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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
Compatibility with CAB381. aluminum orientation, weathering resistance, yellowing resistance, adhesion on ABS plastic, inter-layer adhesion with top PU clear coating.
Main Applications
Plastic coat
Low Hydroxyl Polyol Resins: Overview and Key Properties
| Category | Details |
|---|---|
| Chemical Type | Polyether or polyester polyol |
| Hydroxyl Value | 20–100 mg KOH/g |
| Functionality | 2–3 |
| Viscosity (25°C) | 500–10.000 mPa·s |
Key Characteristics
| Property | Typical Range |
|---|---|
| Molecular Weight | 2.000–8.000 g/mol |
| Acid Value | <1.0 mg KOH/g |
| Water Content | <0.05% |
| Glass Transition Temp. (Tg) | -70°C to +20°C |
Production Methods
| Process | Description |
|---|---|
| Polyether Route | Long-chain alkylene oxide polymerization |
| Polyester Route | High molecular weight diol/acid reaction |
| Caprolactone Based | Ring-opening polymerization |
Primary Applications
| Industry | Use Case | Key Benefit |
|---|---|---|
| Flexible Foams | Mattress, seating | Superior elasticity |
| Coatings | Flexible films | Excellent elongation |
| Adhesives | Pressure-sensitive | Permanent tack |
| Elastomers | Soft-touch components | Low compression set |
Formulation Guidelines
| Component | Role | Typical Ratio |
|---|---|---|
| Polyol Resin | Base polymer | 70–95% |
| Isocyanate | Curing agent | 5–30% |
| Plasticizers | Softness enhancer | 0–20% |
| Stabilizers | UV/heat protection | 0.5–3% |
Performance Advantages
| Feature | Impact |
|---|---|
| Low Crosslink Density | High elongation (>400%) |
| Inherent Flexibility | Shore 00–50A hardness |
| Moisture Resistance | Reduced hydrolysis risk |
Comparison with Other Polyols
| Parameter | Low-OH Polyol | Medium-OH Polyol | High-OH Polyol |
|---|---|---|---|
| Cure Speed | Slow | Moderate | Fast |
| Flexibility | Highest | Medium | Lowest |
| Cost | $ | $ | $$ |
Safety & Handling
| Aspect | Requirement |
|---|---|
| Storage | Dry, <30°C |
| VOC Content | <50 g/L |
| PPE | Minimal (low toxicity) |
Market Data
| Application | Market Share | Growth Rate |
|---|---|---|
| Flexible Foam | 60% | 4.0% CAGR |
| Coatings | 25% | 5.2% CAGR |
| Elastomers | 15% | 6.8% CAGR |
Key Benefits and Limitations
| Advantages | Limitations |
|---|---|
| Exceptional flexibility | Limited load-bearing capacity |
| Lower isocyanate demand | Longer demold times |
| Better hydrolysis resistance | Reduced chemical resistance |
Summary
Low hydroxyl polyol resins excel in applications requiring extreme flexibility and durability. Their long polymer chains enable superior elastic recovery, making them indispensable for comfort-focused products while maintaining cost efficiency.
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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