English
Español
tiếng việt
русский
High reactivity with polyols, enabling fast gelation and reduced cycle times in coating and adhesive applications.
Excellent compatibility with aliphatic and aromatic polyol systems, supporting formulation flexibility.
Low viscosity at ambient temperature for easy handling, metering, and homogeneous mixing without solvent dilution.
Outstanding UV stability and color retention due to its aliphatic isocyanate chemistry.
Compliant with REACH and meets stringent VOC regulations for industrial coatings and elastomers.
High-performance two-component polyurethane topcoats for automotive clearcoats and refinish systems.
Durable protective coatings for industrial equipment, metal substrates, and architectural facades.
Flexible yet abrasion-resistant elastomeric flooring and sports surface systems.
High-gloss, weather-resistant coatings for plastic and composite substrates in transportation and consumer goods.
Adhesives and sealants requiring rapid build-up of cohesive strength and long-term hydrolytic resistance.
| Chemical Type | Aliphatic polyisocyanate (hexamethylene diisocyanate-based) |
| Product Form | Liquid |
| Appearance | Clear, pale yellow liquid |
| NCO Content (wt %) | 15.8 – 16.4 |
| Viscosity at 25 °C (mPa·s) | 800 – 1,200 |
| Density at 20 °C (g/cm³) | 1.12 – 1.15 |
| Flash Point (PMCC, °C) | 145 – 155 |
| Storage Stability (unopened, 25 °C) | ≥ 12 months |
Q1: What is the primary function of Desmodur BL 3370 MPA in coating and adhesive formulations?
A: Desmodur BL 3370 MPA is a low-viscosity, aliphatic polyisocyanate curing agent designed to react with hydroxyl-functional resins—such as polyesters, acrylics, or polyethers—to form durable, weather-resistant polyurethane networks. It enables ambient- or low-bake cure profiles while supporting excellent gloss retention and UV stability.
Q2: Is Desmodur BL 3370 MPA compatible with waterborne systems?
A: Yes, Desmodur BL 3370 MPA is formulated for compatibility with both solventborne and waterborne hydroxyl-containing systems. When used in waterborne applications, it is typically supplied as an emulsifiable dispersion or pre-mixed with co-solvents to ensure stable incorporation and minimize premature reaction with water.
Q3: How does Desmodur BL 3370 MPA compare to aromatic isocyanate curing agents in terms of performance?
A: Unlike aromatic isocyanates, Desmodur BL 3370 MPA is based on aliphatic chemistry, which delivers superior light stability, non-yellowing performance, and enhanced resistance to UV degradation—making it especially suitable for high-end architectural coatings, automotive refinishes, and outdoor industrial finishes where long-term color and gloss retention are critical.
Q4: What safety and handling precautions should be observed when working with this product?
A: As with all isocyanate-based materials, Desmodur BL 3370 MPA requires appropriate personal protective equipment (PPE), including nitrile gloves, chemical-resistant goggles, and adequate ventilation. Avoid inhalation of vapors or mists and prevent skin contact. Always consult the latest Safety Data Sheet (SDS) before use and follow local occupational health and safety regulations.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
