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The Science behind Bopp Tape: Understanding its Strength and Durability

by:Gangyuan      2023-05-12

BOPP tape, also known as biaxially-oriented polypropylene tape, has been a popular packaging material for decades due to its strength, durability and cost-effectiveness. It is a versatile tape that can be used for a variety of applications, from sealing cardboard boxes to securing fragile items during transit. In this article, we will look at the science behind BOPP tape and how it achieves its strength and durability.

What is BOPP tape?

BOPP tape is a type of pressure-sensitive adhesive tape that is made from biaxially oriented polypropylene. This means that the polypropylene molecules are stretched in both the machine direction (MD) and transverse direction (TD), giving the tape its exceptional strength and durability. BOPP tape can be manufactured with a range of properties, including different adhesives, thicknesses, and colors, to suit specific applications.

Understanding BOPP tape adhesives

The adhesive used in BOPP tape is a crucial factor in its performance. There are several types of adhesives that can be used, including rubber-based adhesives, acrylic adhesive, and hot melt adhesives. Rubber-based adhesives are commonly used in low-cost tapes and have good adhesion to a range of surfaces. Acrylic adhesives are more expensive but have superior performance in extreme temperatures and exposure to UV light. Hot melt adhesives are ideal for applications that require high initial tack and quick bonding.

BOPP tape thickness

The thickness of BOPP tape can vary depending on its intended use. Thicker tapes tend to be stronger but may not be suitable for all applications. For example, a tape that is too thick may not easily conform to irregular shapes, making it difficult to use. On the other hand, a thinner tape may not provide enough strength for heavy-duty applications. The most common thicknesses for BOPP tape are between 40 and 60 microns, with thicker tapes up to 90 microns also available for specialized applications.

How BOPP tape achieves its strength and durability

The biaxial orientation of polypropylene in BOPP tape is what gives it its strength and durability. When the polypropylene molecules are stretched in both directions, they become aligned in a way that strengthens the tape. This alignment creates a more uniform material that is less prone to tearing or splitting. BOPP tape can also resist moisture and chemicals, making it suitable for use in harsh environments.

The benefits of using BOPP tape

BOPP tape is a popular choice for packaging materials due to its many benefits. It is cost-effective, versatile, and easy to use. It can be used to seal cardboard boxes, secure fragile items during transit, and even for labeling. BOPP tape can also be custom printed to include logos or instructions, making it an ideal branding tool for businesses.


BOPP tape is a popular packaging material due to its strength, durability, and cost-effectiveness. Its biaxially oriented polypropylene construction makes it strong and resistant to tearing, while its adhesive allows it to stick to a variety of surfaces. Understanding the science behind BOPP tape can help businesses choose the right tape for their specific needs. With a wide range of adhesives, thicknesses, and colors available, BOPP tape is an excellent choice for all kinds of applications.

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