Process Antifoam Agents - MRO: Market Size & Forecast 2026

The global process antifoam agents market sits at approximately USD 1.65 billion in 2025 (base year), anchored by mature pulp-and-paper and water-treatment demand, propped by accelerating food-grade fermentation specifications, and pressured by polydimethylsiloxane (PDMS) feedstock volatility off the back of silicon-metal and upstream petrochemical cycles. A 4.2% CAGR through 2032 is attainable but not assured, it requires sustained water/wastewater investment in emerging markets and pulp-and-paper maintenance spend in mature geographies holding at replacement-cycle rates rather than declining. The headline risk is feedstock: PDMS 100 cSt has traded in a USD 4,200-5,400 per MT band through 2025-2026, and any sustained silicon-metal tightness cascades directly into silicone-based antifoam formulations that represent 38% of category volume. Buyers in this category are navigating a structur

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