Epoxy toughening agent PA662
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Epoxy toughening agent PA662
PA662 Product type:
PA662 epoxy flexibilizer is an amine activating group blocked isocyanate-modified branched polymers containing ether.
PA662 product supplying form:
Epoxy toughening agent PA662 is solvent-free high-viscosity liquids.
PA662 Usage:
PA662 epoxy toughening agent is the material used for epoxy resin flexibility and preparation of elastomeric coatings and sealants.
PA662 Specifications:
|
Product features |
Value |
Unit of measurement |
Test methods |
|
Viscosity,23℃ |
30,000±10,000 |
mPa·s |
DIN EN ISO 219/A.3 |
|
Flash point |
Approximately 200 |
℃ |
DIN EN ISO 2719 |
|
Density,20℃ |
Approximately 1.05 |
g/ml |
DIN EN ISO 2811-1 |
|
Reactive group content |
Approximately 1.6% (isocyanate groups) |
|
|
|
Free isocyanate content |
<0.2% |
|
|
|
Apparent epoxy equivalent |
Approximately 930 |
|
|
* These values provide general information and are not part of the product specification.
PA662 soluble / dilution:
Typically, PA662 has a good compatibility with esters, ketones, ethers, aromatic, a variety of toughening, turpentine and Kristallöl ® 60 (turpentine) . But still test the storage stability of the diluted solution. PU grade solvents should be used (water content less than 0.05%), a solvent should not contain reactive groups. Long-term storage of low solids content
of the solution may appear cloudy and precipitation.
PA662 Compatibility:
Typically, PA662 has a good compatibility with liquid epoxy resin, plasticizer and various liquid amine.
PA662 features / applications:
PA662 can be used to prepare a curable solvent-free liquid polyurethane system. Usually mixed with an epoxy resin curing agent used is preferably a polyamine curing agent.
Best results are obtained with the use of cycloaliphatic diamines (such as Laromin ® C 260, Ancamin ® XT, TCD-diamine, xylene diamine, etc.). When using epoxy resin,
PA662 reactive toughener role.
PA662 Storage:
PA662 epoxy toughening agent should be stored in original sealed containers, sealed after opening to pay attention at all times. Stored at high temperatures may cause an increase
in viscosity.
PA662 safety hazards identified:
According to the standard (Council Directive 67/548/EEC or 1999/45/EC), epoxy toughening agent PA662 does not classified as dangerous.
Should strictly comply with the product safety data sheet. It contains information on labeling, transport and storage, as well as relevant information on handling, product safety and
ecology.
