There are a few crucial variables to consider while purchasing PVC plastic strips. 

First, you must choose which sort of PVC plastic strip you want. PVC plastic strips are available in a range of forms and sizes, including flat, round, and U-shaped strips. Furthermore, certain strips are intended for specialized purposes such as electrical insulation, soundproofing, and weatherproofing. 

Second, assess the thickness of the strip. Thicker strips are more resistant to pressure and wear. They may, however, be more costly and harder to deal with. Thinner strips are normally less expensive, although they may be less durable. 

Third, evaluate the chemical resistance of the strip. Most chemicals are resistant to PVC plastic strips, however some may be more resistant than others. This is crucial for applications that need chemical resistance. Fourth, think about the strip's adaptability. Some strips are more flexible than others, which is useful in some applications. 

Finally, evaluate the color of the strip. PVC plastic strips are available in a number of colors, allowing you to fit the aesthetic of your project. 

By taking these criteria into account, you can ensure that you select the ideal PVC plastic strip for your application.