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ISO 14001 Desmodur N 3600 Wannate HT-600 TPA-100 HDMI Hardener

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ISO 14001 Desmodur N 3600 Wannate HT-600 TPA-100 HDMI Hardener

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Brand Name :Covestro
Model Number :Desmodur N 3600 wannate HT-600 TPA-100
Certification :ISO 14001, ISO 19001
Place of Origin :China
MOQ :200kg
Payment Terms :L/C, T/T
Supply Ability :More than 20000 tons per year
Delivery Time :7days after order comfirmed
Packaging Details :200KG/Drum, 4Drums/pallet, 16Ton/20GP
NCO content :23.0% ± 0.5%
Viscosity at 23 °C :1,200mPa·s ± 300mPa·s
Color value (Hazen) :≤ 40
Monomeric HDI :< 0.25%
Viscosity at 25 °C :approx. 1100mPa·s
Equivalent weight :approx. 183
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Desmodur N 3600 wannate HT-600 TPA-100 HDMI Hardener

A hardener is a component of certain mixtures. ... A hardener can be either a reactant or a catalyst in the chemical reaction during the mixing process. In other combinations, a hardener is used as a curing component. A hardener may also be known as an accelerator.

Hardeners are almost always necessary to make an epoxy resin useful for its intended purpose. Without a hardener, epoxies do not achieve anywhere near the impressive mechanical and chemical properties that they would with the hardener. The correct type of hardener must be selected to ensure the epoxy mixture will meet the application's requirements. Examples of epoxy hardeners are anhydride-based, amine-based, polyamide, aliphatic, and cycloaliphatic. Research should always be done on the resin and hardeners to ensure the final epoxy mixture will perform satisfactorily. E

1. Characterization

Aliphatic polyisocyanate (HDI trimer).

As the hardener component for lightfast polyurethane coating systems.

2. Specification

Property Value Unit of measurement Method
NCO content 23.0 ± 0.5 % DIN EN ISO 11 909
Viscosity at 23 °C 1,200 ± 300 mPa·s DIN EN ISO 3219/A.3
Color value (Hazen) ≤ 40 DIN EN 1557
Monomeric HDI < 0.25 % DIN EN ISO 10 283
Viscosity at 25 °C approx. 1100 mPa·s DIN EN ISO 3219/A.3
Equivalent weight approx. 183
Flash point approx. 158 °C DIN 22 719
Density at 20 °C approx. 1.16 g/ml DIN EN ISO 2811

3. Solubility

Desmodur® N 3600 can be thinned with esters, ketones, and aromatic hydrocarbons such as ethyl acetate, butyl acetate, PMA, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, toluene, xylene, solvent naphtha® 100 and mixtures thereof.

Generally speaking, it has good compatibility with the solvents listed. However, the solutions formed must be tested for their storage stability. Only PU-grade solvents should be used (max. 0.05 % water, absence of reactive hydroxyl or amino groups). Aliphatic hydrocarbons are unsuitable as solvents.

4. Thinnability

Desmodur® N 3600 should not be thinned to below a solids content of 40 %. Prolonged solution storage with a lower binder content may result in turbidity and sedimentation.

5. Compatibility

Generally speaking, Desmodur® N 3600 can be mixed with the following products: Aliphatic polyisocyanates like Desmodur® N 100, N 75, N 3200, ultra N 3300, N 3400 and Desmodur® Z 4470; aromatic polyisocyanates like Desmodur® L/ultra L, HL and IL/ultra IL; polyester polyols such as Desmophen® 670 and polyacrylates. However, the compatibility of the combinations used should be tested.

Desmodur® N 3600 is incompatible with branched polyester polyols such as Desmophen® 651 or polyether polyols such as Desmophen® 1380 BT.

6. Properties

Desmodur® N 3600 is primarily the hardener component for lightfast two-component polyurethane coatings with high chemical and weather resistance, good gloss retention, and outstanding mechanical properties. Preferred co-reactants are polyacrylate or polyester polyols.

7. Applications

The main applications for systems based on Desmodur® N 3600 are air- and force-drying coatings for automotive OEM, automotive refinishing, transportation, industrial finishing, and plastics.

Because of its low viscosity, Desmodur® N 3600 is particularly suitable for formulating high-solids coatings. It can also be used as the hardener for aqueous two-component polyurethane coatings.

8. Storage

- Storage in original sealed Covestro container.

- Recommended storage temperature: 10 - 30 °C.

- Protect from moisture, heat, and foreign material.

General information: The product is sensitive to moisture and should therefore be stored in tightly sealed containers. Storage at elevated temperatures will lead to an increase in viscosity and a reduction of the NCO content.

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