November 7th, the 29th day of the ninth lunar month, marks the Start of Winter. As explained in The Seventy-Two Pentads of the Monthly Ordinances: "Li means commencement; Dong means conclusion. All things are stored away." As the first solar term of winter, the Start of Winter brings withered plants and dormant insects. Nature begins to converge and reserve, burying the harvest of the whole year in soil and roots to build strength for growth in the coming year.

For industrial materials, the Start of Winter is also a season for "reservation".

As the temperature falls, the viscosity of adhesives, epoxy resins and battery slurries rises accordingly. Higher viscosity slows the upward movement of bubbles inside materials and makes them harder to escape. Bubbles that used to be eliminated within a few cycles often take much longer in winter. Without proper control, bubbles will remain in blind mixing zones. If materials with residual bubbles go through curing, coating or dispensing processes, micropores, voids and stress concentration will occur, resulting in uneven electrode coating, failed encapsulation sealing and reduced adhesive layer strength. Winter is not merely "cold"; it is a genuine test for material purity.

What SIENOX does is to help materials maintain this "reservation" in cold weather:

In a vacuum environment, bubbles expand, rise and escape rapidly driven by pressure difference. Combined with planetary rotation and revolution stirring, high-viscosity materials are continuously turned, kneaded and sheared so that no bubbles can stay trapped. The slurry becomes fine and uniform without dead zones. Temperatures change and seasons alternate, yet our principle of "removing bubbles and retaining purity" for materials remains unchanged — expel bubbles and impurities, preserve purity and stability.

• New energy battery slurry: Viscosity rises in winter, calling for thorough defoaming to guarantee coating uniformity and consistent electrode quality;

• Semiconductor encapsulation adhesive: Bubbles are fully removed for stable sealing reliability and service life under low-temperature conditions;

• Epoxy resin and potting compound: Forms dense cured mass with reliable cold resistance, weather resistance and insulation performance;

• Electronic adhesives: Fine and bubble-free colloid for smooth dispensing and stable bonding strength.

People nourish themselves and store energy on the Start of Winter, while materials need bubble removal to keep their purity. Both preparations are made for the long winter — only by retaining purity can materials withstand severe cold.

As the weather turns cold, may your production lines keep stable and every batch of materials stay pure as ever. SIENOX reminds you to keep warm and enjoy a bowl of hot dumplings on the Start of Winter.

Wishing all customers, partners and your families good health and all the best on the Start of Winter.

Guangzhou SIENOX Technology Co., Ltd.

November 6, 2026