NINGBO INNO PHARMCHEM CO.,LTD. is proud to present its premium product, WS Curing Resin. This specialized resin serves as a highly effective curing agent, playing a critical role in the rubber industry. As a thermoplastic p-t-octyl phenol-formaldehyde reactive resin, WS Curing Resin offers distinctive properties essential for achieving desired performance characteristics in various rubber compounds.

The product is supplied in a yellow to brown transparent flaky solid form, easily manageable for industrial applications. Its physical appearance is consistent with its chemical nature, designed for efficient dispersion and reaction within rubber matrices. The quality of the raw material is a paramount concern for NINGBO INNO PHARMCHEM CO.,LTD., ensuring that the product delivered meets stringent standards from the initial monomers through to the final refined resin.

WS Curing Resin is primarily recognized for its efficacy as a curing agent for Natural Rubber (NR) and several types of Synthetic Rubber (SR), including Isobutylene Isoprene Rubber (IIR), Ethylene Propylene Diene Monomer (EPDM), Nitrile Butadiene Rubber (NBR), and Chloroprene Rubber (CR). The curing process, also known as vulcanization, is fundamental to transforming raw, pliable rubber into a durable, elastic material with enhanced mechanical properties, heat resistance, and longevity.

When using WS Curing Resin for curing, especially when it is the sole curing agent, it is typically necessary to incorporate specific catalysts. For instance, when curing CR, catalysts are generally recommended at a concentration of 5-8% relative to the rubber content. Similarly, Tin(II) Chloride (SnCl2) is often used as a catalyst at 2-5% relative to the rubber. The reference usage level of WS Curing Resin itself varies depending on the specific rubber type and desired outcome. For IIR, a typical usage is 7-12% of the rubber content, while for EPDM, a lower concentration of 1.5-2% of the rubber is commonly employed. These recommended levels are guidelines, and specific formulations may require optimization based on process conditions and performance requirements.

Key technical specifications for WS Curing Resin are carefully controlled during manufacturing. The Softening Point, measured by the Ring and Ball method, ranges from 85ºC to 95ºC. The Water Content is maintained at a low level, guaranteed to be no more than 1.0%. The Methylol content, a critical indicator of reactivity, falls within the range of 8% to 12%. These parameters are crucial for ensuring consistent curing performance and predictable behavior during processing.

Packaging is standardized for ease of handling and storage. WS Curing Resin is supplied in 25kg net weight bags, typically kraft bags with an inner PE coating to protect the product from moisture and environmental factors. Proper storage conditions are essential to maintain product quality and extend its shelf life. The resin should be kept indoors in a dry and well-ventilating area. It must be protected from heat sources and fire. Under these recommended storage conditions, the storage life is typically one year from the date of manufacturing.

The manufacturing process at NINGBO INNO PHARMCHEM CO.,LTD. adheres to strict quality control protocols. The commitment to producing high-quality materials begins with the selection of superior raw materials and extends through every stage of production, from synthesizing the monomers to the final processing of the resin. This vertically integrated approach helps ensure consistency, purity, and performance batch after batch. The finished product is classified as non-hazardous chemical, prioritizing safety in handling and application.

Quality assurance is further supported by a warranty period. Most items, including WS Curing Resin, are warranted within 2 years from the date of manufacturing, provided they are stored unopened in a cool (below 26°C), dark, and dry place. To facilitate evaluation and testing, NINGBO INNO PHARMCHEM CO.,LTD. offers free samples of WS Curing Resin. Customers are typically requested to cover only the freight cost, and samples can usually be dispatched within 3-5 working days. Express shipping accounts can be utilized for convenience.

Customization options are also available for specific customer needs. For instance, using custom labels with a customer's own logo or brand is possible, subject to meeting a minimum order quantity (MOQ) for customized production. Furthermore, for customers who prefer to handle packaging locally, purchasing in bulk packs for subsequent repacking in their own facility is fully accepted and supported.

The robust performance and versatility of WS Curing Resin make it an indispensable component in the manufacturing of various rubber products. Its ability to effectively cure NR, IIR, EPDM, NBR, and CR contributes to the production of items requiring enhanced physical properties, such as hoses, belts, seals, technical molded goods, and tire components. The choice of curing agent significantly impacts the final properties of the vulcanized rubber, and WS Curing Resin is designed to impart desirable characteristics critical for demanding applications.

Choosing a reliable manufacturer and supplier of high-quality curing resins is crucial for ensuring consistent production results and product performance. NINGBO INNO PHARMCHEM CO.,LTD. is committed to being that trusted partner. For inquiries regarding the price of WS Curing Resin or details on how to buy or purchase this essential rubber additive in bulk quantities, please contact NINGBO INNO PHARMCHEM CO.,LTD. directly. We are ready to provide detailed information, support your application needs, and discuss potential partnerships. Our aim is to supply the high-performance materials that drive success in the global rubber industry.