Julian Tether wrote: > In message > <[email protected]>, > [email protected] writes >> Every season I need to rake out, refill and paint the joint between >> flue and stove. Every season I use 100g of fire cement and keep at >> least 150g to go hard and chuck out the following year. >> >> I just spotted this >> >> Everbuild Heat Mate Sealant (available in black & red) >> >> I quote - Heat Mate Sealant is a high modulus permanently flexible >> 100% silicone which is temperature resistant up to 300°C. Ideal for >> sealing industrial and high performance gaskets, oven doors etc. >> Conforms to BS 5889(B) and ISO 11600. >> >> http://www.jgpfixings.co.uk/prod5.asp?ID=275&offset=&prod_id=199 >> >> Why have I never seen this in chandleries ? Seems to me that rake >> out, paint and then seal with this gunk might be more effective. >> I'd probably choose the black. > > Its not good at the bottom of the flue, not high enough temperature. > Works a treat at the top as do all the other HT silicone sealant. > The way it "should" be done is fire cement at the bottom and silicone > at the top. This allows movement of the flue and helps to prevent the > fire cement cracking at the bottom. > I suspect that many flues are done with cement top and bottom which > usually leads to the bottom cracking, that and not having the correct > collar for the flue join to the stove...................
This came up on another group recently - someone put up a link to the MSDS - if it gets too hot it can give off formaldehyde, so I would agree - only use it at the top. Ron Jones Process Safety & Development Specialist Don't repeat history, unreported chemical lab/plant near misses at http://www.crhf.org.uk Only two things are certain: The universe and human stupidity; and I'm not certain about the universe. ~ Albert Einstein ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/canals-list/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/canals-list/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
