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Post Info TOPIC: silicone sealant in hot water?


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silicone sealant in hot water?


I found an old S. steel urnie at sal army yesterday for $15.Yes the electrics have been checked before sale. 
When I filled it though it leaks at the rubber gasket where the tap joins the body and where the handle screw penetrates the body. I have a silicone gun here but will it stand the boiling if I apply it to the inside?
                                                                       Thanks:)    Denise



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There are that many different silicone sealants on the market I doubt that there's a "one size fits all" answer to that question. Someone with more knowledge than me on matters silicone (and mine's not much) may have better answer. It does occur to me that imparting a taste or worse to the water would be an issue. Not good for the morning heart-starter cup of Twinings Russian Caravan! (made with leaf tea in a china teapot of course!)


-- Edited by jimricho on Sunday 14th of February 2010 07:24:22 PM

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sorry, should have said its not for cooking or  drinking.....for washing etc only     :)

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Silicone Sealant
Denise, as a retired plumber, I did some tests on the temperature of silicone verses tankmakers solder.
We adhered with roof & gutter silicone & soldered some flat headed galvanised clouts to a piece of galvanised iron, when set, we applied a gas flame along the rear of the strip of iron where the nails were adhered, the soldered ones dropped off first so the temperature of boiling water should not hurt the silicone, as mentioned about taste I am not sure, it is definatly ok cold, but heated?? I don't know, but in your case it doesn't seem to matter.
Cheers
Ian
kayenian
Berri

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Hi Ian, thanks for that, think I'll try to get parts from manuf. but in worst case I'll give it a go!   Cheers :)

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Thanks from me too Ian, I was interested in an answer to that question too.

Jim

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Well Kayenian, welcome to Nomads. Thanks for you contribution and I hope you enjoy your stay here.

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Just had a look on my silicone tubes packet,Dow/Corning General Purpose 732 is rated from -60 to 177deg. C so it should do the job OK

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Thanks guys....:)

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Hi Denise...Hope you will start a blog soon. Its pretty obvious to most here you are doing things carefully and with study, combine that with your intellect and we have an interesting read for sure. Please think about a blog.

There are heaps of silicones and derivatives on the market and if i were you i would prefer to use the right one for the job especially when you are going to drink the water.
From my knowledge the one silicon all fish tank makers use is selleys window and glass. If its safe for fish long term then it has to be safe for us. Better to spend $10.00 i think.



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Hi Pete, I've not thought of doing a blog....I wouldn't know where to start actually. I have thought about writing a book though about living in the bush in N Qld. Thanks for such a complimentary response.!  :)  

As for the sealant , I rang plumbers suppliers and it turns out its a top of the range urnie worth hundreds of dollars. So I called the Co..ZIP and found a kit to replace the bits. For $40 ..kit and $15 ..Sally Army I've got a cracker of a 10 L urnie which I hope to fit into my Vito. 
  Happy me!!!  :))  

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Well done Denise!

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Thanks Jim, I get great satisfaction out of these little victories .Its more fun than having the money to walk in and buy it new for me!     :)

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