Hot New Products Casting Polyurethane Series Cpu - Donspray 504 HFC-245fa base blend polyols – INOV
Hot New Products Casting Polyurethane Series Cpu - Donspray 504 HFC-245fa base blend polyols – INOV Detail:
Donspray 504 HFC-245fa base blend polyols
INTRODUCTION
DonSpray504 is spray blend polyols, blowing agent is 245fa instead of HCFC-141B, it reacts with isocyanate to produce foam which has excellent performances, which are as follows,
1) fine and uniformity cells
2) low thermal conductivity
3) perfect flame resistance
4) good low-temperature dimensional stability.
It applies to all kinds of thermal insulation engineering which uses the spray technology, such as cold rooms, pots, large-scale pipelines and construction metope etc.
PHYSICAL PROPERTY
| Appearance |
Pale yellow to brown viscous liquid |
| Hydroxyl Value mgKOH/g |
200-300 |
| Dynamic viscosity（25℃） mPa.S |
100-200 |
| Specific gravity (20 ℃ ) g/ml |
1.12-1.20 |
| Storage temperature ℃ |
10-25 |
| Storage stability month |
6 |
RECOMMENDED RATIO
| Raw materials |
pbw |
| DonSpray 504 blend polyols |
100 g |
| Isocyanate MDI |
100-105g |
Reactivity Characteristics (The temperature of the system is 20℃,and the exact value varied depending on processing condition)
| Cream Time s |
3-5 |
|
Gel Time s |
6-10 |
FOAM PERFORMANCES
| Items |
Metric Unit |
Imperial Unit |
||
| Spray Density | GB 6343 | ≥35kg/m3 | ASTM D 1622 | ≥2.18 lb/ft3 |
| Closed-cell Rate | GB 10799 | ≥90% | ASTM D 1940 | ≥90% |
| Initial Thermal Conductivity（15℃） | GB 3399 | ≤24mW/(m.K) | ASTM C 518 | ≥2.16/inch |
| Compressive Strength | GB/T8813 | ≥150kPa | ASTM D 1621 | ≥21.76PSI |
| Adhesive Strength | GB/T16777 | ≥120kPa | ASTM D 1623 | ≥17.40PSI |
| Dimentional Stability 24h -20℃ | GB/T8811 | ≤1% | ASTM D 2126 | ≤1% |
| 24h 70℃ | ≤1.5% | ≤1.5% | ||
| Water Absorption | GB 8810 | ≤3% | ASTM E 96 | ≤3% |
| Fire Resistance | GB 8624 | Class B2 | ASTM D2863-13 | Class B2 |
PACKAGE
220kg/drum or 1000kg/IBC, 20,000kg/flexi tank or ISO Tank.
Product detail pictures:
Related Product Guide:
Our products are broadly regarded and reliable by end users and can meet up with constantly transforming financial and social requires of Hot New Products Casting Polyurethane Series Cpu - Donspray 504 HFC-245fa base blend polyols – INOV , The product will supply to all over the world, such as: Angola, Nepal, US, Our company considers that selling is not only to gain profit but also popularize the culture of our company to the world. So we are working hard to give you the wholehearted service and willing to give you the most competitive price in the market
By Jason from Swedish - 2018.09.29 13:24
Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
By Linda from Rwanda - 2018.06.30 17:29
