Product Introduction
Linear polyurethane prepolymers containing crosslinkable blocked isocyanate groups. Raw material for improving the flexibility of epoxy resins and making elastic coatings and sealants. Desmocap® 12 system is softer and more flexible than Desmocap® 11
form of supply
Solvent-free high viscosity liquid
Specification
characteristic |
Numerical value |
Units of measurement |
method |
Viscosity, 23°C |
40000 ± 12000 |
mPa.s |
M014-ISO 3219/A.3 |
Other data*
characteristic |
Numerical value |
Units of measurement |
method |
Flash point |
about 200 |
℃ |
DIN EN ISO 2719 |
Density,20℃ |
about 1.04 |
g/ml |
DIN EN ISO 2811-1 |
NCO content |
about 1.6 |
% |
|
Free isocyanate content |
< 0.2 |
% |
|
performance epoxy equivalent |
about 1500 |
|
|
*This data is general information and is not part of the product specification.
Features/Applications .
Desmocap® 12 can be used to prepare curable liquid solvent-free polyurethane systems. Polyamides, which are usually mixed with epoxy resins, are ideal curing agents. Best results are obtained with cycloaliphatic diamines such as Laromin® C 260, Ancamin® XT, TCD-diamine, xylene diamine, etc. When mixed with epoxy resins, Desmocap® 11 acts as a reactive toughener.
compatibility
Generally, Desmocap® 12 has good compatibility with liquid epoxy resins, tougheners and various liquid amines.
Solubility / Dilution
In general, Desmocap® 12 has good compatibility with esters, ketones, ethers, aromatics, various tougheners, turpentine and turpentine. However, the storage stability of the prepared solution still needs to be tested. Polyurethane grade solvents (less than 0.05% water content) should be used and should not contain reactive groups. Long-term storage of low-solids solutions may cause turbidity and precipitation.
Store
- Store in original Covestro airtight containers.
- Recommended storage temperature: 10-30°C.
- Avoid moisture, heat, and foreign substances.
General Information: This product should always be stored in its original airtight container. High temperature storage may result in an increase in viscosity.
storage time
Provided that the product has been stored in full compliance with the requirements in the "Storage" clause above and handled properly, the product meets the specifications stated in the "Specifications or Characteristic Values" clause above for a period of 6 months from the date of shipment stated on the shipping document or characteristic value (as applicable). The fact that a product exceeds the 6-month period above does not mean that it no longer meets the specifications or the values set in the characteristic values. However, it is recommended that products older than 6 months from the date of shipment be tested prior to use to confirm that they still meet the values set in the specifications or characteristic values. The manufacturer makes no commitments for products older than 6 months from the date of shipment, and does not assume any responsibility or liability for non-conformance to specifications or set values in characteristic values.
Safety
This product data sheet applies only to the latest version of the corresponding safety document. Any updates to safety-related information consistent with legal requirements will only be reflected in the Safety Data Sheet, which will be updated and published. Information related to current classification and labelling, application and process methods, and more safety-related data can be found in the latest available safety data sheets.
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