integerspin Posted February 2, 2012 Share Posted February 2, 2012 I was wondeing if anyone isntalled them. I just made an extension for my garage oven, to powder coat some long parts not to heat long sausage rolls;-) I don't want to use rockwool/fibreglass as it will be dusty[won't it], the oven blows air thru the front and will possibly blow dust everywhere. I was going to use PIR board, eventually got a mail from Celotex telling me it defineitely wasn't any good for 200ºC. I am sure there must be ceiling tiles that insulate and if they are fireproof they will be OK for half hour[at most] at 200ºC. I asked in a builders merchant's they weren't to helpfull. Most annoying thing is I extended the oven 14.5", a pair of rocker covers and a pair of girder forks I need to coat fit. I just found a couple of items that could do with coating, they are a few inches to long to go in the extended oven. Quote Link to comment Share on other sites More sharing options...
crclifford Posted February 2, 2012 Share Posted February 2, 2012 Just a thought, have you looked to see if there are any tiles that are made like the fire bricks you used to find in old metal stove fires? Will repost if I can find my old order of the fire bricks. HTSH Chris Quote Link to comment Share on other sites More sharing options...
stuck Posted February 2, 2012 Share Posted February 2, 2012 Not ceiling tiles but we use insulation tiles that will stand temps in excess of 400 degrees, only trouble is they are around 2" thick. Let me know if you want the details. Quote Link to comment Share on other sites More sharing options...
ballcock Posted February 2, 2012 Share Posted February 2, 2012 Have you looked at Supalux/ Aspetolux boards from a plumbers mechant? Normally supplied in 3' x 2' boards about 3/8ths thick but you can get it in an 8x4 if you need it. Is used for fire proofing compartments and boilers. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted February 2, 2012 Share Posted February 2, 2012 Why not just use plasterboard? Fire rated for 30 mins at 3/8" thick IIRC. Quote Link to comment Share on other sites More sharing options...
zoltan Posted February 2, 2012 Share Posted February 2, 2012 We have built small kilns for stress relieving parts from a ceramic wool which you can spray over with a heat proof sealer/rigidiser to reduce dusting. It is a very effective insulator even in a 1" thickness This stuff http://www.bathpotters.co.uk/products/25mm-superwool-607-max-blanket/4124/ Quote Link to comment Share on other sites More sharing options...
chazsmash Posted February 3, 2012 Share Posted February 3, 2012 Not sure if this is correct, but there is a tile backing board on the market that is made of a cementious product which i presume is heat resistant to high temperatures, very similar to the asbestolux material used as a soffit on roofs but thicker. 1200x900 sheets if my memory serves at about a tenner or so a sheet, think they sell it in B&Q. Hope this is of some help. Cheers Charlie Quote Link to comment Share on other sites More sharing options...
HoSS Posted February 3, 2012 Share Posted February 3, 2012 Rockwool, with a Stainless steel sheet on the oven side... Its what we used to use in 300 degree ovens. Quote Link to comment Share on other sites More sharing options...
integerspin Posted February 4, 2012 Author Share Posted February 4, 2012 Rockwool, with a Stainless steel sheet on the oven side... Its what we used to use in 300 degree ovens. That's what i was trying to avoid. There is a fan in the top of the oven, it blows the hot air from inside the case out the front. So the fan will be blowing over the top of the extension, if it's double skinned and rockwool filled, the rockwool is going to have to be sealed in to prevent dust. Still I have enough ali left to doubel skin it, so it likely thats what I will end up doing. The double skin will also have to come off to remove the extension, the bolts holing it to the oven are located round the edge. I should'nt have been such a skinflint, I should have paid someone to coat the bits[no couldn't be doing that], or wet painted them. I shoudl have built an oven from scratch;-) Or not thrown away the old sterilising oven from the hospital I used for carbon. Quote Link to comment Share on other sites More sharing options...
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