China High reputation Castable Polyurethane Shoe Mould Prepolymer - Donspray 504 HFC-245fa base blend polyols – INOV Manufacturer and Supplier

High reputation Castable Polyurethane Shoe Mould Prepolymer - Donspray 504 HFC-245fa base blend polyols – INOV

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We have our own sales team, design team, technical team, QC team and package team. We have strict quality control procedures for each process. Also, all of our workers are experienced in printing field for Cyclopentane, Ms Sealant 930, Two-Component Polyurea, Any interest, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.

High reputation Castable Polyurethane Shoe Mould Prepolymer - 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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As a way to ideal meet up with client's desires, all of our operations are strictly performed in line with our motto "High Top quality, Competitive Cost, Fast Service" for High reputation Castable Polyurethane Shoe Mould Prepolymer - Donspray 504 HFC-245fa base blend polyols – INOV , The product will supply to all over the world, such as: Milan, Oman, Bahamas, With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in beauty and other industries. Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs.

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