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| OEM | OEM Services Provided |
| Feature | Good stability |
| Classification | Paint Additives |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact Export Director now ↓ |
Performance Features
Excellent film fullness, weathering resistance, good drying, levelling
Main Applications
Topcoat or clearcoat for car
| Category | Details |
|---|---|
| Chemical Type | Polyether or polyester polyol |
| Hydroxyl Value | 200–800 mg KOH/g |
| Functionality | 2–6 (typically 2–3) |
| Viscosity (25°C) | 500–10.000 mPa·s |
| Property | Typical Range |
|---|---|
| Molecular Weight | 500–5.000 g/mol |
| Acid Value | <2 mg KOH/g |
| Water Content | <0.1% |
| Glass Transition Temp. (Tg) | -60°C to +50°C |
| Process | Description |
|---|---|
| Polyether Route | Alkylene oxide polymerization |
| Polyester Route | Diacid/diol condensation |
| Modification | Grafting or chain extension |
| Industry | Use Case | Key Benefit |
|---|---|---|
| Polyurethanes | Flexible foams, elastomers | Crosslink density control |
| Coatings | 2K polyurethane systems | Improved adhesion |
| Adhesives | Structural bonding | Enhanced toughness |
| Elastomers | Cast PU parts | Mechanical property tuning |
| Component | Role | Typical Ratio |
|---|---|---|
| Polyol Resin | Base polymer | 60–90% |
| Isocyanate | Curing agent | 10–40% (NCO:OH = 1:1) |
| Catalysts | Reaction control | 0.1–1% |
| Additives | Property modifiers | 1–5% |
| Feature | Impact |
|---|---|
| High Reactivity | Faster cure times |
| Tunable Flexibility | Wide hardness range (Shore A 50–D 80) |
| Chemical Resistance | Improved vs. low-OH polyols |
| Parameter | High-OH Polyol | Low-OH Polyol |
|---|---|---|
| Cure Speed | Fast | Slow |
| Crosslink Density | High | Low |
| Flexibility | Adjustable | Inherently flexible |
| Aspect | Requirement |
|---|---|
| Storage | Nitrogen blanket, <40°C |
| VOC Content | <50 g/L (solvent-free) |
| PPE | Gloves, eye protection |
| Application | Market Share | Growth Rate |
|---|---|---|
| Flexible Foam | 45% | 4.2% CAGR |
| Coatings | 30% | 5.8% CAGR |
| Adhesives | 25% | 6.5% CAGR |
| Advantages | Limitations |
|---|---|
| Precise property control | Moisture sensitivity |
| Broad formulation window | Higher cost than conventional polyols |
| Excellent mechanicals | Requires strict stoichiometry |
High hydroxyl polyol resins enable advanced polyurethane systems with tailored performance, particularly where enhanced crosslinking and durability are required. Their versatility continues to drive innovation in sustainable and high-performance material development.
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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