defoamer for PU sealant

The defoamer for PU sealant supports industrial sealant producers in maintaining consistent film smoothness and elasticity. It prevents air entrapment during mixing and application, minimizing defects in construction and automotive sealing lines. Formulated for both one- and two-component PU sealants, it improves aesthetic quality and bonding performance. With excellent chemical stability and long-term effectiveness, it helps OEM partners achieve higher yield and productivity. Our low-VOC defoamers comply with global environmental standards and ensure clean, durable sealing under diverse conditions.
WCAT Series of PU Catalysts
WCAT Series of PU Catalysts

Eco-friendly Moisture-cured Polyurethane Catalyst

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CUCAT-GF02
CUCAT-GF02

Eco-friendly Polyurethane Catalyst substitute for DBTDL T-12

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WCAT-WS12A
WCAT-WS12A

Eco-friendly Catalyst for Silicon PU Stadium Pavement

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Bismuth and Zinc Composite Catalyst BX-EM14
Bismuth and Zinc Composite Catalyst BX-EM14

Bismuth and Zinc Composite Catalyst BX-EM14

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AUCAT-101
AUCAT-101

Tin Free Anti-hydrolysis PU Catalyst for Polyurethane Paint

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CUCAT-V17/V18
CUCAT-V17/V18

Non-foaming Catalyst for low TVOC PU plastic runway resin

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WCAT-WP01A
WCAT-WP01A

Moisture-cured PU Catalyst for Aliphatic Isocynate System

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WCAT-WS11-WS11A
WCAT-WS11-WS11A

Eco-friendly Catalyst for low TVOC sport track resin and silicon PU stadium pavement

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TCAT series of Tin Catalysts
TCAT series of Tin Catalysts

Organotin Catalysts for Polyurethane

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CUCAT-GF01/GF02
CUCAT-GF01/GF02

Eco-friendly Polyurethane Catalyst substitute for DBTDL T-12

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WCAT-WS2
WCAT-WS2

Moisture-cured Polyurethane Catalyst substitute for DBTDL T12

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ZCAT Series of PU Catalyst
ZCAT Series of PU Catalyst

Organic Zinc Polyurethane Metal Catalysts

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defoamer for PU sealant

The defoamer for PU sealant eliminates trapped air and microfoam during compounding and extrusion. It maintains viscosity uniformity and prevents crater formation on cured surfaces. The product is resistant to heat, shear, and reactive isocyanate environments, ensuring compatibility with PU sealant formulations. It supports even curing and strong adhesion without affecting elasticity, weather resistance, or gloss.

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