HIGH TEMPERATURE PAINTS Q. I am looking for a suitable paint which can be applied to the external surface of domestic hot water tanks (mild steel surface). The paint would be subject to flue gas temps of 250°C while the tank surface will be nearer to 80°C. The flue gases are slightly acid with a PH4. A. Carboline Coatings makes a range of high temperature coatings for the maintenance coatings industry under the trade name "Thermaline". Go to www.carboline.com. After registering, you can access the information required. 
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