Any input from people who have tried this? Enquiring minds want to know, especially if there are issues to be overcome! It works great for me, but I don't do 20 point models.  D>K
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #64 on: August 23, 2015, 08:12:05 PM »
7000+ viewings, and nobody trying it? Astounding!!! Give it a shot on a junker refit and maybe you will come to love it.  How hard is this?  HB~>
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Ara Dedekian

  • 24 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 489
  • Ara Dedekian
Re: SLC OVER Polyspan?
« Reply #65 on: August 24, 2015, 07:45:26 AM »
A little background on SLC covering.  As Lauri guessed, it is polyester with a fuel proof, heat seal adhesive on it.  It's less than .001 thick, so if the edges are properly ironed down they will disappear.  You can barely see the line and most people can't feel an edge less than .001 or .002in. thick.  The film edge will get buried under primer and paint.  I'd be more concerned about the polyspan edges showing through.  The film is about 1oz/sq.yd.

Doug Moon used it on his Gieseke Nobler ARF's a few years ago.  He and others put automotive paint and clear directly on the film with good success.

After six or seven years of leaving planes in the car for a week some of them have developed bubbles on flat balsa sheet sides.  They can be ironed back down without hurting the paint.


Phil

    Here's what happened to my SLC (???) covered Clown racer built in 2001. The covering is what Steve Sacco used on his combat ships back in the '80's and measures .0015". The paint is System Three Inc.'s line of water based urethane marine paints which was sold by Nelson Aircraft Co. (RC stuff). The Clown spent years in attics subject to extremes of temperatures and over the last couple of years shed its paint. The covering was scuffed with OOO steel wool prior to painting.

    Is the covering a thicker version of SLC? Was the water based paint the problem? I have enough of the material left for one or two more planes and it's so light I'd be tempted to try it again as per Larry's suggestion.

Ara

   

   

Rick_Huff

  • Guest
  • Trade Count: (0)
Re: SLC OVER Polyspan?
« Reply #66 on: August 26, 2015, 05:20:03 AM »
My Chipmunk is still looking good after about 1 year.  No problems so far.
Rick

Rick_Huff

  • Guest
  • Trade Count: (0)
Re: SLC OVER Polyspan?
« Reply #67 on: December 21, 2015, 05:06:35 AM »
I've done 6 planes with either SLC or Ultracote over polyspan and I've shrunk the polyspan first.  I'm not sure it makes too much difference, though. 
Rick

Offline jfv

  • 24 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 633
Re: SLC OVER Polyspan?
« Reply #68 on: December 21, 2015, 08:49:18 AM »
I tried it out on one of my nostalgia combat designs from the early 60's that I put together for this fall's GSCB meet.  I wanted the doped tissue look but didn't have the time.  Worked out pretty well.  A number of people asked me what I cleared it with.
Jim Vigani

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #69 on: December 21, 2015, 09:02:10 AM »
I definitely shrink the polyspan first.

That combat job looks great! Imagine what it would weigh and the time and money spent if you tried to get that gloss with dope!  S?P
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #70 on: December 22, 2015, 06:33:01 PM »
I haven't done it, but the free-flight guys do regularly.
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Walter Hicks

  • 2018 Supporter
  • Trade Count: (0)
  • Commander
  • *
  • Posts: 374
Re: SLC OVER Polyspan?
« Reply #71 on: December 22, 2015, 08:02:08 PM »
Larry I am getting ready to cover a Little Jumping Bean wing. I have some Polyspan lite, has anyone tried your method with this?

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #72 on: December 23, 2015, 08:26:13 AM »
Larry I am getting ready to cover a Little Jumping Bean wing. I have some Polyspan lite, has anyone tried your method with this?

Yes, I have, and it is a great use for the light stuff. Coupled with one of the "park flyer" coverings you get a really light weight, fancy finish.  :!

Here is a sample! The model is the Sky Sport, kitted by RSM and designed for .061 power, though a Tee Dee .049 would do the job on shorter lines.
« Last Edit: December 23, 2015, 08:43:53 PM by Larry Renger »
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #73 on: January 28, 2016, 08:11:40 AM »
Yup, Microlite it is.  D>K
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #74 on: January 28, 2016, 07:32:37 PM »
I just got transparent red and yellow from Tower. I don't think they like you LL~ LL~

Also transparent blue from Smith Brothers in Reseda, CA. I DON't know if they do web sales.
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #75 on: February 09, 2016, 12:47:40 PM »
I am just finishing an RSM Ringmaster. The covering is lightweight Polyspan with white Microlite film covering bonded over it.  So far, so good!

The polyspan was ironed down with Mod Podge. I did find the glue soaks through the covering and needs to be cleaned off the iron occasionally. Acetone does the job.

First photo is the polyspan. You can see that it is way lighter than the regular stuff. Second photo is the finished wing. There is a faint texture to the surface, but it sure is shiny!  ;D

Wow! Eleven Thousand hits on this thread, and counting! The only one I found with more is Bob Hunt's electric twin development thread with Forty-nine thousand hits (something to shoot for, guys!) Y %^@
« Last Edit: February 09, 2016, 04:13:41 PM by Larry Renger »
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline john e. holliday

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 22738
Re: SLC OVER Polyspan?
« Reply #76 on: February 10, 2016, 10:33:56 AM »
That is sure shiny.   I got some Mod Podge  to use.   
John E. "DOC" Holliday
10421 West 56th Terrace
Shawnee, KANSAS  66203
AMA 23530  Have fun as I have and I am still breaking a record.

Offline Mike Griffin

  • 2018 Supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2754
Re: SLC OVER Polyspan?
« Reply #77 on: February 12, 2016, 10:45:43 AM »
Larry is definitely n to something here.  I did a test panel a couple of days ago using this method and it appears to be almost bulletproof and very light. 

Mike

Offline john e. holliday

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 22738
Re: SLC OVER Polyspan?
« Reply #78 on: February 14, 2016, 04:46:05 PM »
You forgot there was SLC over the poly-span.   
John E. "DOC" Holliday
10421 West 56th Terrace
Shawnee, KANSAS  66203
AMA 23530  Have fun as I have and I am still breaking a record.

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #79 on: February 14, 2016, 07:16:36 PM »
I agree that Mod Podge adhesion seems a bit weak, but it has proven adequate for me so far. My real complaint is that it soaks through the lightweight Polyspan and sticks to the iron, making it draggy on the tissue.

I have a can of water based contact cement I want to experiment with.  Anyone tried that stuff?
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #80 on: February 20, 2016, 09:37:15 PM »
See the finished model in the main forum.  ;D #^ H^^ CLP** j1 **) (PE**) o2oP DV^^
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline john e. holliday

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 22738
Re: SLC OVER Polyspan?
« Reply #81 on: February 21, 2016, 02:28:31 PM »
I agree that Mod Podge adhesion seems a bit weak, but it has proven adequate for me so far. My real complaint is that it soaks through the lightweight Polyspan and sticks to the iron, making it draggy on the tissue.

I have a can of water based contact cement I want to experiment with.  Anyone tried that stuff?

Yes, it is just as bad.  Have to clean the iron every so often.
John E. "DOC" Holliday
10421 West 56th Terrace
Shawnee, KANSAS  66203
AMA 23530  Have fun as I have and I am still breaking a record.

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #82 on: March 18, 2016, 09:44:32 PM »
Lucky me, I flamed out in the four leaf clover and slid in inveted on asphalt. Lots of rework needed on the canop and rudder, but only a barely discernable scuff on the covering! YAY!
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #83 on: July 02, 2016, 06:40:57 PM »
My Ringmaster has been to hot flying fields for several months now, and the covering is still taut! Nary a wrinkle.   ;D. Looks good as new too. Plus the water slide inkjet decals are still perfect.

You got to try this!
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline john e. holliday

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 22738
Re: SLC OVER Polyspan?
« Reply #84 on: July 06, 2016, 10:10:46 AM »
Larry, my next plane is going to get this treatment.  Thanks.
John E. "DOC" Holliday
10421 West 56th Terrace
Shawnee, KANSAS  66203
AMA 23530  Have fun as I have and I am still breaking a record.

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #85 on: July 06, 2016, 07:06:19 PM »
About time!  VD~  mw~  #^ ;D
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #86 on: July 20, 2016, 04:23:45 PM »
Looks great! Is that a Pathfinder?  H^^
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Fredvon4

  • 23 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2099
  • Central Texas
Re: SLC OVER Polyspan?
« Reply #87 on: July 22, 2016, 11:21:44 AM »
Getting ready to put 8mm blue silk on a Pat Johnston S-1 (ish) Ring Master wing for a plane I hope to keep under 26 oz

Does anyone think the SLC ( I have plenty of) is a good idea on top to keep from dope, dope, dope weight adding?

And if so-- should I put ANY dope ( perhaps one cote of tautening) on the silk panels first?

Remember the RM is a polywog rib set
"A good scare teaches more than good advice"

Fred von Gortler IV

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #88 on: July 24, 2016, 08:00:24 AM »
one very thin coat of taughtining dope might be good. You do NOT want to fill the weave or you will get bubbles of un-attached film. Definitely be sure the silk is well adhered to the ribs.

Let us know how it comes out, and show photos!  H^^
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #89 on: August 14, 2016, 12:43:50 AM »
Today it was over 90 deg. out, and still no hint of slackness or wrinkles in the covering. The plane was left in full sun, not hidden in the tree shade at Whittier Narrows. ;D

That is at least 6 days in the sun, now.

Oh, btw I scored 444.5 in Old Time. That's the good news. The bad news is that was only good enough for fourth.  HB~>
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #90 on: September 22, 2016, 05:00:40 PM »
Nearly 18,000 views and two guys have tried it? What is so hard? Buid a Brodak 1/2 A ARF Clown and try it out.

A: It is a fun plane to own. ( Cox, Norvel, Brodak and AP Wasp all fit, saw off the nose and add a firewall for Cox reed engines, surely you have ONE of the above?)

B: It is quick and cheap. 35 ft Spiderwire lines and an 1/8" ply handle with 2" line spacing certainly won't break the budget.

C: If it sucks,you can strip it easily and do something else. Not like 6 months doping and polishing for appearance points were at stake.

Come on, where is your sense of adventure?
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Vincent Judd

  • Trade Count: (0)
  • Commander
  • ****
  • Posts: 222
Re: SLC OVER Polyspan?
« Reply #91 on: October 01, 2016, 08:45:49 AM »
I wanted to try this on the fuselage of my new Crossfire.  I'm just wondering, since it's all balsa, no open bays like a wing surface, do I gain anything by using the Polyspan under the SLC covering or can I just use the SLC and then paint it?  Thinking about the weight savings by just going with the SLC.

Thanks

Offline jfv

  • 24 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 633
Re: SLC OVER Polyspan?
« Reply #92 on: October 01, 2016, 10:11:10 AM »
Although I posted a photo of my finished Berekely Lancer in the Build Section, I thought I'd also post it here.  Wing is finished with SLC over polyspan.  It came out beautiful.  I'm really getting to like this method for my sport planes with open bay wings.  Fuse and tail feathers were painted with Duplicolor Paint Shop and cleared with 2 part auto. 
Jim Vigani

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #93 on: October 02, 2016, 07:02:09 AM »
WOW! Nice.  y1

I think just SLC alone on solid wood parts is all you need.
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Vincent Judd

  • Trade Count: (0)
  • Commander
  • ****
  • Posts: 222
Re: SLC OVER Polyspan?
« Reply #94 on: October 02, 2016, 09:59:07 AM »
Although I posted a photo of my finished Berekely Lancer in the Build Section, I thought I'd also post it here.  Wing is finished with SLC over polyspan.  It came out beautiful.  I'm really getting to like this method for my sport planes with open bay wings.  Fuse and tail feathers were painted with Duplicolor Paint Shop and cleared with 2 part auto. 

That is a beautiful finish.  Can you give more detail as to how you achieved it?  How did you prep the fuse and tail feathers?  Which 2 part auto clear did you use?

Thanks,

Vince

Offline jfv

  • 24 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 633
Re: SLC OVER Polyspan?
« Reply #95 on: October 03, 2016, 04:30:27 PM »
Vince:

Fuselage and tail feathers were finished with nitrate, carbon veil, then several coats of Eze-kote finishing resin (http://www.horizonhobby.com/eze-kote-finishing-resin--500-ml-dlmbd37) followed by Duplicolor rattle can gray primer.  Color was Dupli-Color Paint Shop lacquer paint then the 2 part auto clear coat.  Clear is ACL-7200-5L by Axis performance coatings.

The Eze-kote is similar to water-based poly but cures much faster and sands very nicely.   
« Last Edit: October 03, 2016, 06:10:52 PM by jfv »
Jim Vigani

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3995
Re: SLC OVER Polyspan?
« Reply #96 on: November 17, 2016, 11:31:23 PM »
 How did you do the decals? That is a great looking model!

What prep did you do for the paint over SLC?  ???
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline Dane Martin

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2804
  • heli pilot BHOR
Re: SLC OVER Polyspan?
« Reply #97 on: November 18, 2016, 08:34:34 AM »
Although I posted a photo of my finished Berekely Lancer in the Build Section, I thought I'd also post it here.  Wing is finished with SLC over polyspan.  It came out beautiful.  I'm really getting to like this method for my sport planes with open bay wings.  Fuse and tail feathers were painted with Duplicolor Paint Shop and cleared with 2 part auto. 

Omg that looks amazing!

Offline Fredvon4

  • 23 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2099
  • Central Texas
Re: SLC OVER Polyspan?
« Reply #98 on: November 18, 2016, 09:10:15 AM »
Yes it does...

I usually hate cloth hinges but those blended in very well

Starting to get enough dry air days here to try my hand at a SLC over silk or poly wing

This Lancer inspired me to get things set up
"A good scare teaches more than good advice"

Fred von Gortler IV

Offline jfv

  • 24 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 633
Re: SLC OVER Polyspan?
« Reply #99 on: November 18, 2016, 07:08:02 PM »
Decal was made on my vinyl cutter.  Scanned the image, traced it in AutoCad, then cut it out with the cutter.  It's all about the tools you know!
Jim Vigani


Advertise Here
Tags:
 


Advertise Here