Re: Suppliers fyresleeving

["Jeff M" <tystorm@email.msn.com>]

Thanks Charles, always open to more info and corrections (ego not as big as
my engines ;-).  The specs on the stuff they have to answer Grumps is:

Silicone coated fiberglass sleeving (Fyrejacket) has SAE Aerospace
Standards 1055B good for 2,000 df for 15 minutes of longer (still with you
here Charles on heat soak).  500 df continuous and good down to being
flexible to -65 df.  In 5/16 to 4 inch versions.

Unsaturated Thermojacket is made of 3M's Nextel 312, good for continuous
2,600 df and short tem of 3,000 df.

Saturated thermojacket sleeving will handle as high as 1,000 df.

Now, unless the fyrejacket-etc is not allowed air movement to cool, Charles
is correct and inside temps would catch up.  If we get the car moving and/or
the air flow capabilities in the area are good (and convection occurrence
would
help), short term high temps would be the case and should help the insulated
sleeving in doing its job.  Now for nasty areas, Themotec sells an aluminum
reflective ceramic shielding tape (or many versions of sheets non-adhesive
type), that holds on while exposed to some pretty high temps (not exhaust
pipes), the reflective surface helps in controlling radiant heat and the
ceramic conducted heat.  Now, not to argue as the facts do speak for them
self's so to only quote from the catalog, there seems to be some ability
stated for the ceramic sleeving in keeping temps down for longer times (?,
that's what it says): "Ceramic sleeving protects wires, cables, hoses and
tubing from long term high temperature exposure and from molten splash and
nearby fire".  Of course we have so many guys here to like to lab test
everything, someone interested enough could test this stuff with 3 temp
sensors, one inside the sleeving, another on the sleeving surface and
another logging the heat source temperatures.

Jeff M


> Isn't actual Firesleeve for continuos use at up to 380dF?.
> If not is there any for like 380dF continuos.
> Grumpy
>
>
>
> > Hi Jeff, thought I'd interject. The sleeve you mentioned is only
effective
> > when the heat is periodic. If the heat is applied for an extended
> > (Subjective) amount of time it will heatsoak and you'll experience the
> same
> > problem that prompted you to use the stuff in the first place. Just
> > something to keep in mind.
> >
> > Charles Brooks
> > Mid-Atlantic Speed Shop
> > http://www.massmotorsports.com
> >
> >
> > ----- Original Message -----
> > From: Jeff M <tystorm@email.msn.com>
> > To: <gmecm@diy-efi.org>
> > Sent: Friday, May 19, 2000 4:06 PM
> > Subject: Re: Suppliers
> >
> >
> > > They
> > > have things like Firesleeve which is a nice thick ceramic woven
sleeve,
> > with
> > > or without the nice silicone rubber outer section, this is good to
> enclose
> > > fuel line that typical heat up in the engine bay, as well anything
else
> > you
> > > want to keep cool or from melting or heat fatiguing, Silver is my
> favorite
> > > but they default that yucky orange if you do not tell them silver
(yes,
> > > Taylor from Summit for one has this type of stuff too).
> >
>
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