When Hot-Gunning Refractory Is a Better Option Than a Cold Cleaning Patch As a full service refractory contractor who prides ourselves in doing the job right, we always strive to create the best cost-effective long-term solution when it comes to protecting your people, production schedule and heat processing equipment. But sometimes, the realities of your production schedule justify short-term fixes instead of the best “long-term solution. ” On a recent job, our customer had a void in the sidewall of their furnace that went from the molten metal line to the roof. The “best” repair would have been to perform a cold cleaning patch. Production was at peak capacity so downtime would have cost them at least 5 days of production loss by bringing the furnace down, draining it, repairing the furna

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