5.1. Quick Demould Rigid Polyurethane Foam Formulated System Blend Polyether Polyol for Freezer Insulation

• Customization: Available
• Molecular Principal Chain: Naphthenic Polymer
• Color: Brown
• Model NO.: LY-1024W1
• Appearance: Light Yellow Transparent Viscous Liquid
• Hydroxyl Value Mgkoh/G: 350-450
• Dynamic Viscosity (25℃) MPa.S: 3500-4500
• Density (20℃) G/Ml: 1.1±0.02
• Storage Temperature ℃: 10-25
• Transport Package: Steel Drum/IBC Drum/Tank
• Specification: pure
• Trademark: G-TECH@
• Origin: China
• Production Capacity: 50000mt/Year
• Package Size: 60.00cm * 60.00cm * 102.00cm
• Package Gross Weight: 218.000kg

Product Description

Chemical Name:
polyol blend,system polyol or combined polyol

Simple introduction (product features)
1)excellent flowability
2)foam density distribute uniformity                              
3)low thermal conductivity                                                                       
4)excellent low temperature dimensional stability

1.General description
LY-1024W is a semi resin premix combined polyol, based on polyether polyol, formulated with catalyst,blowing agent,stabilizing agents and other additves(if necessary) according to a parameter.It is a fully formulated polyether polyol developed for the rigid insulation of refrigerators and freezers. Blowing is provided with C-pentane.It is the mixture of polyol.

2.Technical Quality Conditions:

2.1 Physical characteristics(without c-pentane)
                                                                                              
Item                            Unit                    Index
                                                                                              
Appearance                     light yellow transparent liquid
Viscosity           25ºC,mPa.S              3500-4500
Hydroxy Value       mgKOH/g                350-450
Specific gravity         25ºC                 1.05-1.10
                                                                                               

2.2 Physical characteristics(with c-pentane)
                                                                                               
Item                           Unit                    Index
                                                                                               
Appearance                     light yellow transparent liquid
Viscosity           25ºC,mPa.S              700-900
Specific gravity        25ºC                  1.05-1.10
                                                                                               
2.3 Process and reactive characteristics( actual value varied depends on the processing conditions)

2.3.1 Foaming condition

2.3.1.1 Manual mixing
Component temperature:20-25ºC
Mixing speed:5000rpm/8 sec

2.3.1.2 Machine
Mold temperature:35-40ºC
Component temperature: 20-25ºC

2.4 Recommended ratio:

Component	Part by weight	Remark
Blend polyol	100
C-pentane	12-13
Isocynate	134.4-135.6	P/M=100/120

2.5 Foam characteristics

ITEM		PROPERTY
Density(kg/m3)	Core	>=35
Thermal Conductivity (10ºC) W/m.k		≤0.022
Closed cell rate (%)		>=90
Compressive strength(10%),kpa		150
Dimensional stability(%)	Low temperature (-30ºC,24hs)	1.0
	High temperature (70ºC,relative humidity95%±5%,24hs)	1.5

3. Main Applications:
rigid PU foam cores for insulation of refrigerators and freezers in combination with isocyanate (MDI).

4.Packing and storage:
The product is delivered in 200 liters clean, dry and tightly sealed metal sheet drums, cubitanks,
stainless steel railway labeled with the product's name, batch number, manufacturing date, net
weight, producer's name.The product is stored in genuine packing, in covered areas, cold, dry, vented areas, in tightly closed containers under nitrogen blanket, far from heat, moisture and inconsistent materials, at temperatures between 20ºC and 25ºC.The recommended shelf life is 6 months.

5.Safety Considerations:
Before handling and using of product, the personnel must be aware of the dangers implied. This
information is on the product label.

6.Attention:
Please contact G-TECH to see if the document has been revised and for any other additional
information related to the product.