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How to Choose the Right Hot Melt Adhesive Films for Different Substrates? A Comparison of Bonding Strength and Temperature Resistance
The bonding performance of Hot Melt Adhesive Films depends on substrate characteristics, bonding strength, temperature resistance, and other factors. As a professional manufacturer, Anhui Haita New Material Technology Co., LTD, with over 20 years of industry experience, provides customized solutions to help customers optimize their bonding processes. Below are the key selection factors:
1. Substrate Compatibility
Different materials (such as plastics, metals, textiles, and composites) have varying surface energy, roughness, and chemical properties, requiring specific adhesive films:
- Low surface energy substrates (PP, PE, etc.): Require high-polarity or corona-treated films for better adhesion.
- Porous materials (non-woven fabrics, wood): EVA or TPU-based films with strong permeability ensure deep bonding.
- Metal/glass: High-temperature-resistant PA or PES films prevent thermal detachment.
Anhui Haita offers substrate-specific solutions, leveraging its in-house R&D lab to adjust film formulations based on customer requirements.
2. Bonding Strength Requirements
- Low-strength applications (packaging, temporary bonding): Cost-effective EVA films for light loads.
- Medium-to-high strength (automotive interiors, footwear): TPU or PA films provide flexibility and durability.
- Ultra-high strength (electronics, structural bonding): Modified polyolefin or composite films ensure peel and shear resistance.
The company operates hot melt coating lines and high-precision slitting machines, producing films with precise grammage (10-200g/m²) for controlled bonding strength.
3. Temperature Resistance Comparison
- Low-temperature environments (-30°C to 60°C): Flexible EVA or PO-based films for cold storage packaging.
- Medium-to-high temperatures (80°C to 150°C): TPU or PA films for automotive and electronics.
- Extreme heat (>150°C): PES or specialty-modified films for aerospace applications.
Anhui Haita's central material control system and reactors fine-tune thermal stability, while its ERP system ensures batch consistency.
4. Eco-Friendliness and Process Adaptability
- For RoHS/REACH compliance, the company offers water-soluble films and bio-based adhesives.
- For automated production, fast-curing or low-melting-point films improve efficiency.
5. Customization Support
As a China OEM/ODM Hot Melt Adhesive Films Factory, Anhui Haita provides:
- Daily production capacity of 500,000 m² for large-scale orders.
- Annual raw material consumption of 5,000+ tons, ensuring supply chain stability.
- Smart workshops and a self-developed ERP system for traceable manufacturing.
By analyzing substrate properties, strength needs, and temperature ranges, Anhui Haita delivers end-to-end bonding solutions, supporting global industries in material optimization.
Expansion of Hot Melt Adhesive Films in Medical Protection Applications
With the increasing global awareness of medical health and frequent public health emergencies, the medical protective equipment market continues to grow its demand for high-performance adhesive materials. As a professional supplier of medical-grade hot melt adhesive films, Anhui Haita New Material Technology Co., LTD leverages 20 years of R&D experience in polymer materials to provide innovative bonding solutions for the medical protection industry.
I. Special Requirements for Hot Melt Adhesive Films in Medical Protection
- Biocompatibility: Must pass ISO 10993 biocompatibility testing
- Sterilization adaptability: Resistant to ethylene oxide, gamma radiation and other sterilization methods
- Balance of breathability and sealing: Protective clothing requires both protection performance and wearing comfort
- Environmental safety: Complies with FDA, REACH and other international certification standards
II. Anhui Haita's Solutions for Medical Protection
As a leading OEM/ODM hot melt adhesive film manufacturer in China, the company has developed a series of specialized products for the medical field:
- Medical protective clothing TPU adhesive film
- Certified by ISO 13485 Medical Device Quality Management System
- Moisture permeability >5000g/m²/24h, balancing protection and comfort
- Produced with central material control system to ensure batch stability
- Biodegradable mask ear strap adhesive film
- Produced on water-soluble non-woven production line
- Biodegradation rate >90% (180 days)
- Daily production capacity of 500,000 square meters to meet emergency needs
- Medical packaging sealing adhesive film
- Low temperature activation (70-90℃) to avoid damaging sensitive medical devices
- Adjustable peel strength range of 2-15N/cm
- Various width specifications available through high-precision slitting machines
III. Quality Assurance Through Intelligent Manufacturing
The company's intelligent factory built with total investment exceeding 50 million yuan supports medical-grade products:
- Class 10,000 clean room: Meets medical product production environment requirements
- Self-developed ERP system: Enables raw material traceability and full-process monitoring of process parameters
- Customized production with reactors: Adjustable melt index of films (5-50g/10min)
- Environmental protection equipment: VOC emissions far below national standards
IV. Rapid Response to Global Medical Needs
With:
- Annual raw material processing capacity of 5,000 tons
- Dual production lines for both water-soluble films and traditional hot melt adhesive films
- Rapid prototyping capability (72-hour sampling) from in-house R&D lab
Anhui Haita has provided customized products complying with local regulations to medical customers in Europe, America, Southeast Asia and other regions, supplying materials for over 200 million protective products during the COVID-19 pandemic.
