REFLECTOR: Oil in Fiberglass

Hiroo Umeno humeno at microsoft.com
Tue Feb 22 16:56:51 CST 2011


I heard that trick and I am yet to try it.  Do you go "top down" or "bottom up"?

Meaning, from the side where oil entered in the first place or from where it started seeping out?  I am thinking bottom up but wanted to check...

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Alex Balic
Sent: Tuesday, February 22, 2011 12:42 PM
To: 'Velocity Aircraft Owners and Builders list'
Subject: Re: REFLECTOR: Oil in Fiberglass

Yea- the Freon has almost no surface tension, so it will penetrate right in there, then it will boil its' way back out and takes the oil with it- just shoot it on, and sort of wipe it up at the same time (using gloves) it will completely degrease the surface.

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From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Brian Michalk
Sent: Tuesday, February 22, 2011 9:48 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Oil in Fiberglass

How does this work?

Spray the freon in, and it penetrates the material, then pushes the oil out?

On 2/22/2011 8:19 AM, Alex Balic wrote:
USE Freon- but make sure you get the can that does not have oil added to it -, and make sure you keep your hands away from the liquid it is very cold. It will take the oil out.

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From: reflector-bounces at tvbf.org<mailto:reflector-bounces at tvbf.org> [mailto:reflector-bounces at tvbf.org] On Behalf Of Al Gietzen
Sent: Monday, February 21, 2011 7:42 PM
To: 'Velocity Aircraft Owners and Builders list'
Subject: Re: REFLECTOR: Oil in Fiberglass


Use a heat gun and see if oil bubbles out.

John
Be careful.  You could easily damage the foam core, and/or cause some distortion of the fiberglass by heating above 160-170F.  And the oil doesn't boil off; it will only come out due to expansion of air in the pores.  Perhaps better off flushing with a solvent.
Al

--- humeno at microsoft.com<mailto:humeno at microsoft.com> wrote:

From: Hiroo Umeno <humeno at microsoft.com><mailto:humeno at microsoft.com>
To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org><mailto:reflector at tvbf.org>
Subject: Re: REFLECTOR: Oil in Fiberglass
Date: Tue, 22 Feb 2011 01:10:59 +0000

I have the same issue in my nose compartment.  The oil cooler pipe had a slow leak at the fitting and has saturated the un-sealed floor of the nose compartment with oil.  I noticed it when I saw that the cockpit floor was rather slippery.  Is there  way to get that out?  Or is that a permanent "feature" of my plane?



Hiroo



From: reflector-bounces at tvbf.org<mailto:reflector-bounces at tvbf.org> [mailto:reflector-bounces at tvbf.org] On Behalf Of aminetech at bluefrog.com<mailto:aminetech at bluefrog.com>
Sent: Saturday, February 19, 2011 5:49 PM
To: Velocity Aircraft Owners and Builders list
Subject: REFLECTOR: Oil in Fiberglass



I didn't realize how porous fiberglass is.  The oil line connection to the cooler was leaking.  I cleaned up the oil and was using a heat gun on heat shrink tubing.  In the process the fiberglass under the cooler got heated up and oil began bubbling out of the fiberglass, a LOT of oil.  So I used the heat gun on all areas that had oil and more oil came out.  When I have time, I'll check other areas to see what bubbles out.



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