China Hot-selling Donboiler 214 Hfc-245fa Base Blend Polyols - Donspray 504 HFC-245fa base blend polyols – INOV Manufacturer and Supplier

Hot-selling Donboiler 214 Hfc-245fa Base Blend Polyols - Donspray 504 HFC-245fa base blend polyols – INOV

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Hot-selling Donboiler 214 Hfc-245fa Base Blend Polyols - 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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