500°F / 260°C Continuous Exposure: Higher Intermittent Removable Insulation Blanket If wear and exposures are part of the problem, we can custom design Removable Insulation Blanket covers to handle the harshest conditions. Heat insulation alone may not be your solution. Requirements for thermal performance are often accompanied by the need to solve issues of abrasion, oil, moisture, vibration and flexibility. Our solutions combine the physical and thermal properties of 17 oz or 32 oz fire blanket and fiberglass / silica / ceramic internal insulation to create custom removable insulation covers for the most hazardous and severe environments.