Defoamers Market at a Glance The global defoamers market was valued at USD 4.0 billion in 2025. It is estimated at USD 4.2 billion in 2026 and is projected to reach USD 5.8 billion by 2033, a CAGR of 4.9% from 2026 to 2033. That adds roughly USD 1.6 billion in annual revenue between 2026 and 2033. Asia Pacific led regionally with 37.7% of 2025 revenue. Silicone-based products led by type with a...