1.The temperature resistance range of plastic products: heat resistance refers to the resistance of plastic products to ambient temperature during processing and use. A good plastic pallet will not have obvious color changes and performance changes within the applicable temperature range. Some plastic products may not be suitable for use in high temperature or freezing environments. 2. the colorant of plastic products: the colorant used in plastic products, during processing and production, high temperature will make it decompose and change. When mixing the ingredients, they must be evenly mixed without impurities. Such high temperature processing will change the color of the plastic pallet. 
3. Light resistance of plastic products: general light resistance refers to the resistance to sun exposure. In this environment, there is also the problem of oxidation. Therefore, the plastic pallet and its additives have better resistance to ultraviolet rays and oxidation, so that the service life of the pallet can be longer. 4. Acid and alkali resistance of plastic products: The acid and alkali resistance of colored plastic products is different. Some plastics may fade when exposed to chemicals or acid and alkali corrosion, and even affect their performance. Different materials have different resistance to acid and alkali. Plastic products such as plastic pallets must be tested for chemical resistance and materials.