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Sailplane Finishes



 
 
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  #1  
Old December 25th 11, 02:11 AM posted to rec.aviation.soaring
Buba Smith
external usenet poster
 
Posts: 9
Default Sailplane Finishes

Just wondering about peoples experience with various refinish products
for sailplanes. I am going to refinish parts of my glider over the
next couple of off seasons. Right now I am leaning toward using an
Acrylic Urethane from PPG and a polyester filler. I am familiar with
Simtec Prestec. I have noticed more and more shops and manufacturers
using Urethane products instead of, or on top of, Gelcoat. There are
some reputable people and shops who still use Prestec. I am interested
in comments and experiences with these products from the soaring
community.
With regards to the health issues, I have access to a professional
booth and wear the full suit and mask with fresh air. Thanks for any
input.
R4
  #2  
Old December 25th 11, 02:46 AM posted to rec.aviation.soaring
Dave Nadler
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Posts: 1,610
Default Sailplane Finishes

I think these finishes limited to 50 ft are for wimps !
  #3  
Old December 25th 11, 04:32 PM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 2,124
Default Sailplane Finishes

On Dec 24, 8:11*pm, Buba Smith wrote:
Just wondering about peoples experience with various refinish products
for sailplanes. I am going to refinish parts of my glider over the
next couple of off seasons. Right now I am leaning toward using an
Acrylic Urethane from PPG and a polyester filler. I am familiar with
Simtec Prestec. I have noticed more and more shops and manufacturers
using Urethane products instead of, or on top of, Gelcoat. There are
some reputable people and shops who still use Prestec. I am interested
in comments and experiences with these products from the soaring
community.
With regards to the health issues, I have access to a professional
booth and wear the full suit and mask with fresh air. Thanks for any
input.
R4


The skill level required is much less with "gelcoat'. It is much
easier to fix mistakes.
Prep for paint needs to be really good as there isn't much paint and
sanding out mistakes is trickier. Gelcoat is more tolerant.
AU costs about twice as much for material.
AU more weather resistant. If glider is going to live outside, it is
the thing to use.
Both can give a finish with a useful life exceeding 15 years on a
refinish.
FWIW- I've done both.
The glider I'm doing now will be in Simtek 2481.
Good luck
UH
  #4  
Old December 25th 11, 09:23 PM posted to rec.aviation.soaring
Brad[_2_]
external usenet poster
 
Posts: 722
Default Sailplane Finishes

On Dec 25, 7:32*am, wrote:
On Dec 24, 8:11*pm, Buba Smith wrote:

Just wondering about peoples experience with various refinish products
for sailplanes. I am going to refinish parts of my glider over the
next couple of off seasons. Right now I am leaning toward using an
Acrylic Urethane from PPG and a polyester filler. I am familiar with
Simtec Prestec. I have noticed more and more shops and manufacturers
using Urethane products instead of, or on top of, Gelcoat. There are
some reputable people and shops who still use Prestec. I am interested
in comments and experiences with these products from the soaring
community.
With regards to the health issues, I have access to a professional
booth and wear the full suit and mask with fresh air. Thanks for any
input.
R4


The skill level required is much less with "gelcoat'. It is much
easier to fix mistakes.
Prep for paint needs to be really good as there isn't much paint and
sanding out mistakes is trickier. Gelcoat is more tolerant.
AU costs about twice as much for material.
AU more weather resistant. If glider is going to live outside, it is
the thing to use.
Both can give a finish with a useful life exceeding 15 years on a
refinish.
FWIW- I've done both.
The glider I'm doing now will be in Simtek 2481.
Good luck
UH


beware of tendinitis, it hurts!
  #5  
Old December 26th 11, 01:38 AM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 2,124
Default Sailplane Finishes

On Dec 25, 3:23*pm, Brad wrote:
On Dec 25, 7:32*am, wrote:





On Dec 24, 8:11*pm, Buba Smith wrote:


Just wondering about peoples experience with various refinish products
for sailplanes. I am going to refinish parts of my glider over the
next couple of off seasons. Right now I am leaning toward using an
Acrylic Urethane from PPG and a polyester filler. I am familiar with
Simtec Prestec. I have noticed more and more shops and manufacturers
using Urethane products instead of, or on top of, Gelcoat. There are
some reputable people and shops who still use Prestec. I am interested
in comments and experiences with these products from the soaring
community.
With regards to the health issues, I have access to a professional
booth and wear the full suit and mask with fresh air. Thanks for any
input.
R4


The skill level required is much less with "gelcoat'. It is much
easier to fix mistakes.
Prep for paint needs to be really good as there isn't much paint and
sanding out mistakes is trickier. Gelcoat is more tolerant.
AU costs about twice as much for material.
AU more weather resistant. If glider is going to live outside, it is
the thing to use.
Both can give a finish with a useful life exceeding 15 years on a
refinish.
FWIW- I've done both.
The glider I'm doing now will be in Simtek 2481.
Good luck
UH


beware of tendinitis, it hurts!- Hide quoted text -

- Show quoted text -


Once you're numb it doesn't hurt anymore.
LOL
UH
  #6  
Old December 26th 11, 08:16 AM posted to rec.aviation.soaring
Hagbard Celine
external usenet poster
 
Posts: 58
Default Sailplane Finishes

For some info about using Simtec for a refinish: http://www.archive.jimphoenix.com/archive09/
Links to the Nimbus articles are on the left.

Other than that, I second what "UH" said. If I had a pro do it, I'd
get polyurethane and, since I'm not a very good painter, if I had to
do it myself I'd go with Simtec so I could wet sand a polish out all
the sags, runs an other imperfections I KNOW that I would cause.
  #7  
Old December 26th 11, 09:01 AM posted to rec.aviation.soaring
Andrew Cullum
external usenet poster
 
Posts: 1
Default Sailplane Finishes

At 07:16 26 December 2011, Hagbard Celine wrote:
For some info about using Simtec for a refinish:
http://www.archive.jimphoenix.com/archive09/
Links to the Nimbus articles are on the left.

Other than that, I second what "UH" said. If I had a pro do it, I'd
get polyurethane and, since I'm not a very good painter, if I had to
do it myself I'd go with Simtec so I could wet sand a polish out all
the sags, runs an other imperfections I KNOW that I would cause.
hi there! couldnt resist replying to this one! ca 40,000 is the

polyurethane paint to use at the moment,although the manufacturer is just
in the process of the formulation,so my sprayer tells me.ca 40,000 is used
on composite structures on airliners,so its good for 50,000 feet!plus uv
barrier in it too!
not cheap though,but we are flying airborne rolls-royces arent we!
6,000 for a 15 meter re-spray,thats prepped by the way!
eastern air executive sturgate lincolnshire
andrew s cullum.

  #8  
Old December 27th 11, 04:40 PM
shkdriver shkdriver is offline
Member
 
First recorded activity by AviationBanter: Aug 2008
Posts: 69
Default

Quote:
Originally Posted by Andrew Cullum View Post
At 07:16 26 December 2011, Hagbard Celine wrote:
For some info about using Simtec for a refinish:
http://www.archive.jimphoenix.com/archive09/
Links to the Nimbus articles are on the left.

Other than that, I second what "UH" said. If I had a pro do it, I'd
get polyurethane and, since I'm not a very good painter, if I had to
do it myself I'd go with Simtec so I could wet sand a polish out all
the sags, runs an other imperfections I KNOW that I would cause.
hi there! couldnt resist replying to this one! ca 40,000 is the

polyurethane paint to use at the moment,although the manufacturer is just
in the process of the formulation,so my sprayer tells me.ca 40,000 is used
on composite structures on airliners,so its good for 50,000 feet!plus uv
barrier in it too!
not cheap though,but we are flying airborne rolls-royces arent we!
6,000 for a 15 meter re-spray,thats prepped by the way!
eastern air executive sturgate lincolnshire
andrew s cullum.
after removing 99.9% of the old finishes, I had excellent results using prestec 2081 primer/surfacer, with 4981 patching paste, then topcoating with randolph ranthane. as posted before though, errors not easily corrected. However, by following the directions exactly, I was rewarded with an award winning, durable, slick finish.
As a polyurethane paint finish though, it is worth restating, meticulous prep work is the key!!
Good Luck
Scott W.
N-1521
 




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