50mm 500PCS Colorful Round Thermal Labels Core diameter 40mm

Please pay attention to the outer diameter of the product, as an oversized diameter may prevent it from fitting into your machine.

Core diameter: 40mm

Outer diameter: 

Label diameter: 50mm

Sinmark PP (Polypropylene) material has the following characteristics:

1. Lightweight: It has a low density, making it lighter than many other plastics.
2. High Strength: It exhibits good tensile and flexural strength.
3. Chemical Resistance: It has excellent resistance to a wide range of chemicals, including acids, alkalis, and organic solvents.
4. Heat Resistance: It has a high melting point (around 160-170°C), maintaining stable physical properties at high temperatures.
5. Cold Resistance: It retains some toughness at low temperatures, though it may become brittle at extremely low temperatures.
6. Insulating Properties: It has excellent electrical insulating properties, making it suitable for electrical and electronic applications.
7. Transparency: Its transparency can be altered by adjusting processing conditions and additives, typically being translucent or opaque.
8. Fatigue Resistance: It shows good fatigue resistance under repeated bending and stretching.
9. Recyclability: It is environmentally friendly and can be recycled multiple times.

PP material is widely used in packaging, automotive, household appliances, medical devices, and textiles.