Category overview

Crosslinkers / Curing Agents / Hardeners

Based on 1801 products - Last update on the Jun 26, 2025

Crosslinking agents are additives used in plastics to create a three-dimensional network within the polymer matrix, resulting in a more robust and durable material. These agents typically have a granular or liquid appearance and function by forming covalent bonds between polymer chains. Key features include enhanced mechanical strength, improved thermal stability, and increased chemical resistance. Crosslinking agents are particularly suitable for applications in automotive parts, electrical insulation, and coatings. 

Sub-types include chemical crosslinkers like peroxides and diisocyanates and physical crosslinkers like hydrogen bonding agents.

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Perkadox® PM-60ST-GR

by Nouryon

Perkadox® PM-60ST-GR by Nouryon is a polymer modifier for decreasing the MFI of recycled polypropylene (PP). It offers improved melt strength and mechanical properties. It is formulated with 60% stabilizer package and water to improve its safety profile. It is for used in high temperature environments including extrusion halls. Perkadox® PM-60ST-GR is suitable for reactive extrusion of polypropylene (PP) and recycled polypropylene (rPP).
  • Recently launched
  • Sustainable option
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ULTEM™ SU3102P

by SABIC

ULTEM™ SU3102P by SABIC is a reactive oligomer, a novel toughening agent for thermoset composites used in primary and secondary aerospace structures such as wings, fuselage frames, spoilers and interior components.<br><ul style="padding-left: 40px;"><li>This new polyetherimide (PEI) oligomer delivers unmatched thermoset formulation freedom without impacting processability. </li><li> It maintains low formulation viscosity, supporting consistent and efficient processing that helps reduce cycle time.</li><li>It delivers strength, inherent flame retardance, high heat and chemical resistance, and a low coefficient of thermal expansion (CTE).</li><li>ULTEM™ SU3102P also improves toughness-stiffness balance by up to 140 percent.</li> <li>It can be dropped into existing manufacturing processes and is compatible with a wide range of thermoset resin systems.</li> <li>It creates lighter, thinner and tougher composite structures, increase manufacturing efficiency and cut emissions.</li> <li>Enhanced part durability can reduce maintenance time and costs and increase air safety.</li></ul>
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Luperox® NeatCure® S51A E

by Arkema

Luperox® NeatCure® S51A E by Arkema is an organic peroxide crosslinking agent. It is a dust-free granular formulation, specifically developed for the crosslinking of synthetic rubbers and polymers. It allows fast curing, resulting in higher productivity during continuous curing processes such as extrusion, salt bath curing, or continuous vulcanization lines.<br> <ul style="padding-left: 40px;"> <li>It also provides shorter molding times in press molding and injection molding applications. </li> <li>It offers versatile application across a wide range of elastomers and polymers. </li> <li>It demonstrates responsible innovation, combining safer handling, improved productivity, and regulatory compliance to support sustainability and efficiency goals. </li> <li>It is used in automotive components, wire & cable insulation, industrial goods, and molded rubber products. </li></ul>
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Crosslinkers / Curing Agents / Hardeners