Weather Stability DESMODUR N 3800 For Coating Systems

DESMODUR N3800

                                                                                                                                           Get a Quote

^{1. Characterization}

Aliphatic polyisocyanate (HDI trimer).

As the hardener component for lightfast polyurethane coating systems.

^{2. Specification}

^{3. Solubility / thinnability}

^{Desmodur® N 3800 is thinnable 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. Compatibility with the listed solvents is generally good, but the respective solutions' storage stability should be tested. Only PU-grade solvents should be used (max. 0.05 % water, free of reactive hydroxyl or amino groups). Aliphatic hydrocarbons are unsuitable as solvents.}

^{Desmodur® N 3800 should not be thinned to less than 40 % non-volatile content. With time, lower binder content can lead to turbidity and sedimentation.}

^{4. Compatibility}

^{Generally speaking, Desmodur® N 3800 can be mixed with the following products: Aliphatic polyisocyanates such as Desmodur® N 100, N 75, N 3200, ultra N 3400, N 3600 and Desmodur® Z 4470; aromatic polyisocyanates such as 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 constantly be tested.}

^{Desmodur® N 3800 is incompatible with branched polyester polyols such as Desmophen® 651 or polyether polyols such as Desmophen® 1380 BT.}

^{5. Properties / Applications}

^{Desmodur® N 3800 is primarily used as a hardener component for lightfast,two-component polyurethane coating systems with high chemical resistance and weather stability, good gloss retention, and outstanding mechanical properties. Preferred combination partners are polyacrylate or polyester polyols.}

^{The field of application for coating systems based on Desmodur® N 3800 is air and heat-drying automotive OEM, automotive refinishing, transportation, industrial, and plastic coatings.}

^{6. 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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Elastic Hardener FEICURE Series

Model	Density (25℃)	Viscosity (mpa.s/25℃)	Solid Content (%)	NCO Content (%)	Type	Features and Applications
Desmodur N3300	approx. 1.16	approx. 2500	≥99	21.8±0.3	HDI trimer	The main applications for systems based on Desmodur N3300 are air- and force-drying coatings for automotive OEM, automotive refinishing, transportation, industrial finishing, and plastics.
Desmodur N3600	approx. 1.16	approx. 1100	≥99	23.0±0.5	HDI trimer	Air- and force-drying coatings for automotive OEM, automotive refinishing, transportation, industrial finishing, and plastics. Particularly suitable for formulating high-solids coatings. It can also be used as the hardener for aqueous two-component polyurethane coatings.
WANNATE HT-300	approx. 1.16	200~700	≥99	19.5~20.5	HDI trimer	Suitable for self-drying, high solid Content, and solvent-frees, especially for polyaspartic polyurea systems. It can coat original automobile paint (OEM), automobile repair, transportation tools, industrial products, floors, and plastics.
WANNATE HT-600	approx. 1.16	900~1500	≥99	22.5~23.5	HDI trimer	The main applications for coatings based on WANNATE HT-600 are automotive refinishing, transportation, industrial finishing, and plastics.
SP-103P	1.01	100-300	60±2(BA)	3.2-3.6	IPDI Prepolymer	Dedicated hardener for exterior waterproof topcoat. Adjust flexibility of polyaspartic rigid coating system. Non-yellowing, QUV testing 1500 hours.
GB905A-85	1.05	3000-6000	85±2(xylene)	6.6-7.2	IPDI Prepolymer	High solid content,short branched-chain, applied in flexible high solid content coating. Improve the flexibility of PU system.
GB926-85	1.07	4000-6000	85±2(BA)	4.9-5.3	IPDI Prepolymer	High elongation and strength, resist to rain erosion, applied in flexible high solid content coating. Improve the flexibility of PU system. Can be used for windmill blade topcoat.
GB951-100	1.11	1000-2500	≥99	20.8-21.2	HDI / Si Prepolymer	Anti-corrosion coating, improve coating adhesion.
GB963A-100	1.12	1000-2000	≥98	8.5-9.0	HDI / Si Prepolymer	High solid and low viscosity, used for high solid content, solvent-free elastic weather-resistant topcoat, low temperature resistant elastic coating, elastic adhesive.
GB-963B-100	1.12	1000-2000	≥99	10.0-10.4	HDI Prepolymer	High solid and low viscosity, used for high solid content, solvent-free elastic weather-resistant topcoat, low temperature resistant elastic coating, elastic adhesive.
GB902-100	1.12	4000-6000	≥99	8.8-9.4	HDI Prepolymer	High solid and low viscosity, used for high solid content, solvent-free elastic weather-resistant topcoat, low temperature resistant elastic coating, elastic adhesive.
GB930-100	1.10	200-700	≥99	19.5-20.5	HDI Trimer	High solid and low viscosity, used for high solid content, solvent-free topcoat, flooring, weather-resistant topcoat for construction machinery.
GB805A-100	1.05	3000-6000	≥98	4.7-5.2	TDI/HMDI Prepolymer	Applied in non-solvent polyaspartic flexible topcoat, flooring topcoat.
GB805B-100	1.05	1500-3000	≥98	10.3-10.7	TDI/HMDI Prepolymer	High solid content, low viscosity. Applied in non-solvent flexible waterproof, flooring and sealing materials etc.
GB605C-100	1.04	2000-4000	≥98	8.1-8.6	HMDI Prepolymer	High solid content with low viscosity, applied in solvent-free flooring coating, adhesive, edge sealing adhesive etc.

 

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