CORONATE HX is used as a curing agent in two-pack coatings. It is a product with good weather resistance.
composition
Polyisocyanate modified by HDI isocyanate trimer
form
A polyisocyanate with a solids content of approximately 100%. Does not contain solvents.
Specifications
Exterior |
light yellow liquid |
NCO content (wt%) |
20.5-22.0 |
Solid content (wt%) |
100 |
Viscosity 25℃(Gardner) (cSt) |
X-Z2 1290-3620 |
Chromatic Number (Gardner) |
<1 |
Free HDI (wt%) |
<0.5 |
Flash point (℃) |
225 |
Specific gravity (d25℃/4℃) |
about 1.159 |
The above data are general information, not product specifications.
Features
CORONATE HX as a curing agent for non-yellowing polyurethane coatings. Compared with curing agents of biuret and urethane adducts, it has unique and excellent characteristics. In particular, it has excellent heat resistance and compatibility with polyols and solvents. CORONATE HX is widely used in industry. It is used in motorcycle and automobile parts, automobile repair, woodworking, etc.
Solubility
CORONATE HX is soluble in ethyl acetate, butyl acetate, toluene, xylene and other solvents. However, it cannot be used together with solvents such as alcohols containing active hydrogen.
dilution
CORONATE HX can be diluted to 20% solids. However, please conduct a compatibility test with the solvent to be diluted before use. When CORONATE HX is diluted below 20% solid content, turbidity and precipitation will occur. Please use a solvent with a moisture content of 0.1% or less.
Compatibility
CORONATE HX has excellent compatibility with other curing agents (CONORATE L, CORONATE HL, etc.) and polyols (acrylic polyols, alkyd polyols). However, please conduct a compatibility test before mixing.
application
Because the two-component coating composed of CORONATE HX and acrylic polyol has excellent weather resistance, it is not easily affected by ultraviolet rays, and the color change is small. Used in automotive refinish coatings and industrial coatings. A two-pack type coating composed of CORONATE HX and alkyd polyol is used as a woodworking coating. When CORONATE HX is added to resins containing nitrocellulose-based, alkyd-based resins or polyethylene resins, physical properties such as chemical resistance of coatings can be improved. However, when using, it is necessary to study the mixing ratio and the like.
Precautions for use
(1) During storage and storage
Since CORONATE HX is an active isocyanate compound, care must be taken to avoid direct sunlight, keep away from moisture, and store in airtight containers. For long-term storage, please keep it in a temperature environment of 20~30℃.
(2) When using and changing packaging
Isocyanate is a very active substance. When it reacts with water, CO2 gas is produced. When isocyanates are stored in a sealed container in which water is mixed, the internal pressure of the container increases due to the generation of gas, and the container may rupture. There is a problem of deterioration due to the action of moisture in the air when a small amount is taken several times from a container. Therefore, before opening and then sealing, it must be fully replaced with dry air, and great care must be taken to prevent moisture from entering
(3) When diluted
When CORONATE HX is diluted with solvent, not only should pay attention to the water content in the solvent, but also pay attention to prevent water from mixing in the dilution operation. The dilution work should be carried out in a dry room.
safety
①CORONATE HX must be careful when using it because it contains isocyanate.
②When using, please follow the requirements of the material safety data sheet (MSDS).
③ This product is flammable. Please use it in a fire-free place.
④ This product should avoid contact with eyes or skin. Please wear protective equipment such as safety glasses and gloves when using it.
⑤When spraying the paint containing this product, please wear protective equipment such as protective glasses and gas masks in order to prevent steam and fog from entering the eyes or nose.
⑥ The free isocyanate content of this product is below 1%. Long-term storage will not increase.
Package
220kg iron drum
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