2019 wholesale price Castable Polyurethane Prepolymer - Donboiler 212 HCFC-141B base blend polyols – INOV

Donboiler 212 HCFC-141B base blend polyols

INTRODUCTION

Donboiler212 is the blend polyether polyol consisted of polyols, catalyst, blowing agent and other additives. It can react with isocyanate to form rigid polyurethane foam with excellent thermal insulation property.

TYPICAL PROPERTY

Appearance

Brown-yellow transparent viscous liquid

Hydroxyl value  mgKOH/g

300-400

Viscosity       25℃ , mPa·s

300-500

Density        20℃ , g/cm3

1.05-1.15

RECOMMENDED RATIO

 

pbw

Donboiler 212 blend polyol

100

Isocyanate

120±5

Material temperature

22±2 ℃

REACTION CHARACTERISTICS

 

Manual Mixing

High Pressure Machine Mixing

Cream Time   s

10±2

7±2

Gel time      s

55±3

40-50

Tack free time  s

70-90

50-70

Free density  kg/m3

26.5-27.5

25.5-27

FOAM PERFORMANCES

Moulding Density

Kg/m3

≥35

Closed-cell rate

%

≥95

Thermal Conductivity  (10℃)

W/m.k

≤0.02

Compressive strength

KPa

≥120

Dimensional stability   24h -30℃

%

≤0.5

24h 100℃

%

≤0.5

PACKAGE

220kg/drum or 1000kg/IBC, 20,000kg/flexi tank or ISO Tank.