HDI closed Vencorex D2
HDI closed Vencorex D2
Description:
Blocked aliphatic polyisocyanate (HDI homopolymer), supplied at 75 % solids in aromatic solvent.
Specifications:
Colour |
?40 HAZEN (APHA) |
Viscosity at 25°C |
2500 – 4000 mPa.s |
NCO (available after deblocking) |
11.2 ±0.5 % |
Solids content |
75.0±2.0 % |
Free NCO |
< 0.2 % |
The analytical methods are available upon request
Physical Properties:
Appearance |
Clear liquid |
Bulk density at 25°C |
1060 kg/m3 approx. |
Weight per US gallon |
8.85 lbs approx. |
Flash point (closed cup) |
49°C approx. |
Equivalent weight (on delivery form) |
375 g approx. |
Solubility:
Soluble in esters, ketones, aromatic hydrocarbons. In most cases, esters/aromatic hydrocarbon mixtures are used.
Applications:
Tolonate™ D2 is typically used as a crosslinker of hydroxylated polymers notably polyesters and polyacrylates to prepare heat activated one component polyurethane systems for weatherable coatings giving excellent mechanical properties in conjunction with outstanding resistance to solvents, abrasion and chemical products. Tolonate™ D2 is commonly used in Automotive OEM formulations, can and coil coatings and other general industrial coatings on metal. The curing conditions are generally 20 to 40 minutes at 140-160°C (285-305°F) or 30 to 35 seconds at 320°C (PMT = 232 / 241°C).
Packaging and transport
Packaging (please contact our sales team for more details)
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US origin: 215 kg net metallic drum
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France origin: deliveries of 860 kg net weight pallets (4 drums of 215 kg netweight).
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Other packaging: upon request
Transport:
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Regulated. For more precise details, please refer to the safety data sheet
Storage conditions and shelf-life:
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Tolonate™ D2 is not affected by moisture at room temperatue.
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Appropriate storage for two years does not normally affect Tolonate™ D2 in anyway if it is stored in its sealed original drums inusual storage condition, at temperatures bellow 40°C.
Flammability and safety instructions:
Before handling this product please refer to its safety data sheet
E_mail us : sales@newtopchem.com
HDI closed Covesro BL 3175 SN
HDI closed Covesro BL 3175 SN
ABOUT:
Blocked aliphatic HDI-polyisocyanate. With Desmophen® grades to formulate lightfast one-component polyurethane stoving coatings; as an additive to improve flexibility and adhesion.
Product Types:
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HDI
-
PIC
-
Aliphatic polyisocyanate
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Crosslinkers
-
Polyisocyanate
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Hardeners
-
Polyisocyanurate
-
Isocyanate
Material:
Coatings, paints & inks:
Solventborne, Flexible, Thermally resistant, Elastic
General Characterization:
Blocked, aliphatic polyisocyanate based on HDI.
In combination with Desmophen® grades to formulate lightfast, one-component polyurethane stoving coatings; as an additive in conventional stoving systems to improve flexibility and adhesion.
Storage Conditions:
– Storage in original sealed Covestro container.
– Recommended storage temperature: 0 – 30 °C.
– Protect from moisture, heat and foreign material.
General information: Storage at higher temperatures will result in increase of color and viscosity. Storage at significant lower temperatures will result in solidification. This solidification is reversible by briefly heating the product without adversely affecting the quality of the product.
Characteristics:
Property Name |
Test Method |
Unit |
Value |
Equivalent weight |
approx. 380 |
||
Density at 20 °C |
DIN EN ISO 2811 |
g/ml |
approx. 1.06 |
Flash point |
DIN 53 213/1 |
°C |
approx. 45 |
Blocked NCO content |
% |
approx. 11.1 |
|
Viscosity at 25 °C |
M014-ISO 3219/A.3 |
mPa*s |
approx. 2,800 |
Specifications:
Property Name |
Test Method |
Unit |
Value |
Color value (Hazen) |
M017-EN 1557 |
? 60 |
|
Viscosity at 23 °C |
M014-ISO 3219/A.3 |
mPa*s |
3,300 ± 400 |
Free NCO content, modified |
M105-ISO 11909 |
% |
? 0.2 |
Non-volatile content (0.2 g / 60 min / 80 °C) |
M020-ISO 3251 |
% |
75 ± 2 |
