REFLECTOR: Michaels Epoxy Pump or handpumps ?

[Alex Balic]

The Michaels unit is great when you need to mix a lot of epoxy at a time, or
when you are working on a lot of layups that you are always needing the
resin for- most of this work is early on in the building process. I used the
Michaels pump with good success when building the flying surfaces and
fuselage, but then it sat for a while, and got gummed up- I took it apart,
and cleaned it up, then used it a couple of times before it sat and got
gummed up again, so I just tossed it and started using a scale to measure
the resin for all of the occasional small jobs I had.

 

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of John Dibble
Sent: Monday, January 30, 2012 8:42 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Michaels Epoxy Pump or handpumps ?

 

I second that.  I've never used a pump.  I use a scale that measures to 0.01
gram.  I can mix as little as 5 grams with high precision for those really
little jobs. 

John 

Jack Prock wrote: 

Hi Patrick, I have the expensive Michaels pump and it works great when
moving a lot of epoxy through it, like when I was buildingmy wings and
canard. But, if you aren't using a lot of epoxy, the pump tends to get
gummed up.After I finished the big pieces, over time the epoxy tended to get
sludgy and hard to move through the pump.I spent more time cleaning it than
using it. If you only have small parts, just buy a good electronic scale and
use hand pumping to measure outthe ratio. This works fine and you won't
waste time with all that cleaning. My epoxy pump is now cleanedand empty and
sitting in storage, while I finish the rest of the plane. Jack 

----- Original Message -----

From: Patrick Sieders <mailto:pjsieders at comcast.net> 

To: reflector at tvbf.org

Sent: Friday, January 27, 2012 7:07 PM

Subject: REFLECTOR: Michaels Epoxy Pump or handpumps ?

  

Hello All, 

I would like some input into what epoxy pumps to buy. I know the difference,
my question is more about if it's worth it looking at the state of my
project. 

Some may remember that I took over Tom Tolton's XL5 Fg. Since the airplane
hull is pretty much done, I am looking at some smaller epoxy projects to
finish it up.  

So should I buy the more expensive Michaels ratio pump or could I suffice
with the handpumps ? 

Take a look at my project as it sits in my garage right now (
http://www.sieders.com/sieders/velocity/index.htm ) and I would love to hear
your opinion. 

Thanks, 

Patrick Sieders 

Nashville TN USA 

XL5-FG 

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