Operating range from -20° – +160°C. Silicone fluids are non-toxic and compatible with many materials. Do not use with silicone tubing! Refer to product datasheet and SDS for additional information. At higher temperatures (~150°C) silicone fluids will ‘smoke’ – this is a normal property of silicone fluids and will not pose a danger. We recommend monitoring fluid health on a regular basis when operating the fluid near the upper temperature limit on a regular basis. Fluid should be changed regularly to circumvent thickening or polymerization. Dispose according to local, state and federal waste guidelines.