This lightweight, soft insulating fire brick is great for soldering applications. Measures 9 x 4.5 x 2.5 inches, Maximum temperature 2300°. May be carved and pinned if needed.
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High Temperature Insulation: Insulating firebricks are rated up to temperature of 2500F, 0.75 Inch x 4.5 Inch x 9 Inch Low thermal conductivity, Low
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