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Good Quality Polyurethane Rigid Foam - Donspray 504 HFC-245fa base blend polyols – INOV

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  • Good Quality Polyurethane Rigid Foam - Donspray 504 HFC-245fa base blend polyols – INOV

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Good Quality Polyurethane Rigid Foam - 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.

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Good Quality Polyurethane Rigid Foam - Donspray 504 HFC-245fa base blend polyols – INOV detail pictures

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"Sincerity, Innovation, Rigorousness, and Efficiency" could be the persistent conception of our enterprise to the long-term to produce together with clients for mutual reciprocity and mutual profit for Good Quality Polyurethane Rigid Foam - Donspray 504 HFC-245fa base blend polyols – INOV , The product will supply to all over the world, such as: Brunei, Canberra, Vietnam, Due to our strict pursues in quality, and after-sale service, our product gets more and more popular around the world. Many clients came to visit our factory and place orders. And there are also many foreign friends who came for sight seeing, or entrust us to buy other stuff for them. You are most welcome to come to China, to our city and to our factory!

    • We are really happy to find such a manufacturer that ensuring product quality at the same time the price is very cheap.
    5 Stars By Constance from Colombia - 2017.12.31 14:53
    This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
    5 Stars By Elaine from Romania - 2018.02.04 14:13
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