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XF-2412; XF-2020; XF-235; XF-2402N; XF-2002; XF-2007; XF-235P;
Rigid Foam Polyester Polyol for PIR (Polyisocyanurate) Panels is a specialized polyester-based polyol designed to achieve high isocyanurate content, excellent fire resistance, and thermal insulation performance required for PIR sandwich panels and insulation boards.
Below is a technical overview tailored for PIR panel applications:
A polyester polyol for PIR panels should provide:
High functionality & aromatic content → promotes isocyanurate formation
Low hydroxyl value range (typically 180–260 mgKOH/g)
Good compatibility with polymeric MDI (pMDI)
Excellent fire performance (low flame spread, low smoke)
Low viscosity for continuous panel lines
Good dimensional stability and low friability
| Property | Typical Range |
|---|---|
| Chemical type | Aromatic polyester polyol |
| OH value | 200–240 mgKOH/g |
| Functionality | 2.2–3.0 |
| Viscosity (25 °C) | 3,000–8,000 mPa·s |
| Acid value | ≤ 2.0 mgKOH/g |
| Water content | ≤ 0.2% |
| Appearance | Dark brown to amber liquid |
High aromatic content enhances char formation
Supports high PIR index (200–300+)
Helps meet B-s1,d0 / Class B fire ratings (depending on system design)
Produces fine, closed-cell structure
Typical thermal conductivity (λ): ≤ 0.022 W/m·K
Compatible with pentane foaming systems (n-pentane / cyclopentane)
High compressive strength
Excellent adhesion to steel facings
Low friability and good edge quality
Polyol blend (pbw):
Polyester polyol: 100
Blowing agent (pentane): 10–18
Flame retardant (TCPP / TCEP / non-halogen): 10–20
Catalyst (PIR trimerization + gelling): 2–4
Silicone surfactant: 1.5–2.5
Isocyanate:
Polymeric MDI
PIR index: 220–300
PIR sandwich panels (roof, wall, cold room panels)
Continuous panel lines
High fire-performance insulation boards
Industrial & commercial building envelopes
| Item | Polyester Polyol | Polyether Polyol |
|---|---|---|
| Fire resistance | ⭐⭐⭐⭐ | ⭐⭐ |
| Dimensional stability | Excellent | Good |
| Adhesion to metal | Excellent | Moderate |
| Cost | Competitive | Higher |
| Hydrolysis resistance | Moderate | Excellent |
Depending on your panel line and target standards, polyester polyols can be tailored for:
Low viscosity for high-speed lines
Enhanced pentane solubility
Improved flowability & surface finish
Optimized reactivity profile
8. Parameters
| Product Model | Hydroxyl value (mgKOH/g) | Acid Value (mgKOH/g) | Moisture (%) | Viscosity (CPS 25℃) |
| XF-2412 | 260±10 | ≤1.5 | ≤0.1 | 8000+1500 |
| XF-2020 | 200±10 | ≤1.5 | ≤0.1 | 7000±1000 |
| XF-235 | 230-245 | ≤2.0 | ≤0.15 | 10500±1500 |
| XF-2002 | 195±5 | ≤1.0 | ≤0.1 | 10000-30000 |
| XF-2007 | 200±10 | ≤2.0 | ≤0.1 | 15000±3000 |
| XF-235P | 235±15 | ≤2.0 | ≤0.15 | ＜3500 |
| XF-2402N | 240±10 | ≤1.5 | ≤0.1 | 8000±1500 |
Rigid Foam Polyester Polyol for PIR (Polyisocyanurate) Panels is a specialized polyester-based polyol designed to achieve high isocyanurate content, excellent fire resistance, and thermal insulation performance required for PIR sandwich panels and insulation boards.
Below is a technical overview tailored for PIR panel applications:
A polyester polyol for PIR panels should provide:
High functionality & aromatic content → promotes isocyanurate formation
Low hydroxyl value range (typically 180–260 mgKOH/g)
Good compatibility with polymeric MDI (pMDI)
Excellent fire performance (low flame spread, low smoke)
Low viscosity for continuous panel lines
Good dimensional stability and low friability
| Property | Typical Range |
|---|---|
| Chemical type | Aromatic polyester polyol |
| OH value | 200–240 mgKOH/g |
| Functionality | 2.2–3.0 |
| Viscosity (25 °C) | 3,000–8,000 mPa·s |
| Acid value | ≤ 2.0 mgKOH/g |
| Water content | ≤ 0.2% |
| Appearance | Dark brown to amber liquid |
High aromatic content enhances char formation
Supports high PIR index (200–300+)
Helps meet B-s1,d0 / Class B fire ratings (depending on system design)
Produces fine, closed-cell structure
Typical thermal conductivity (λ): ≤ 0.022 W/m·K
Compatible with pentane foaming systems (n-pentane / cyclopentane)
High compressive strength
Excellent adhesion to steel facings
Low friability and good edge quality
Polyol blend (pbw):
Polyester polyol: 100
Blowing agent (pentane): 10–18
Flame retardant (TCPP / TCEP / non-halogen): 10–20
Catalyst (PIR trimerization + gelling): 2–4
Silicone surfactant: 1.5–2.5
Isocyanate:
Polymeric MDI
PIR index: 220–300
PIR sandwich panels (roof, wall, cold room panels)
Continuous panel lines
High fire-performance insulation boards
Industrial & commercial building envelopes
| Item | Polyester Polyol | Polyether Polyol |
|---|---|---|
| Fire resistance | ⭐⭐⭐⭐ | ⭐⭐ |
| Dimensional stability | Excellent | Good |
| Adhesion to metal | Excellent | Moderate |
| Cost | Competitive | Higher |
| Hydrolysis resistance | Moderate | Excellent |
Depending on your panel line and target standards, polyester polyols can be tailored for:
Low viscosity for high-speed lines
Enhanced pentane solubility
Improved flowability & surface finish
Optimized reactivity profile
8. Parameters
| Product Model | Hydroxyl value (mgKOH/g) | Acid Value (mgKOH/g) | Moisture (%) | Viscosity (CPS 25℃) |
| XF-2412 | 260±10 | ≤1.5 | ≤0.1 | 8000+1500 |
| XF-2020 | 200±10 | ≤1.5 | ≤0.1 | 7000±1000 |
| XF-235 | 230-245 | ≤2.0 | ≤0.15 | 10500±1500 |
| XF-2002 | 195±5 | ≤1.0 | ≤0.1 | 10000-30000 |
| XF-2007 | 200±10 | ≤2.0 | ≤0.1 | 15000±3000 |
| XF-235P | 235±15 | ≤2.0 | ≤0.15 | ＜3500 |
| XF-2402N | 240±10 | ≤1.5 | ≤0.1 | 8000±1500 |
