Heat Resistance

Heat resistance describes the ability of a label or marking material to withstand high temperatures without deforming, discoloring, or losing adhesion. In industries such as automotive, aerospace, electronics, and metal processing, heat-resistant labels are essential because they are often exposed to temperatures exceeding 300 °C. Materials such as polyimide (PI), heat-resistant polyester (PET), or special aluminum foils offer high thermal stability. Thermal transfer printing with resin ribbon or laser engraving ensures permanent marking that does not fade due to heat exposure. Especially in soldering processes, oven applications, or engine marking, both the label material and the adhesive must withstand extreme temperatures. Silicone or high-temperature acrylic adhesives ensure reliable adhesion when exposed to heat. Standards such as UL 969 or BS 5609 provide information about the heat resistance of labels in demanding environments. Choosing the right material ensures that labels remain functional and legible even under intense thermal stress.