Re: Boron safety data sheet

From: Mark F1diddler <f1diddler_at_yahoo.com>
Date: Wed, 05 Jan 2011 20:38:34 -0000

--- In Indoor_Construction_at_yahoogroups.com, "Bill Gowen" <wdgowen@...> wrote:
>
> Or for a different solution carbon tow pulled from Russian unidirectional carbon fabric weighs 8.4 mg for 24". Probably not as strong as boron but is breakage a problem for boron on wing spars?d\

That's an attractive weight. But no, *tensile strength* for a pair of .004" borons is not a problem with spars--if anything, overkill maybe. The bigger consideration for me is adhesive weight vs. attachment lifespan, meaning I often have to add more glue (weight) later in the model's life. So, what is a common glue weight for attaching the above carbon fiber? And are you able to pull out a single strand 24" long? My attempts with carbon tow years ago amounted to getting smaller fuzzy tow out of bigger tow. Does "fabric" more or less mean tow impegnated with some epoxy, baked in order to get straight, unidirectional fabric?
Mark F1diddler
Received on Wed Jan 05 2011 - 12:38:36 CET