Guangdong Yrbest High Polymer Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of high reactivity shoe additive in China. Welcome to buy durable high reactivity shoe additive at competitive price from our factory. If you have any enquiry about quotation and free sample, please feel free to email us.
Product Introduction
In the highly competitive footwear manufacturing industry, performance and appearance directly determine how far and how steadily you can go. High-reactivity shoe additive F309 is a liquid, polyfunctional isocyanate crosslinker specifically designed to enhance the high performance of adhesives and optimize the overall effectiveness of primer systems. F309 reacts quickly, effectively shortening production cycles and improving manufacturing efficiency, helping manufacturers meet their production goals more easily.
Compared with F306, the biggest advantage of F309 is its outstanding yellowing resistance. If you're working with white, light-colored, or transparent shoe materials and have strict requirements for long-term appearance retention, then high-reactivity shoe additive F309 is definitely the top choice. With this industrial-grade high peel strength hardener, you don't need to worry about yellowing caused by prolonged sun exposure or environmental aging-it keeps the light-colored appearance of finished footwear intact over the long term.
In terms of compatibility, F309 is well-designed to work with a variety of shoe adhesive systems, including polyurethane-based and some solvent-based adhesives, making it a universal adhesive hardener. It is also a key component in surface primers and specialty treatments, easily tackling difficult-to-bond substrates such as certain thermoplastics, aged rubber, and coated materials. Additionally, F309 significantly improves the hydrolysis resistance and peel strength of the adhesive layer, while offering good heat resistance and resistance to plasticizer migration-directly enhancing the durability of finished footwear.
High-reactivity shoe additive F309 is mainly used in high-performance athletic shoes, premium fashion footwear, and specialty work boots-products that demand high quality. As a core crosslinker in fast-curing adhesive systems, it strikes a strong balance between processing efficiency, initial adhesion, and color stability. It ensures strong bonds while maintaining surface quality-for high-value footwear applications, this hardener comes highly recommended.
Product Parameter
|
Product Model |
F309 |
|
Appearance |
Colorless transparent liquid |
|
Usable time after reaction (23C) |
4-6 hours |
|
Storage Period (5~35°C) |
6 months |
Product Feature and Application
Product Features:
Compatible with a wide range of adhesives
Good initial bonding strength
Improved heat resistance
Enhanced chemical and solvent resistance of adhesives
Available in various packaging specifications
High solid content
High performance.
Industrial Adhesives for:
Footwear Industry
Automotive Industry
Packaging Industry
Processing Procedur:
Clean and dry the materials.
Roughen the surface if necessary.
Apply a thin coat of adhesive.
Allow 30 minutes for drying and solvent evaporation.
Heat to activate the surface.
Align and shape, then press together for 12 seconds.
The bond begins to stabilize about one minute after assembly.
Precautions
Conduct a prior test before full-scale application.
Keep this chemical product away from children, fire, and moisture.
Store in a cool and dry place (5-35°C).
For more information, please read Material Safety Data Sheet.
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