 |
| Place of Origin: | Shandong, China |
| Brand Name: | Exceedchem |
| Certification: | ISO9001, SGS |
| Model Number: | EX-500 |
| Minimum Order Quantity: | 1000kg |
|---|---|
| Price: | USD1.00/kg-USD6.00/kg |
| Packaging Details: | 20kg/drum;200kg/drum |
| Delivery Time: | within two weeks after confirming the order |
| Payment Terms: | T/T, L/C at sight |
| Supply Ability: | 100mt per month |
Rigid Spray Polyurethane Foam Systems for Wall
1. Introduction
This is spray blend polyols. It reacts with isocyanate to produce foam which has excellent performances, which are as follows.
● Fine and uniformity cells.
● Low thermal conductivity.
● Perfect flame resistance
● Good low temperature dimensional stability.
It applies to all kinds of thermal insulation engineering which use the spray technology, such as cold rooms, pots, large-scale pipelines and construction metope etc.
2. Physical property
|
No. |
Item |
Specification |
|
1 |
Appearance |
Light yellow to brown yellow transparent liquid |
|
2 |
Hydroxyl value, mgKOH/g |
310-380 |
|
3 |
Dynamic viscosity (25℃) mpa.s |
100-200 |
|
4 |
Specific gravity (20℃) g/ml |
1.12-1.20 |
|
5 |
Storage temperature, ℃ |
10-25 |
|
6 |
Storage stability, month |
6 |
3. Recommended ratio
|
Item |
pbw |
|
Blend polyols |
100 |
|
Isocyanate |
100-105 |
4. Products reactivity
The temperature of component is 20℃, the actual value is varied according to pipe diameter and processing condition.
|
No. |
Item |
Specification |
|
1 |
Cream time, s |
3-5 |
|
2 |
Gel time, s |
6-10 |
5. Foam performance
|
No. |
Item |
Standard |
Specification |
|
1 |
Spray density |
GB 6343 |
≥35kg/m3 |
|
2 |
Closed-cell rate |
GB 10799 |
≥90% |
|
3 |
Initial Thermal conductivity (15℃) |
GB 3399 |
≤24m W/ (m.K) |
|
4 |
Compressive strength |
GB/T8813 |
≥150kPa |
|
5 |
Elongation at break |
GB/T9641 |
≥10% |
|
6 |
Adhesive strength |
GB/T16777 |
≥120kPa |
|
7 |
Dimensional stability (24h,-20℃); (24h, 70℃) |
GB/T8811 |
≤1.0%; ≤1.5% |
|
8 |
Water absorption |
GB 8810 |
≤3% |
|
9 |
Oxygen index |
GB 8624 |
≥26 |
The data provided above are typical value, which are tested by our company. For our company’s products, the data included in the law do not have any constraints.
