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-E02
CUCAT-E02

Polyurethane Catalyst substitute for Mercury Catalyst

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AUCAT Series of PU Catalysts
AUCAT Series of PU Catalysts

Eco-friendly Anti-hydrolysis Polyurethane Catalyst

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BCAT-E20CX
BCAT-E20CX

Organic Bismuth Metal Polyurethane Catalyst

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Low TVOC catalyst CUCAT-V17A&18
Low TVOC catalyst CUCAT-V17A&18

Bubble-free Catalyst for low TVOC PU plastic runway resin

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AUCAT-1301
AUCAT-1301

Tin Free Anti-hydrolysis PU Catalyst for shoes adhesive

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ZCAT-EZ19
ZCAT-EZ19

Eco-friendly PU Organic Zinc Catalyst for Polyurethane Sport Track and PU running track

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WCAT-WS8
WCAT-WS8

Eco-friendly Catalyst for Silicon PU Stadium Pavement

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Tin-free PU catalyst WCAT-WH03
Tin-free PU catalyst WCAT-WH03

Moisture-cured Polyurethane Catalyst substitute for DBTDL T12

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ZCAT-EX16
ZCAT-EX16

Polyurethane Organic Zinc Metal Catalyst for PU Resin

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Polyurethane Catalyst CUCAT-FS01
Polyurethane Catalyst CUCAT-FS01

PU Catalyst for two-component waterproof coating

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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-WS17
WCAT-WS17

Moisture-cured Polyurethane Catalyst substitute for DBTDL T12

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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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