In the fields of coatings, inks, adhesives and nail polish, moisture-resistant thiol-based hardeners are becoming the core technology to improve material performance. This type of hardener has a unique chemical reactivity and resistance to environmental interference, especially in humid or variable temperature conditions. The Thiol-30L product launched by Shenzhen U-Sunny is redefining industry standards through a two-stage distillation process and low-odor design.
1. Characteristics and core advantages of thiol-based curing agents
The core competitiveness of thiol-based curing agents lies in their low-temperature rapid curing ability and moisture resistance. For example, Thiol-30L can still achieve rapid curing (applicable period 2-10 minutes) through tertiary amine catalysis in a low-temperature environment of 0°C to -10°C, and the cured material has low shrinkage and strong adhesion, and is suitable for a variety of substrates such as metal, wood, and plastic. Studies have shown that thiol groups (-SH) can react with oxygen-inhibited free radicals in epoxy resins, significantly improving the efficiency of photocuring systems, especially under low-energy ultraviolet conditions.
In terms of chemical stability, the cross-linked network formed by thiol-based curing agents is acid- and alkali-resistant (weight loss <4% after 28 days of immersion) and high-temperature resistant (thermal decomposition temperature >200°C), making it suitable for harsh environments such as automotive coatings and electronic packaging
2. Application scenarios of Thiol-30L in multiple fields
Coatings and inks: Thiol-30L optimizes the oxygen inhibition effect to achieve uniform curing of water-based UV coatings on wet substrates and improve the wear resistance and weather resistance of the coating. For example, in marine engineering anti-corrosion coatings, its salt spray resistance can exceed 1,000 hours.
Adhesives and sealants: As a low-temperature fast curing agent, Thiol-30L significantly shortens the production cycle in electronic component bonding and building sealants while maintaining high bonding strength (tensile shear strength>20 MPa).
Nail polish innovation: U-Sunny's Thiol-30L combined with UV moisture dual curing technology solves the problem of incomplete curing of dark nail polish due to low light transmittance, ensuring that the nail polish is further cured after contact with water, improving durability.
3. Market trends and competitive advantages of Thiol-30L
The global polythiol curing agent market is expected to expand at a compound annual growth rate of 7.1% and reach US$230 million in 2031. Driving factors include:
Environmental regulations drive: Traditional amine curing agents are restricted due to VOCs emissions, while Thiol-30L's low toxicity and low odor characteristics meet EU REACH and other standards.
High-tech industry demand: The demand for high-performance packaging materials in 5G equipment and new energy vehicles has surged, and Thiol-30L's moisture and heat resistance and rapid curing ability have become key.
Compared with similar products, Thiol-30L reduces the odor to less than 30% of conventional PEMP thiol through a secondary distillation process, while maintaining high reactivity (thiol equivalent 130-280), making it more competitive in the fields of electronic manufacturing and optical materials.
Moisture-resistant mercaptan-based curing agents are reshaping the performance boundaries of chemical materials, and Shenzhen U-Sunny's Thiol-30L has become an industry benchmark with its technological innovation and environmental advantages. Whether it is to cope with the challenges of humid environments or to meet the needs of high-end manufacturing, Thiol-30L provides reliable solutions for the fields of coatings, adhesives and nail polish. Contact the U-Sunny team now to get exclusive technical solutions and sample support!