Many factory procurement professionals face a puzzling dilemma: All these nitrile gloves look, feel, and seem to have similar thickness—so why don’t they work when used in Class 100 semiconductor cleanrooms or optical panel production lines? Or why, when switching to a cheaper option—one clearly labeled “powder-free” and “anti-static”—is it immediately rejected during a factory audit? The issue isn’t whether the gloves are “nitrile” or not; rather, it lies in the entire system—from formulation to manufacturing process—that determines whether a nitrile glove is suitable for high-end production lines. While standard industrial gloves and high-end cleanroom gloves may appear similar, they are, in fact, two completely different products.
Formulation Systems: Vast Differences in Impurities at the Source
To reduce costs, mass-produced nitrile gloves typically use a general-purpose industrial latex formulation. To facilitate demolding and processing, this formulation contains silicone oil, as well as high-sulfur, high-chlorine, and high-halogen additives. While these additives pose no issues in standard workshops or assembly stations, they become critical sources of contamination in Class 100 cleanrooms: silicone oil migration can cause pinholes in coatings and poor adhesion; sulfur and chloride ions can slowly corrode precision components; and halogen residues can compromise the reliability of optical surfaces.
In contrast, cleanroom-grade nitrile gloves designed for high-end production lines utilize a pure formulation starting from the raw material stage. Gonals employs a proprietary yellowing-resistant formula with MZ accelerator, featuring a completely silicone-free design. We rigorously screen for low-sulfur, low-chlorine, and low-halogen raw materials, minimizing potential impurity leaching as early as the latex stage. Subsequent processes serve only to further purify the material—not to follow a “contaminate first, clean later” approach.
Process Control: A Difference of Several Times in Dust Emissions
Conventional glove production lines prioritize efficiency, with strictly fixed vulcanization temperatures and times. This results in insufficient cross-linking of the rubber layer, leaving a large amount of unreacted free rubber molecules and loose, floating rubber residue on the surface. When employees rub their gloved hands together, this loose rubber falls off and turns into microparticles, causing the LPC liquid particle count to easily spike to 3,000–8,000 count/cm². High-end cleanroom gloves, on the other hand, optimize the vulcanization cross-linking curve to achieve a denser cross-linked rubber layer, structurally reducing free substances. Combined with a proprietary, easy-to-clean demolding system and multiple stages of deep counter-current rinsing with ultrapure water, this process thoroughly removes surface-adhered particles and vulcanization residues. Gonars’ Class 100 gloves maintain a stable LPC level of ≤1,200 count/cm², which is only a fraction of that of standard models—this is the threshold required for use in high-end production lines.
ESD Implementation Methods: Spray Coating vs. In-Mold Modification
This is a distinction that is most easily overlooked by procurement professionals. Many inexpensive “anti-static gloves” are simply sprayed with an anti-static coating on the surface. When resistance is measured immediately after production, the values do indeed fall within the 10⁶ to 10⁹ Ω range; however, after employees wear the gloves, wipe or rub them a few times, or leave them unused for a while, the coating peels off. Once the coating peels off, not only do the gloves lose their antistatic properties, but the flaking coating itself becomes a new source of particulate contamination. High-end cleanroom gloves utilize a blend-modification process: antistatic components are added during the latex formulation stage and fused into the latex as a single, integrated whole. This ensures that no matter how the gloves are rubbed, stored, or wiped, the antistatic components remain embedded within the material, keeping the resistance value stable at 10⁶–10⁹ Ω over the long term and eliminating the risk of secondary contamination caused by coating peeling. All Gonalus cleanroom gloves utilize this process, fundamentally resolving the hidden risks associated with spray-coated models.
Post time: Oct-27-2026