Regulators permit these in rinse-off products because they evaporate during drying, leaving minimal residue. Thus, “silicone-free” usually means “no non-volatile silicone like dimethicone”—not zero silicones. For honest labeling, brands should clarify: “Free of non-volatile silicones” or “Contains volatile silicones that rinse away.” Transparency—not omission—builds consumer trust in the cle

New EPA PFAS regulations, effective March 2026, now ensnare unexpected products—including coatings with fluorosilicone additives. While standard PDMS (no C–F bonds) is PFAS-free, fluorinated variants (e.g., trifluoropropyl silicones) likely fall under the broad OECD/EPA definition. These are used for extreme oil/water repellency but contain perfluoroalkyl chains (–C₆F₁₃, etc.). Even small

As CATL and BYD prepare Q2 solid-state battery vehicle trials, material specs tighten—especially for interfacial buffers. Unlike liquid cells, solid electrolytes (e.g., sulfides) suffer high interfacial resistance and crack under electrode expansion. Silicone-based cushion layers absorb stress and maintain contact. But purity is non-negotiable: transition metals like Fe or Cu—even at 1 pp

“Affordable luxury” cosmetics are under fire. Xiaohongshu searches for #MakeupDupesFlop surged 130% week-over-week, as consumers report redness and irritation. Recent NMPA alerts cite heavy metal violations—traced to industrial silicones in “clean” formulas. Unlike cosmetic-grade dimethicone or cyclopentasiloxane, industrial variants contain uncontrolled Pb, As, Hg, or Ni—sometimes exceed

With Tesla Optimus and Unitree H1 accelerating humanoid robot commercialization, attention turns to hidden materials—especially specialty silicones. Industry estimates suggest each unit uses 0.8–1.2 kg across two key areas. First, electronic skin on hands and faces relies on ultra-clear, low-modulus PDMS oils (>95% transmittance, Tg < –120°C) to embed sensors without optical interfe

The #SolventFreeAdhesive trend exploded on Douyin, with views jumping from 8M to 42M in two weeks, driven by tightening VOC regulations. Yet most formulations overlook a critical enabler: low-viscosity silicone as an internal lubricant. Without solvents, resin viscosities often exceed 10,000 cSt—too thick for coating or dispensing. Adding <50 cSt silicone reduces viscosity dramatically

Suppliers of “low-odor” silicones for automotive interiors and children’s toys face rising complaints: products pass VOC tests yet emit faint chemical smells in real use. The hidden culprit? Residual alkaline catalysts like KOH or tetramethylammonium hydroxide (TMAH). Though not VOCs, these can hydrolyze slowly or react with fillers, releasing ammonia-like notes detectable in sealed envir

As solid-state battery and EV markets surge, demand for UL 94 V-0-rated potting compounds grows. Yet a common misconception persists: “Silicone is heat-resistant, so it must be flame-retardant.” Reality tells a different story. While methyl silicones have high flash points (>300°C), they decompose under UL 94’s 600–800°C flame into volatile cyclics (D4/D5) and flammable hydrocarbons. T

Domestic medical silicone gel breast forms are gaining traction, but some manufacturers cut corners by diluting with ordinary silicone oil. The result? A persistent tacky surface post-cure. Root cause: low-molecular cyclic siloxanes (D3–D6) in non-medical silicones migrate outward over time. Though invisible, these compounds create a greasy film, compromise aesthetics, and raise biocompat

Starting in 2026, Japan’s PMDA requires all imported cosmetic ingredients to submit detailed impurity declarations, including exact concentrations of metals like Fe, Cu, and Ni—typically below 5 ppm. Many Chinese exporters are caught off guard: their Certificates of Analysis (COAs) only state “complies with standards,” lacking numerical data. Japanese reviewers now reject such vague docum