The Purpose of PE Film Bag Sealing Tape
Buying, Uses, and Finding Sources
Overview
Polyethylene (PE) film bag sealing tape is an important part of the packaging process within the industry, agriculture, and shipping. PE film bag sealing tape is great because it is moisture proof, durable, and inexpensive, making it great for bulk packaging. When it comes to procurement sealing tape, the factors of material, adhesive strength, widths and thicknesses, and industry standards must be evaluated.
Technical Details and Differences in Materials
Core Material Characteristics
PE sealing tape is made from low-density polyethylene (LDPE) and linear low-density polyethylene (LLDPE) with differences in thickness, type of adhesion, and UV sensitivity.
What the buyer should consider:
- For inner use, LDPE is more cost-friendly.
- For outer use, LLDPE is more cost-friendly as it is tear resistant and is good for heavy-duty bags.
- For extreme temperatures, the reinforced PE (backed with fiberglass) is the best.
Adhesive Types and Their Effects
|
Adhesive Type |
Peel Strength (N/25mm) |
Most Appropriate |
Adverse Effects |
|
Acrylic |
6–10 |
Food Grade Packaging |
Low Initial Tack |
|
Hot Melt |
8–12 |
Rapid Sealing |
Low Heat Resistance |
|
Logistics |
8–12 |
Rapid Sealing |
Low Heat Resistance |
|
Rubber-Based |
10–15 HDR |
Heavy-duty industrial bags |
Possible residue |
Key Certification Checkpoints:
- FDA Compliance (for food contact)
- REACH/RoHS (toxicological safety)
- ISO 9001 (quality of the manufacturing process)
Industrial Applications & Buyer Pain Points
Sector-Specific Use Cases
Food Packaging
FDA-approved acrylic adhesive tapes are mandatory to mitigate the risk of food contamination.
Chemical Storage
Requires the use of LLDPE tape with rubber-based adhesive that has a high resistance to various chemicals.
Agricultural Silos
Use UV stabilized reinforced tape to prevent degradation from the sun.
Adhesive Failure in Cold Storage
Solution: Use low-temperature-grade hot-melt adhesives.
Tape Splitting During Application
Choose thicker (≥ 0.1mm) LLDPE tape.
Supplier Inconsistency
Complete Supplier Audits (ISO 9001 + Batch Testing).
Supplier Evaluation & Cost Optimization
Supplier Selection Criteria
|
Factor |
High-Priority Metrics |
Confirmation Method |
|
Quality Assurance |
ISO 9001, SGS batch testing |
Obtain it from a third-party testing laboratory |
|
Lead Time |
≤ 14 days for bulk orders (20+ pallets) |
Assess global supply chain partnerships |
|
Pricing |
$0.02–$0.08 per meter |
Analyze FOB vs. CIF terms |
|
Customization |
Width (20mm–100mm), logo printing |
Assess with localized OEM partners |
Cost-Saving
Some customers may qualify for 15–20% discounts for orders with > 10,000 rolls in bulk (i.e. roll size does not matter so long as the total number of rolls exceeds 10,000).
Alternative Materials: For applications that are not critical, other tapes, such as BOPP tape, can save 30%.
Q&A: Addressing Common Procurement Questions