REFLECTOR: priming "how to"?

Mon Jan 7 15:44:28 CST 2008

Grigore,

Just like Alex, I used UV Smooth Primer on my FB wings and really liked it, for all the
reasons he explained.  I know of others that have used it, have painted over it with
different brands of paints and are happy with the results too.  I will use it again on my
fuselage and canard as well.   It is an easy to mix, UV protective, water-based urethane,
compatible with many products and paints.  I bought it from Sacramento Sky Ranch.  The
best price I found, at least at the time (around $135/gal, tax and shipping included) 

Check the manufacturer's info here:
 <http://www.polyfiber.com/products/uvsmoothprime.htm>
http://www.polyfiber.com/products/uvsmoothprime.htm

. Just another possibility to consider.  

Regards,
Jorge Bujanda
Velocity XL FG 
Palmdale, CA
Website:  http://members.dslextreme.com/users/jbujanda/

"Make your best case... not the best case."
"Spare the noise... convince through silence."
                                                                         JB

  _____  

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Alex
Balic
Sent: Monday, January 07, 2008 7:17 AM
To: 'Velocity Aircraft Owners and Builders list'
Subject: Re: REFLECTOR: priming "how to"?

I used the smooth prime method- I did make the wings though, so there was more work
involved- but I liked 2 things about it- first- did not require a spray gun/overspray
mess/clean up mess- and using by the roller, I could force the material into all of the
pin holes- which were obvious during application- it is also water based so cleanup from
my hands was simple, sticks like crazy of you don't get it off before it dries, and sands
down to a very good smooth finish- just as the Awlgrip does- also- since you are just
burning cheap foam rollers to apply, you can mix up just enough to coat what you want to
coat.

  _____  

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Ron
Brown
Sent: Monday, January 07, 2008 8:23 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: priming "how to"?

Sorry, yes you will need the Awlgrip reducer too since it is compatible with the paint and
converter.  A quart of that will be needed too.  You can use it to clean up your spray
gun, etc after shooting.  

Ron
----- Original Message ----- 
From: Grigore <mailto:grigore.rosu at gmail.com>  Rosu 
To: Velocity Aircraft Owners <mailto:reflector at tvbf.org>  and Builders list 
Sent: Monday, January 07, 2008 9:06 AM
Subject: Re: REFLECTOR: priming "how to"?

I also have fast built (wings, canard, fuselage),  so probably 1 quart of each is what I
need.  Did you also use their reducer (T0006) for spraying, or you used something else?

Thank you,
Grigore
On Jan 7, 2008 8:00 AM, Ron Brown <romott at roadrunner.com> wrote:
I don't know the difference between the 01 and 02.  I used the 3001.  A quart which will
wind up being two quarts after mixing with the converter should be plenty unless you are
building your own wings.  If you are building your own wings, then you'll probably need
another quart.  I had fast build wings - perhaps someone else can give a better number for
how much primer is needed.  

Ronnie 
----- Original Message ----- 
From: Grigore Rosu <mailto:grigore.rosu at gmail.com>  
To: Velocity <mailto:reflector at tvbf.org>  Aircraft Owners and Builders list 
Sent: Monday, January 07, 2008 8:44 AM
Subject: Re: REFLECTOR: priming "how to"?

Thank you Ron and Al, based on your answers I did some investigation on the web.  I'm
affraid I cannot buy the primer from our local shops here in the small Urbana/Champaign
(mid Illinois), so I'll have to order it online.  There appear to be some options outhere,
just to confuse me :) 

Option 1

Awlgrip 545 Epoxy Primer White Base awlD8001GL
   mixed 1:1 with
Awlgrip Converter for 545 Epoxy Primer awlD3001GL

and

Option 2

Awlgrip 545 Epoxy Primer White Base awlD8002GL
   mixed 1:1 with
Awlgrip Converter for 545 Epoxy Primer awlD3002GL

The difference between the two is "001" versus "002".

In both cases, it is recommended to reduce the mixture up to 25% with

Awlgrip Std. Spraying Reducer for Epoxy Primers awlT0006GL.

I'm assuming we spray this primier.  Brushing it comes with a different reducer.

Am I on the right track?  Is this what you are using, too?  Which one should I order, the
"001" or the "002"?
Also, these appear to be rather expensive ... Apparently they can all be bought in either
quarters or gallons.  Can you estimate like how much of each I will need for my airplane
(Velocity SEFG, fast built)?

Many thanks again,
Grigore

On Jan 7, 2008 12:00 AM, Al Gietzen <ALVentures at cox.net> wrote:
Can anybody help me suggesting some place where this process of priming, as we need it for
Velocity, is explained?  Is it necessary to protect the work underneath, or it is being
used just for aesthetical reasons during the building process?  Does it add any
unnecessary weight? 

Thank you,
Grigore
Grigorie;

Just adding a bit to what Ron has said; we use a primer coat for a number of reasons. It
does provide protection of the surface by sealing, and contains a UV blocker; it acts as a
'filler' to help smooth the surface; and provides for good adherence of the top coat final
finish.  The parts come from Velocity (at least mine did) with a coat of the US Paint 545
Awl-grip that Ron mentioned, so it made sense to use that again.  There are other expoxy
primers that you can use.  

These primers are 'sandable', and you will need to sand to about a 400 grit finish before
putting on a top coat.  However; it is good to leave unsanded until you are ready for
final paint because once you sand off the gloss surface it is more likely to absorb
contaminants (like oil and finger prints) that are diffictult to clean up.  You are likely
to find that for a first coat over fiberglass you may want to first use a 'high build'
primer to fill pinholes and surface imperfections.  You can use either a good urethane or
expoxy primer for this coat. Most of this will get sanded off before applying the final
coat of expoxy primer. 

Follow mixing, thinning and application instructions from the manufacturer of the primer
or finish coats that you use. 

Good luck,

Al

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