REFLECTOR: Michaels Epoxy Pump or handpumps ?

[Patrick Sieders]

Well I guess the consensus told me he story that I was leaning towards. Andy’s idea about switching to West Systems product is something that I am going to research. I still have to turn the airplane over and lay down a layer on the top strake and the main spar. Could I use the West systems for that as well ? (before I reinvent the wheel ?)

Thanks all for the response. Sorry about the two emails, my computer crashed while sending my first email and when reflector didn’t send it back I concluded that it was not received and resend it, finding out afterwards Reflector had issues of its own.

gr. Patrick


From: Alex Balic 
Sent: Monday, January 30, 2012 12:05 PM
To: 'Velocity Aircraft Owners and Builders list' 
Subject: Re: REFLECTOR: Michaels Epoxy Pump or handpumps ?

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

  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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