Re: [RCSE] Micro balloons??

2002-08-11 Thread Steve Witt

On Sat, 10 Aug 2002, Ricardo Rodríguez Wilson wrote:

 Dudes,

 I've been lurking in this list (and others) for a couple of years because
 I'm switching from power to silent (sailors) I've learned a lot, but for
 now, there are a couple of things I'm quite sure and I think you 'd help me.

 What are microballoons?

 How can I change the consistency of epoxie, i.e., more  jelly-like?

 Finally, I will apreciate your help, and I'd like to say I live in a third
 world country, so much of your stuff is not here,... yet.

Microballoons are very tiny little glass spheres that you mix with epoxy
to get a more paste-like epoxy mix. They are used as gap-filler, for
making fillets and to lighten a given amount of epoxy that would be
applied (sometimes used for park flyers or indoor flyers).

I don't know how you would order them, but Tower Hobbies
http://www.towerhobbies.com has several different brands of
microballons.



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RE: [RCSE] micro balloons

2001-04-20 Thread Scobie Puchtler or Sarah Felstiner

Micro balloons are spherically shaped silica hollow 'beads' that are so
small they appear as simply white powder. Because they are hollow, they are
very light. They are used as a lightweight filler for epoxy, to make a paste
for creating fillets or other epoxy 'fill' applications. The resultant
mixture of epoxy and microballoons is not considered particuarly strong, but
may serve more than adequately for some structural needs. There are many
other useful fillers for expoxy, depending on the desired strength,
flexibility, color, and weight of the resulting mixture. Some of these
include finely chopped carbon fiber, finely chopped cotton fiber, wood flour
(very fine wood dust), etc. There are even fillers where each particle is a
little flat 'plate' shape. The ability to mix literally different shapes of
micro-fill into epoxy is one of the things that makes composite construction
aspire to idealized structure at the microscopic level. Creating different
epoxy 'butters' with combinations of these fillers tailored to specific
structural needs is part of being a skilled builder in composites.

Lift,
Scobie in Seattle

 -Original Message-
 From: Liveto Soar [mailto:[EMAIL PROTECTED]]
 Sent: Friday, April 20, 2001 8:03 AM
 To: [EMAIL PROTECTED]
 Subject: [RCSE] micro balloons


 what the heck is a micro balloon?
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