PES Hot Melt Mesh, also categorized as a co-polyester adhesive web, is a high-performance bonding medium utilized in the lamination of multi-layered industrial filtration systems. Engineered with a melting range of 120°C to 130°C, this PES Mesh Film facilitates the structural integration of non-woven, glass fiber, and synthetic membranes without the use of liquid resins. Its randomized fibrous architecture ensures that the composite maintains high porosity and low pressure drop (ΔP), while its crystalline structure provides the necessary thermal and chemical resistance required for high-efficiency particulate air (HEPA) and liquid filtration environments.
Technical Performance and Structural Integrity
In Industrial filtration, the adhesive layer must function as a structural lattice. PES (Polyester) is preferred over PA (Polyamide) in these applications due to its superior dimensional stability and lower moisture absorption rate (<0.5%).
Direct factory supply of PES adhesive webs for high-performance filtration composites.
Request Technical TDS & Bulk Quote
Technical Data: PES Hot Melt Mesh for Filtration
The following table details the mechanical benchmarks for PES PES Mesh Film across standard filtration grades:
| Parameter | Filtration Grade A (Light) | Filtration Grade B (Medium) | Filtration Grade C (Heavy) |
| Weight (gsm) | 12g/㎡ – 20g/㎡ | 25g/㎡ – 40g/㎡ | 50g/㎡ – 80g/㎡ |
| Melting Point | 120°C – 125°C | 125°C – 130°C | 125°C – 130°C |
| Tensile Strength (N/5cm) | ≥ 15N | ≥ 35N | ≥ 60N |
| Air Permeability | > 1200 mm/s | > 850 mm/s | > 500 mm/s |
| Washing/Steam Res. | Excellent | Superior | Superior |
| Polymer Base | Co-Polyester (PES) | Co-Polyester (PES) | Co-Polyester (PES) |
Core Engineering Advantages
1. High Thermal and Chemical Resistance
Industrial filters often operate in environments with continuous service temperatures of 80°C to 100°C. PES Hot Melt Mesh maintains its tensile strength and bonding integrity under these conditions. Furthermore, PES exhibits high resistance to organic solvents, oils, and dilute acids, preventing delamination in liquid filtration units.
2. Optimized Pore Retention
Unlike solid bonding films, the web structure of PES mesh ensures that the effective filtration area (EFA) is not compromised. During hot-press bonding, the molten filaments encapsulate the surface fibers of the filter media, creating a mechanical lock while leaving the macro-pores open for fluid or gas passage.
3. Structural Support for Pleated Media
In pleated filter designs, the adhesive web acts as a reinforcement agent. By laminating the filter membrane to a support mesh using PES webs, the pleats maintain their geometry under high flow velocities, preventing pleat collapse and maintaining a consistent dust-holding capacity (DHC).
Process Calibration for Filtration Composites
To ensure zero bypass and maximum bond longevity, the following parameters are recommended:
Lamination Temperature: 135°C – 150°C (Surface interface temperature).
Nip Pressure: 2.0 – 4.5 bar, depending on the loft of the non-woven media.
Line Speed: 15 – 40 m/min for continuous rotary press systems.
FAQ
Q1: What is the MOQ for PES Hot Melt Mesh in widths exceeding 2000mm?
For industrial filtration wide-width requirements (up to 3200mm), the MOQ is 5,000 square meters. Standard widths of 1000mm-1500mm are available with an MOQ of 1,000 square meters per specification.
Q2: Does your PES mesh comply with Oeko-Tex or FDA standards for food-grade filtration?
Our PES webs are Oeko-Tex Standard 100 certified. For food or pharmaceutical-grade filtration, we provide specific PES grades that comply with FDA 21 CFR 175.105 requirements for indirect food contact.
Q3: How does PES mesh handle high-pressure hydraulic filtration?
PES is ideal for hydraulic applications due to its high crystalline melting point and resistance to petroleum-based fluids. It provides a peel strength of 25-40 N/cm, ensuring the filter layers do not separate under pressure surges.
