asallway,
High-Temperature Refractory Cement
This high-temperature cement quickly grips surfaces to form permanent smokeproof and gasproof joints. Ground to a paste-like mortar consistency, this ready-to-use cement can be applied with a trowel or spatula and air dried. It won't shrink or crack. Use it for metal-to-masonry and metal-to-metal joint sealing, and for installing and repairing furnaces, stoves, boilers, heaters, and kilns. Temperature range is 50° to 3000° F. Density is 81 lbs./cu. ft.
As you can see from the pictures, the panels overlap the ends and bottom. I used this cement to seal the metal panels to the frames and also seal the panels to each other.
The insulation has a density of 0.5 lbs./cu. ft and a heat flow rate of 0.33 Btu/hr. x in./sq. ft. @75° F. It also has a a temperature range of -40° to +450° F.
I will wait until I get the oven operational and see what type of heat transfer, if any, that I get to the outside panels before I look into adding additional insulation.
Jim
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