latent hardener for PU sealant

The latent hardener for PU sealant is tailored for high-end polyurethane sealant applications that require stable storage and controlled curing. It activates only under heat or specific conditions, providing longer pot life and flexible processing for industrial users. As a reliable PU additive manufacturer, we offer latent curing agents that enhance sealing strength, elasticity, and chemical resistance after activation. The latent hardener for PU sealant ensures uniform crosslinking, preventing bubbling and surface tack, and delivers consistent performance in automotive, construction, and electronic sealing.
CUCAT-HST
CUCAT-HST

Polyurethane Catalyst for two-component polyurethane system

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CUCAT-V19
CUCAT-V19

Non-foaming Catalyst for low TVOC PU plastic runway resin

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Polyurethane Catalyst CUCAT-HAB
Polyurethane Catalyst CUCAT-HAB

Bubble-free Catalyst for Polyurethane Elastomer and Adhesive & Sealant

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CUCAT-E03
CUCAT-E03

PU Catalyst substitute for Mercury Catalyst

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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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CUCAT-HA02
CUCAT-HA02

Eco-friendly Catalyst for Polyurethane polyurea

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CUCAT-HC
CUCAT-HC

Non-foaming PU Catalyst for Polyurethane Elastomers

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BCAT-E20
BCAT-E20

Eco-friendly Polyurethane Organic Bismuth Metal Catalyst

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FOCAT-8002
FOCAT-8002

Polyurethane Foaming Catalyst

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Polyurethane Catalyst AUCAT-7015
Polyurethane Catalyst AUCAT-7015

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WCAT-WS8
WCAT-WS8

Eco-friendly Catalyst for Silicon PU Stadium Pavement

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BCAT Series of PU Catalyst
BCAT Series of PU Catalyst

Organic Bismuth Polyurethane Metal Catalyst

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latent hardener for PU sealant

The latent hardener for PU sealant functions as a temperature-activated curing component that reacts with polyurethane prepolymers during heat treatment. It provides precise control over curing kinetics and ensures full mechanical development after activation. This additive minimizes premature reaction, extending formulation shelf life. The latent hardener for PU sealant improves elasticity, tear strength, and resistance to chemicals and moisture, making it ideal for long-lasting PU sealing systems.

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