China Bottom price Castable Polyurethane Gel Insole Prepolymer - Donfoam 824PIR HFC-245fa base blend polyols for continuous PIR block foam – INOV Manufacturer and Supplier

Bottom price Castable Polyurethane Gel Insole Prepolymer - Donfoam 824PIR HFC-245fa base blend polyols for continuous PIR block foam – INOV

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Bottom price Castable Polyurethane Gel Insole Prepolymer - Donfoam 824PIR HFC-245fa base blend polyols for continuous PIR block foam – INOV Detail:

Donfoam 824PIR HFC-245fa base blend polyols for continuous PIR block foam

INTRODUCTION

DonFoam 824/PIR is a kind of blend polyols using hfc-245fa foaming agent, with polyol as the main raw material, mixed with special auxiliary agent, suitable for the insulation of construction, transportation, shell and other products. This material is specially developed for continuous line .The polyurethane product prepared by reacting it with isocyanate has the following advantages:

– Eco-friendly, without destroying the ozone layer

– High compressive strength and good homogeneity of isotropic strength

– Excellent thermal insulation performance and dimensional stability

PHYSICAL PROPERTY

DonFoam 824/PIR

Appearance

OH value mgKOH/g

Dynamic viscosity（25℃） mPa.S

Density （20℃） g/ml

Storage temperature ℃

Storage stability ※ months

Light yellow to brown transparent liquid

250-400

300-500

1.15-1.25

10-25

RECOMMENDED RATIO

Pbw

DonFoam824/PIR

Isocyanate

100

150-200

TECHNOLOGY AND REACTIVITY (the exact value varies depending on processing conditions)

Manual Mix

High pressure

Raw Material Temperature °C

Cream time S

Gel time S

Free density Kg/m³

20-25

20-50

160-300

40-50

20-25

15-45

140-260

40-50

FOAM PERFORMANCES

Overall Molding Density

Closed-cell Rate

Initial Thermal Conductivity（15℃）

Compressive Strength

Dimensional Stability 24h -20℃

24h 100℃

Flammability

GB/T 6343

GB/T 10799

GB/T 3399

GB/T 8813

GB/T 8811

GB/T 8624

≥40 Kg/m3

≥90%

≤22mW/m.k

≥150 KPa

≤0.5%

≤1.0%

B2、B1

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