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.
CUCAT-HC
CUCAT-HC

Non-foaming PU Catalyst for Polyurethane Elastomers

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Polyurethane Catalyst CUCAT-FS01
Polyurethane Catalyst CUCAT-FS01

PU Catalyst for two-component waterproof coating

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ZCAT Series of PU Catalyst
ZCAT Series of PU Catalyst

Organic Zinc Polyurethane Metal Catalysts

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CUCAT-V17/V18
CUCAT-V17/V18

Non-foaming Catalyst for low TVOC PU plastic runway resin

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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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CUCAT-V19
CUCAT-V19

Non-foaming Catalyst for low TVOC PU plastic runway resin

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AUCAT-RM301
AUCAT-RM301

Anti-hydrolysis Polyurethane Thermal Sensitive Catalyst

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BCAT-E20
BCAT-E20

Eco-friendly Polyurethane Organic Bismuth Metal Catalyst

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CUCAT-HAA
CUCAT-HAA

Bubble-free Catalyst for Polyurethane Elastomers

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CUCAT-GF01/GF02
CUCAT-GF01/GF02

Eco-friendly Polyurethane Catalyst substitute for DBTDL T-12

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ZCAT-Z19P
ZCAT-Z19P

Eco-friendly PU Organic Zinc Catalyst for Polyurethane Sport Track Resin and silicon PU

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Tin Catalyst TCAT-NS01
Tin Catalyst TCAT-NS01

high efficiency chelated tin catalyst

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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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