PU Foam For High-efficiency Automotive Air Filters
Product Specifications
| Attribute |
Value |
| Application |
Automotive air filter |
| Mixing Ratio |
Polyol-A/ISO-B=100:(25-30) |
| Appearance (A) |
Milky viscous liquid |
| Appearance (B) |
Brown Liquid |
| Packing |
200KG/DRUM |
| Shelf Life |
6 months |
Product Description
POLYOL-A is a blend polyol combining hyperactive polyether polyols, cross-linking agent, and compound catalyst. ISO-B is a modified isocyanate that forms a micro-pore elastomer through cold molding. This combination delivers excellent mechanical and anti-fatigue properties with short production cycles and high efficiency, making it ideal for automotive and motorcycle air filters.
Typical Properties
| Property |
Polyol-A |
ISO-B |
| Appearance |
Milky viscous liquid |
Brown Liquid |
| Viscosity (25℃)/(mPa*s) |
600-1000 |
75-125 |
| Density (20℃)/(g/ml) |
1.00-1.10 |
1.10-1.20 |
| Storage Temperature (℃) |
15-25 |
15-25 |
| Shelf Life (months) |
6 |
6 |
The material should be protected from moisture contamination under recommended temperature. ISO-B should be filled with nitrogen gas and sealed if not used completely.
Reactive Properties
| Unit |
By manual |
By machine |
| Polyol-A/ISO-B |
100/(25-30) |
100/(25-30) |
| Cream time (s) |
20-30 |
18-28 |
| Gel time (s) |
50-60 |
45-55 |
| Mold Temperature (℃) |
35-55 |
35-55 |
| Demolding time (min) |
5-8 |
5-8 |
| FRD (Kg/m3) |
500-600 |
450-550 |
Physical Properties
| Unit |
Index |
| Hardness (shore A) |
30-50 |
| Density (Kg/m3) |
700-800 |
| Tensile strength (mPa) |
≥0.5 |
| Elongation at break (%) |
≥90 |
| Right-angled Tearing Strength (kN/m) |
≥2.7 |
Storage and Transportation
The product is packed in galvanized steel drums with a net weight of 200kg. Store in a well-ventilated, cool, dry place away from direct sunlight, rain, water, and heat sources.