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Home » Elastomers » Chain Extenders and Curatives

Chain Extenders and Curatives

Tri-iso distributes a wide range of chain extenders and curatives that allow formulators to produce high quality polyurethane elastomers.  Chain extenders are low molecular weight (short chain) diols and diamines.  Chain extenders align themselves with the stiff and largely immobile hard segments in polyurethane elastomers (reacted chain extenders and polyurethanes). Curatives are high functionality polyols and amines (functionality greater than 2) which act like crosslinkers between the coiled soft segments in polyurethane elastomers (high molecular weight polyester or polyether polyols) and the hard segments of the polyurethane system.  The interaction between the soft and hard segments in a polyurethane elastomer is what provides the desirable physical properties such as elasticity, tensile strength, tear resistance, and elongation.

Your Tri-iso Technical Sales Representative is available to assist you in the selection of the appropriate crosslinkers and chain extenders that will provide the specific properties you are trying to obtain. Click here to request a quote.

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  Product Name  Model   
1,4 BD
1,4 BD

1,4 BD used extensively to manufacture polyurethane cast elastomers. read more
1,4 BD
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1,4 BDO
1,4 BDO

1,4 BDO provides exceptional reactivity, linearity & overall compatibility. read more
1,4 BDO
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1,4 Butanediol
1,4 Butanediol

Chain extender in the manufacture of polyurethanes read more
1,4 Butanediol
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Dorf Ketal Clearlink 1000
Dorf Ketal Clearlink 1000

Aliphatic secondary diamine curative (liquid) - Equivalent Weight 157-166 read more
Clearlink 1000
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Dorf Ketal Unilink 4100
Dorf Ketal Unilink 4100

Unilink 4100 is an aromatic secondary diamine curative (liquid) for polyurea and read more
Unilink 4100
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Dorf Ketal Unilink 4200
Dorf Ketal Unilink 4200

Unilink 4200 is a unique aromatic diamine originally developed by UOP as a chain read more
Unilink 4200
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Dorf Ketal Unilink 4230
Dorf Ketal Unilink 4230

Unilink 4230 is a liquid curing agent - balanced chain extension/crosslinking read more
Unilink 4230
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Rhein Chemie Addolink 1604
Rhein Chemie Addolink 1604

Diamine Curative with Extended Cure Time for Elastomers read more
Addolink 1604
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Rhein Chemie Addolink 30-10
Rhein Chemie Addolink 30-10

Elastomer Crosslinker based on HQEE for thermal stability & low compression set read more
Addolink 30-10
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Rhein Chemie Addolink TR Flakes
Rhein Chemie Addolink TR Flakes

Crosslinker based on Trimethylolpropane (TMP) read more
Addolink TR Flakes
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Rhein Chemie Addovate SM
Rhein Chemie Addovate SM

Crosslinker and Emulsifier and Stabilizer read more
Addovate SM
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