Sealant

beamendsltd · Jan 17, 2005

In message <[email protected]>
"Richard" <richardsemail [email protected]> wrote:

> The sump on our Discovery has no gasket but only RTV sealant. Its formed
> slightly differant to sump on our V8 90 in that its not flat on the mating
> surface so a cork gasket wont work. Ours is 1995, dunno if they are still
> the same
> Richard
>
> "SimonJ" <[email protected]> wrote in message
> news:[email protected]...
> > >
> >> Years ago there used to be a sealant called RTV. It looked very similar
> >> to
> > silicone sealant & can be
> >> often mistaken for it.
> >>
> > That's because it is it!
> >
> > RTV simply stands for Room Temperature Vulcanising, and is the form of
> > silicone sealant generally used for automotive work.
> >
> >
>
>

The Genuine article is STC50550 - £6.58 inc VAT here.

Richard
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Steve Taylor · Jan 17, 2005

beamendsltd wrote:

>
> The Genuine article is STC50550 - £6.58 inc VAT here.

....and I'll need a tube of that too.

Steve

SimonJ · Jan 17, 2005

>
> The Genuine article is STC50550 - £6.58 inc VAT here.
>
Which is a 50ml tube of silicone sealant.

You could of course just go to your local hardware store, and buy a 300ml
tube for about £2,00.

Richard · Jan 17, 2005

Well, I wandered into Halfrauds to buy some Hylomar - nil stock. OK
I'll buy some Plus Gas because the nuts are bound to need some
persuasion. Not nil stock but a discontinued item!!!!

What is the world coming to???

Richard

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Steve Taylor · Jan 17, 2005

SimonJ wrote:

>>The Genuine article is STC50550 - £6.58 inc VAT here.
>>
>
> Which is a 50ml tube of silicone sealant.
>
> You could of course just go to your local hardware store, and buy a 300ml
> tube for about £2,00.
>
>

We have just hammered this out, oil resisting sealant is NOT bathroom
sealant.

Steve

beamendsltd · Jan 18, 2005

In message <[email protected]>
"SimonJ" <[email protected]> wrote:

> >
> > The Genuine article is STC50550 - £6.58 inc VAT here.
> >
> Which is a 50ml tube of silicone sealant.
>
> You could of course just go to your local hardware store, and buy a 300ml
> tube for about £2,00.
>
>

Except that the real thing is a Sycoflex type sealant, heat and
oil resistant - not the same thing at all......

Richard

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Dougal · Jan 18, 2005

> Except that the real thing is a Sycoflex type sealant, heat and
> oil resistant - not the same thing at all......

.... and if you really meant to say Sikaflex, those grades are not even
an RTV silicone and most certainly not suitable for the mechanical
sealing tasks we have been discussing!

Steve Taylor · Jan 18, 2005

Dougal wrote:

> ... and if you really meant to say Sikaflex, those grades are not even
> an RTV silicone and most certainly not suitable for the mechanical
> sealing tasks we have been discussing!
>
Certainly looks like a polyurethane based sealant though. Seems too hard
for an RTV silicone.

Steve

Dougal · Jan 18, 2005

>> ... and if you really meant to say Sikaflex, those grades are not even
>> an RTV silicone and most certainly not suitable for the mechanical
>> sealing tasks we have been discussing!
>>
>
> Certainly looks like a polyurethane based sealant though. Seems too hard
> for an RTV silicone.

I missed your earlier item in the thread and risk misinterpreting what
you said. Sorry if that's the case.

I've no idea what the base for STC50550 is so I'll keep my mouth shut!

beamendsltd · Jan 21, 2005

In message <[email protected]>
Richard <[email protected]> wrote:

> When the manuals talk about using sealant in place of gaskets when
> re-fitting my diff, do they mean anything specific or what?
>
> TIA
>
> Richard
>

The most common would be Hylomar Blue. Using this stuff is all
well and good in an emergency, but there is a danger of blobs
of the stuff being squeezed out of the joint on the inside.
For diffs this doesn't matter, but on a coolong system it can
lead to blocked water ways etc.
Personally, I find it a lot easier to lightly grease a
"paper" gasket..........

Richard
--
www.beamends-lrspares.co.uk [email protected]
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Austin Shackles · Jan 21, 2005

On or around Fri, 21 Jan 2005 08:40:41 +0000 (UTC), beamendsltd
<[email protected]> enlightened us thusly:

>In message <[email protected]>
> Richard <[email protected]> wrote:
>
>> When the manuals talk about using sealant in place of gaskets when
>> re-fitting my diff, do they mean anything specific or what?
>>
>> TIA
>>
>> Richard
>>
>
>The most common would be Hylomar Blue. Using this stuff is all
>well and good in an emergency, but there is a danger of blobs
>of the stuff being squeezed out of the joint on the inside.
>For diffs this doesn't matter, but on a coolong system it can
>lead to blocked water ways etc.
>Personally, I find it a lot easier to lightly grease a
>"paper" gasket..........

I favour cornflake boxes for making gaskets. bit of grease or oil on 'em if
fitting to a water joint helps.

--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
"You praise the firm restraint with which they write -_
I'm with you there, of course: They use the snaffle and the bit
alright, but where's the bloody horse? - Roy Campbell (1902-1957)

Richard · Jan 21, 2005

beamendsltd wrote:
>
>
> The most common would be Hylomar Blue. Using this stuff is all
> well and good in an emergency, but there is a danger of blobs
> of the stuff being squeezed out of the joint on the inside.
> For diffs this doesn't matter, but on a coolong system it can
> lead to blocked water ways etc.
> Personally, I find it a lot easier to lightly grease a
> "paper" gasket..........
>
> Richard

Thinly smeared Hylomar Blue on mating faces and left until I'd finished
my coffee - per instructions from man-at-Hylomar - and then fitted
'paper' gasket and diff.

Richard

--
Real email address is RJSavage at BIGFOOT dot COM

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Sealant

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