Send Message
Home ProductsIsocyanate Hardeners

Chemicals Resistant DESMODUR N3600 Isocyanate HT 100

Customer Reviews
FEIYANG did offer their professional services and products to us. That is why we have had a long-term and stable business with them for several years. Nowadays, we are more like partners instead of just one of their distributors. Also, I hope we can expand markets in the future together.

—— USA Distributor

Feiyang is a reliable supplier, not only their product quality but also their professional technical support and service. We have done business together for six years already, which contributed to the growth of our business from nothing to several containers annually. We are so happy and lucky to have Feiyang as our partner.

—— European Distributor

We are very happy to be one of Feiyang's distributors in Australia. They are pretty nice supplier. They always do their best to meet our requirements. Our customers also trust Feiyang's high-quality product and out-standing service. Looking forward to developing more business together.

—— Australia Distributor

I'm Online Chat Now

Chemicals Resistant DESMODUR N3600 Isocyanate HT 100

Chemicals Resistant DESMODUR N3600 Isocyanate HT 100
Chemicals Resistant DESMODUR N3600 Isocyanate HT 100 Chemicals Resistant DESMODUR N3600 Isocyanate HT 100 Chemicals Resistant DESMODUR N3600 Isocyanate HT 100

Large Image :  Chemicals Resistant DESMODUR N3600 Isocyanate HT 100

Product Details:
Place of Origin: CHINA
Brand Name: COVESTRO
Certification: ISO 14001, ISO 19001
Model Number: N3600
Payment & Shipping Terms:
Minimum Order Quantity: 200KG
Packaging Details: 200kg/drum
Delivery Time: 7 days after order confirmed
Payment Terms: L/C, T/T
Supply Ability: More than 20000 tons per year

Chemicals Resistant DESMODUR N3600 Isocyanate HT 100

Model: N3600 Desmodur® N 3400 Is Used Primarily As A Reactive Thinner Or As A Hardener Component For: 23.0 ± 0.5
Viscosity At 23 °C: 1,200 ± 300 Equivalent Weight: 183
Flash Point: 158 Density At 20 °C: 1.16
High Light:

DESMODUR N3600 Isocyanate HT 100


Chemicals Resistant Isocyanate HT 100


Chemicals Resistant DESMODUR N3600



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.



Desmodur® N 3600 is primarily the hardener component for lightfast two-component polyurethane coatings with high chemical and weather resistance, lent 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.


Learn polyaspartic knowledge: Polyaspartic FAQ





Contact Details

Contact Person: Annie Qing

Tel: +86 18307556691

Fax: 86-183-07556691

Send your inquiry directly to us (0 / 3000)