English
Español
tiếng việt
русский
Two-component aliphatic polyurethane system offering excellent UV resistance and minimal yellowing upon long-term exposure.
High solids content (>85%) enables low-VOC formulations compliant with global environmental regulations.
Superior flexibility and impact resistance without compromising hardness or chemical durability.
Excellent adhesion to diverse substrates including metals, plastics, and cured concrete.
Controlled pot life (4–6 hours at 25°C) supports efficient industrial application and recoat scheduling.
High-performance protective coatings for offshore platforms and marine infrastructure.
Topcoats for wind turbine blades requiring weatherability and erosion resistance.
Industrial floor coatings in pharmaceutical and food-processing facilities.
Clear and pigmented finishes for architectural precast concrete elements.
Coating binder for high-durability composites used in transportation interiors.
| Chemical Type | Aliphatic two-component polyurethane resin (Part A: polyol; Part B: isocyanate crosslinker) |
| Product Form | Liquid, solvent-based (low-aromatic) |
| Appearance (Part A) | Clear to pale amber viscous liquid |
| Appearance (Part B) | Colorless to light yellow liquid |
| Primary Applications | High-durability protective and decorative topcoats |
| Key Features | UV stability, low VOC, substrate versatility, flexible film formation |
| Benefits | Extended service life, regulatory compliance, reduced maintenance frequency, aesthetic retention |
Q1: What is the primary function of Arakawa PU-75 in coating and adhesive formulations?
A: Arakawa PU-75 serves as a reactive polyurethane resin that enhances film formation, flexibility, and chemical resistance. It functions as a crosslinking component or performance modifier in solvent-based and high-solids systems, contributing to improved toughness and substrate adhesion.
Q2: Is Arakawa PU-75 compatible with common industrial resins such as acrylics, epoxies, or alkyds?
A: Yes, PU-75 demonstrates good compatibility with many thermoplastic and thermosetting resins—including acrylics and alkyds—when properly formulated. Compatibility with epoxy systems may require evaluation under specific cure conditions due to potential reactivity differences.
Q3: How should Arakawa PU-75 be stored to maintain stability and performance?
A: Store in tightly sealed original containers in a cool, dry place away from moisture, heat sources, and direct sunlight. Prolonged exposure to ambient humidity may affect viscosity and reactivity; unopened containers typically retain stability for up to 12 months under recommended conditions.
Q4: Does Arakawa PU-75 require a catalyst or hardener for full cure?
A: PU-75 is designed to react with isocyanate-functional curing agents. While it does not self-cure, it can participate in ambient-cure or thermal-cure systems depending on the selected co-reactant. Catalyst selection (e.g., tertiary amines or organometallic compounds) is formulation-dependent and typically used to fine-tune pot life and cure profile.
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
