Desmodur N 3600 Polyurethane Resin Wannate HT-600 TPA-100 HDMI Hardener

Desmodur N 3600 wannate HT-600 TPA-100 HDMI Hardener

1. Characterization

Aliphatic polyisocyanate (HDI trimer).

As the hardener component for lightfast polyurethane coating systems.

2. Specification

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.

Learn polyaspartic knowledge: Polyaspartic FAQ

A polyurethane resin is the result of the chemical reaction between a polyol resin (also known as “Part A”) and a hardener or curing agent (also known as “Part B”). The chemically reactive material in the hardener is called the polyisocyanate curing agent, which becomes an integral part of the polyurethane polymer when mixed with the polyol resin. The polyisocyanate curing agents commonly used in two-pack coatings are made from various diisocyanate monomers. This diisocyanate monomer generally represents less than 0.2% of the total formula when made up of typical two-pack polyurethane coatings. In the poly-isocyanate polymerization process, less than 0.5% remains as a diisocyanate monomer. Although present at deficient levels, the diisocyanate monomer can pose health risks if the polyurethane paint is mishandled. It is important to note that the risks associated with the diisocyanate monomer should be balanced with risks in using alternative curing agents and applying any solvent-borne coating. The user must always follow their respective State Spray Painting Regulations (Qld, NSW, ACT, Vic, Tas, SA, WA & NT) and wear a well-fitting, positive-pressure, air-fed full-face respirator: overalls, safety shoes, and solvent-resistant gloves to spray isocyanate-containing products safely.

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Shenzhen Feiyang Protech Corp., Ltd. specializes in researching and producing polyaspartic polyurea resin and other new chemical products. We are recognized as a "National Special New Key Little Giant" and a "State-level High-tech Enterprise", with more than 50 polyaspartic polyurea invention patents. We also participated in the preparation of 13 industry standards for polyaspartic polyurea materials as a leading company in this field, ranking No.1 in the Chinese market.

In the coating industry, polyaspartic polyurea is used in construction machinery, automobile, containers, fan blades, marine heavy corrosion protection, and high-end industrial and commercial floor coatings. In the adhesive field, it is mainly used in sealants, stone adhesives, electronic adhesives, film circuit packaging adhesives, and other high-end applications. In the waterproofing materials sector, it is primarily used in hydroelectric dams, water parks, building waterproofing repair materials, and other areas. In the structural materials field, it is applied to curling tracks, artificial ice skating rinks, and other structural materials.

Polyaspartic polyurea is considered a high-end new material in the strategy of manufacturing power. We have broken the foreign technology monopoly and filled the domestic market gap. Due to its comprehensive characteristics of "Environmental protection, Energy saving, and Long durability", polyaspartic polyurea can contribute to the realization of genuine carbon neutrality in the coatings, adhesives, and materials industries.

Since 2012, Feiyang polyaspartic ester resin has been supplied overseas. It has been widely used to replace Bayer's current polyaspartic system in many coating companies and has been applied in anti-corrosion and waterproofing by international coating companies.