Water-based Silicone Release Coating On PET Film For Textile Heat Transfer Printing(DTF)

The water-based silicone release coating with solvent resistance for DTF is a high-performance functional coating primarily composed of polydimethylsiloxane and its modified derivatives, combined with emulsifiers and other additives through advanced emulsification processes. As a critical auxiliary material for DTF printing and molding processes, it forms a uniform, crosslinked non-stick surface on various substrates, characterized by extremely low surface energy and strong chemical inertness. Unlike solvent-based alternatives, this water-based formulation significantly reduces volatile organic compound emissions, aligning with global demands for environmental sustainability and safety. Its core function lies in providing reliable release performance while maintaining exceptional resistance to solvents, making it an indispensable material in modern DTF manufacturing workflows.



Product Overview

This water-based silicone release coating integrates the environmental advantages of water-based systems with the superior performance of silicone materials, specifically optimized for DTF applications. It is designed to be applied at low coat weights onto substrates through techniques like spraying or roller coating. The product features a stable molecular structure with Si-O-Si bonds as the framework, ensuring consistent performance across different environmental conditions. It bridges the gap between functional requirements and sustainability goals, supporting high-efficiency and precision manufacturing in diverse industries.

 
Water-based Silicone Release Coating

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Key Features

  • Excellent Solvent Resistance: Possesses strong chemical inertness to withstand exposure to common solvents in DTF printing processes, ensuring coating integrity and long-term performance.
  • Environmentally Friendly : Water-based formulation with low VOC emissions, non-toxic, non-flammable, and safe to handle, complying with strict environmental and safety standards.
  • Stable Molecular Structure : Composed of PDMS derivatives, offering superior physical and chemical stability, resistance to moisture, and odor barrier properties.
  • Uniform Coating Formation : Enables smooth and consistent film formation on substrates, ensuring reliable release performance and high gloss.
  • Good Adhesion & Durability : Exhibits strong anchorage to substrates, with excellent wear resistance and long bath life for industrial production.
  • Customizable Release Levels : Supports easy, medium, or tight release force adjustments to meet specific DTF application requirements.

 

Parameter Typical Value Unit Notes
Viscosity (25°C, Brookfield RV) <2500 mPa·s Spindle 3, 20 rpm
Soild Content  25±2 % /
pH Value 4.0 - 6.0 /
Shelf Life 12 months Stored in sealed containers at 5–30°C
Storage Cool, dry place Avoid direct sunlight and moisture

 

 

Applications

1. DTF Printing Release Liners
The most direct and critical application is in the production of DTF printing release liners. The coating’s solvent resistance ensures it remains intact when in contact with inks, adhesives, and cleaning solvents used in DTF printing. It provides a smooth non-stick surface that allows the printed film to be easily transferred onto target materials without adhesion or damage. This application benefits from the coating’s uniform release performance, high gloss, and moisture barrier properties, ensuring print quality and transfer efficiency.
2. Precision Electronics Manufacturing
In the electronics industry, the coating is used for release liners in the production of adhesive components. Its solvent resistance protects against harsh cleaning agents and chemical treatments during electronics assembly, while the low VOC and non-toxic properties meet the strict environmental requirements of electronic manufacturing. The stable molecular structure and temperature resistance ensure reliability in high-precision, high-temperature processing environments.
3. Medical Device Production
For medical devices requiring sterile and safe materials, this water-based coating is ideal for release liners in medical adhesives, wound dressings, and disposable medical products. Its non-toxic, environmentally friendly formulation complies with medical-grade standards, while solvent resistance prevents degradation from disinfectants and medical solvents. The odor and moisture barrier functions also help maintain the sterility and shelf life of medical products.
4. Packaging Industry
In food and industrial packaging, the coating is applied to packaging materials such as release papers and films. For food packaging, it meets food-grade safety requirements and provides a barrier against moisture and odors, extending product freshness. In industrial packaging, its solvent resistance and wear resistance make it suitable for packaging adhesive tapes, composite materials, and other products that require easy release and protection from chemical exposure.
5. Automotive and Composite Materials
In the automotive industry, the coating is used for release agents in the molding of rubber and plastic components. Its solvent resistance withstands the chemical additives in rubber and plastic formulations, while the efficient release performance speeds up production cycles. For composite materials, the coating’s stable crosslinked structure and high-temperature resistance support the curing process, ensuring precise shape retention and easy demolding.
6. Label and Tape Manufacturing
For pressure-sensitive labels and industrial tapes used in diverse environments, the coating provides customizable release levels to match different adhesive types. Its solvent resistance ensures the release liner remains functional even when exposed to printing inks, solvents, or outdoor elements. The good stiffness and wear resistance of the coated substrates also enhance the durability and handling of labels and tapes during application.

Benefits

 
Enhances Production Efficiency: The efficient release performance reduces product adhesion and damage, speeding up production cycles and improving line speeds.​
Reduces Environmental Impact: As a water-based formulation with low VOC emissions, it minimizes environmental pollution and complies with global sustainability standards, reducing the need for expensive emission control systems.​
Improves Product Quality: The uniform coating formation ensures consistent release force and high gloss, reducing product defects and enhancing the surface finish of final products.​
Extends Tool and Substrate Life: The coating forms a protective barrier that reduces wear and corrosion on molds and substrates, extending their service life and lowering replacement costs.​
Ensures Safety and Compliance: Non-toxic, non-flammable, and meeting food-grade and medical-grade standards in relevant applications, it ensures user safety and regulatory compliance.​
Offers Versatility and Cost-Effectiveness: Suitable for multiple substrates and industries, with customizable properties that eliminate the need for multiple specialized coatings. The water-based formulation also reduces handling and storage costs compared to solvent-based alternatives.

 


Product Tags Silicone Release Coating          Digital Transfer Printing          DTF release coating          PET release coating          Heat transfer coating          Direct Transfer Film         

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