RFA-7631 NBR Latex: Ruico’s Specialized Material for High-Efficiency Fabric-Supported Industrial Nitrile Gloves

Issued by Zhejiang Ruico Advanced Materials

Fabric-lined nitrile coated gloves occupy a vital position in industrial protection, widely applied in metal processing, automobile maintenance, construction, logistics and machinery assembly. End customers demand gloves that combine wear resistance, oil resistance and flexible operation, while manufacturers pursue stable continuous production, low material loss and controllable comprehensive costs. To solve widespread production pain points in the industry, Zhejiang Ruico Advanced Materials independently developed RFA-7631 medium-acrylonitrile carboxylated NBR latex, purpose-built for fabric-supported glove dipping lines.

Traditional general-purpose NBR latex brings multiple challenges during fabric coating. Some latex exhibits slow gelation after dipping, causing severe dripping, uneven coating thickness and heavy raw material waste. Some formulations easily generate massive coagulum under continuous high-speed operation, forcing frequent production shutdowns to clean dipping tanks. Many finished industrial gloves suffer from two common defects: overly stiff rubber layers that restrict finger movement, or soft films with insufficient abrasion resistance and short service life. Ruico’s R&D team optimized molecular structure and colloidal properties to tackle these long-standing bottlenecks.

RFA-7631 is a milky-white carboxylated butadiene-acrylonitrile copolymer emulsion with tightly controlled core technical indicators. Its solid content is stabilized at 45.0±1 wt%, pH ranges from 8.0 to 9.0, and viscosity remains below 100 cps under standard testing conditions. These parameters guarantee smooth circulation inside dipping tanks, excellent compatibility with foaming agents, pigments and vulcanizing agents, and avoid repeated pH adjustment during compounding. The latex features rapid surface gelation once contacting fabric liners, significantly reducing dripping loss and stabilizing coating weight. It also demonstrates superior foaming performance, enabling manufacturers to produce lightweight foam-coated gloves with fewer foaming additives to improve air permeability for long-shift workers.

In terms of finished glove performance, the medium-acrylonitrile design achieves a balanced performance matrix. Carboxyl functional groups strengthen crosslink density after vulcanization, greatly improving surface abrasion resistance. Gloves coated with RFA-7631 withstand repeated friction against metal workpieces, rough concrete and sharp components, extending service life and reducing regular procurement costs for industrial clients. Optimized flexible polymer segments ensure the gloves remain supple, preserving full finger mobility and precise gripping control during equipment operation and component assembly. As a fully synthetic material free of natural rubber proteins, it removes Type I latex allergy risks and helps manufacturers satisfy strict occupational health standards required by large corporate buyers. In oily working environments, the material delivers prominent barrier performance against grease, motor oil and mild industrial detergents, outperforming natural rubber coated alternatives.

Beyond high-quality raw materials, Zhejiang Ruico Advanced Materials offers systematic technical service. Our engineers assist customers in adjusting compound recipes, dipping parameters and vulcanization processes. We supply standardized IBC tank and flexitank bulk packaging, with complete storage and transportation guidelines to guarantee latex stability throughout the supply chain.

As global industrial safety standards keep tightening, fabric-supported nitrile gloves face rising requirements for durability, comfort and environmental performance. Zhejiang Ruico Advanced Materials will continue to iterate NBR latex technology, develop low-residue, low-carbon formulation systems, and cooperate with glove manufacturers to drive the upgrading of the industrial protective glove industry, achieving a win-win situation for production efficiency, product quality and sustainable development.