Using a halogen point heater, we locally irradiated expanded polystyrene (EPS) with infrared radiation to observe its thermal response. The irradiated area rapidly reached high temperatures, causing the EPS to melt quickly. This video clearly demonstrates how localized infrared heating affects heat-sensitive materials.

Please check the following site for more information.

Related page:

Precision Melting of Chocolate with Infrared Localized Heating Localized Infrared Heating and Melting of Polyurethane Tube Ends Rapid Vaporization of Candle by Infrared Heating Line-Focused Infrared Heating | Localized Melting of a Tin Plate Infrared Localized Heating for Visualizing Heat Transfer in Graphite Rods Visualization of Heat Transfer in Iron Screws by Localized Infrared Heating Visualization of Heat Transfer in a Ceramic Pipe (Alumina) by Localized Infrared Heating Line-Focused Infrared Heating | Localized Melting of a Zinc Plate