China Hot New Products Casting Polyurethane Series Cpu - Donspray 504 HFC-245fa base blend polyols – INOV Manufacturer and Supplier

Hot New Products Casting Polyurethane Series Cpu - Donspray 504 HFC-245fa base blend polyols – INOV

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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.

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We attempt for excellence, support the customers", hopes to become the top cooperation team and dominator enterprise for staff, suppliers and shoppers, realizes worth share and continual marketing for 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: Algeria, Porto, Durban, What is good price? We provide customers with factory price. In the premise of good quality, efficiency must be paid attention to and maintain appropriate low and healthy profits. What is a fast delivery? We make the delivery according to customers' requirements. Although delivery time depends on the order quantity and the complexity of it, we still try to supply products in time. Sincerely hope we could have long term business relationship.

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