Covestro Bayhydur VP LS 2336 Waterborne HDI Hardener
|
type |
Hydrophilic aliphatic polyisocyanates based on hexamethylene diisocyanate |
|
form of supply |
Solvent free |
|
use |
Curing agent for waterborne two-component polyurethane coatings |
Product Specifications
|
characteristic |
Numerical value |
Units of measurement |
method |
|
NCO content |
16.2±0.4 |
% |
DIN EN ISO 11 909 |
|
NCO content |
6,500±1,500 |
mPa·s |
DIN EN ISO 3219 |
|
Hazen color value |
≤150 |
|
DIN EN 1557 |
|
Isocyanate monomer content |
<0.15 |
% by weight |
DIN 55 956 |
Other data*
|
characteristic |
Numerical value |
Units of measurement |
method |
|
density |
about 1.16 |
g/cm3 |
DIN 51 757 |
|
Flash point |
about 230 |
°C |
DIN EN 53 213 |
*The above values are general information.
Solubility / dilution
Bayhydur® VP LS 2336 generally has good compatibility with organic solvents such as esters, ether esters, xylene and solvent naphtha 100. However, in any case the solubility/miscibility of the previously prepared solution must be tested. Polyurethane grade solvents should be used (moisture content <0.05%).
Features/Applications
This product is a cross-linking agent for water-based coatings. It is particularly suitable for use in civil applications where it is ready to mix by shaking or hand stirring. Even in pre-diluted conditions, the coating film remains clear and bright. The mixing ratio of grinding base to curing agent is usually 10:1.
storage
This product is moisture sensitive and should be stored in its original sealed container. Stored under proper conditions, this product has a shelf life of at least 6 months. But the viscosity will increase slightly.
Safety: Hazard Identification
May cause sensitization in contact with skin. Product contains isocyanates. The Safety Data Sheet (301721) should be read carefully. It includes information on labelling, transport and storage, as well as information on product use, product safety and ecology.
