Understanding the Differences and Applications of Poly, Steel, and PET Strapping

Strapping is a critical part of securing goods for transport, storage, and handling. Choosing the right type of strapping can protect your products from damage, reduce costs, and improve efficiency. Among the most common strapping materials are Poly strapping, Steel strapping, and PET strapping. Each has unique properties and applications that make it suitable for specific tasks.

This post explores the differences between these three types of strapping, their typical uses, and practical guidance on how to strap effectively with each material.

Steel, PET and Poly strapping rolls

What Is Poly Strapping?

Poly strapping, also known as polypropylene strapping, is a plastic strap made from polypropylene resin. It is lightweight, flexible, and cost-effective. Poly strapping is widely used for bundling lightweight to medium-weight packages and products.

Key Features of Poly Strapping

• Lightweight and flexible: Easy to handle and apply.

• Cost-effective: Lower price compared to steel and PET.

• Good for light to medium loads: Suitable for securing boxes, cartons, and palletized goods.

• Resistant to moisture and corrosion: Does not rust or degrade in wet conditions.

• Limited strength: Not ideal for heavy or sharp-edged loads.

  
  

Common Applications

• Bundling newspapers, magazines, and paper products.

• Securing lightweight boxes and cartons.

• Palletizing goods with moderate weight.

• Temporary strapping where high strength is not critical.

What Is Steel Strapping?

Steel strapping is made from high-tensile steel and is known for its exceptional strength and durability. It is the go-to choice for heavy-duty applications where maximum security is required.

Key Features of Steel Strapping

• High tensile strength: Can withstand heavy loads and rough handling.

• Durable and rigid: Maintains tension over long periods.

• Resistant to sharp edges: Ideal for securing heavy metal coils, bricks, and lumber.

• Corrosion-prone: Requires protective coatings or stainless steel options for outdoor use.

• Heavier and less flexible: Requires specialized tools and safety precautions.

  
  

Common Applications

• Securing steel coils, pipes, and metal products.

• Bundling bricks, concrete blocks, and heavy construction materials.

• Heavy machinery and equipment packaging.

• Applications requiring long-term load retention.

  
  

What Is PET Strapping?

PET (Polyethylene Terephthalate) strapping is a polyester-based strap that combines the strength of steel with the flexibility of plastic. It is gaining popularity as a strong, lightweight, and environmentally friendly alternative to steel.

Key Features of PET Strapping

• High tensile strength: Comparable to steel but lighter.

• Flexible and shock absorbent: Reduces strap breakage during transport.

• UV and corrosion resistant: Suitable for outdoor use without rusting.

• Recyclable: More eco-friendly than steel.

• Requires specific tensioning tools: Not as simple to apply as poly strapping.

  
  

Common Applications

• Securing heavy pallets and large boxes.

• Bundling lumber, bricks, and metal products.

• Export packaging where weight reduction is important.

• Applications needing strong, durable, and corrosion-resistant strapping.

  
  

How to Strap with Poly Strapping

Poly strapping works best with hand tools or semi-automatic machines for small to medium operations. Poly strapping is easy to use, making it popular for many packaging tasks. Here’s a step-by-step guide:

1. Prepare the package: Ensure the load is stable and ready for strapping.

2. Wrap the strap around the package: Position the strap so it fits snugly but not too tight.

3. Use a tensioner tool: Pull the strap tight using a manual tool or battery-powered tensioner.

4. Seal the strap: Apply a metal or plastic seal using a sealer or crimping tool or use self-locking poly strapping (buckels).

5. Cut the excess strap: Use a cutter to trim the strap close to the seal.

6. Check the tension: The strap should hold the load firmly without cutting into the package.

   
   

How to Strap with Steel Strapping

Steel strapping is best for heavy-duty applications and often requires powered tools for efficiency. Steel strapping requires more care and specialized tools due to its rigidity and sharp edges.

1. Wear safety gloves and eye protection: Steel can cause cuts and injuries.

2. Position the steel strap around the load: Make sure it fits tightly.

3. Use a tensioner tool: Tighten the strap firmly to secure the load with the tensioner.

4. Seal the strap: Use metal seals and a sealer or crimping tool to lock the strap in place.

5. Cut the strap: Use a heavy-duty cutter designed for steel.

6. Inspect the strap: Ensure the seal is secure and the strap is tight without damaging the load.

   
   

How to Strap with PET Strapping

PET strapping is ideal for medium to heavy loads where steel strength is needed but weight savings are important. PET strapping combines strength with flexibility but needs the right tools and technique.

1. Prepare the load: Make sure the package is stable.

2. Wrap the PET strap around the load: Position it evenly.

3. Use a tensioner tool designed for PET: Tighten the strap carefully to avoid overstretching.

4. Seal the strap: Use a heat-welding tool or a seal and crimp method depending on the system.

5. Cut the excess strap: Use a cutter suitable for PET.

6. Check the tension: The strap should be tight and secure without damaging the product.

   
   

Choosing the Right Strapping for Your Needs

Selecting the correct strapping depends on several factors:

• Load weight and size: Steel for heavy loads, poly for light loads, PET for medium to heavy.

• Environmental conditions: Use PET or poly for moisture and corrosion resistance.

• Cost considerations: Poly is cheapest, steel is most expensive, PET falls in between.

• Handling and safety: Poly is safest and easiest to handle, steel requires caution.

• Equipment availability: Consider what tools you have or can invest in.