CoffeeRoastersClub Senior Member Joined: 6 Jul 2005 Posts: 2,135 Location: Vernon Expertise: Professional
Espresso: Vintage La Pavoni Lever... Grinder: KitchenAid Pro Line Burr... Vac Pot: Vintage Silex Drip: Aeropress, French Press Roaster: "EL SUPREMO" w/QuikSPIN-CRC...
Posted Thu Jul 10, 2008, 7:41pm Subject: Need Very High Temp Heat Resistant Glass
Hello. I am looking for an online supplier of very high temp heat resistant glass. Needs to be clear, no tint involved. Heat range up to at least 700 degrees Fahrenheit. From 1/8" thick to preferably 1/4" thick, 6 inch by 6 inch square.
Any suggestions? I tried McMaster, but too $$$. I have found other suppliers are sometimes, and often, less expensive, and am hoping that will be the case here.
CoffeeRoastersClub Senior Member Joined: 6 Jul 2005 Posts: 2,135 Location: Vernon Expertise: Professional
Espresso: Vintage La Pavoni Lever... Grinder: KitchenAid Pro Line Burr... Vac Pot: Vintage Silex Drip: Aeropress, French Press Roaster: "EL SUPREMO" w/QuikSPIN-CRC...
Posted Sat Jul 12, 2008, 10:10am Subject: Re: Need Very High Temp Heat Resistant Glass
Frost Said:
I'm thinking the high performance cermamic 'glass' used in modern wood stoves would safely meet your needs to well over 700F.
Hello. I am familiar with the glass you reference. However I will be using this in a roaster for a viewport and the stuff is tinted amber like, or a rose tint. Only thing not at that high temp is about $150, and is a type of quartz. Believe it or not I will be trying isinglass (mica), made for the older woodstoves. It comes in clear, and is supposed to be pretty tough (but thin). I will see. I will be putting a stainless screen on the inside face of it to provide more durability. The stuff is good to 1800 degrees F.
Posted Thu Jul 17, 2008, 5:04pm Subject: Re: Need Very High Temp Heat Resistant Glass
Glass doors on ovens are Low E glass and come tinted. I got a hi temp glass disc from a local boiler manufacturer, not sure the max temp rating but it is plenty hot enough. Diameter is 40mm thickness, i think it is 6mm thick, will confirm that when i find it to measure it. They are (were) $40NZ. You can't get the glass cut after it is heat treated, it is too hard. It must be cut prior to heat treatment which can be a problem if it is too small to fit on the grate spacings of the heat treatment oven.
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