Rigid Polyurethane Foam Continous Process Panel Polyol and Isocyanate for Large Scale Cold Room

• Customization: Available
• Molecular Principal Chain: Naphthenic Polymer
• Color: Brown
• Model NO.: LYR1795
• Appearance: Light Yellow Transparent Viscous Liquid
• Hydroxyl Value Mgkoh/G: 350-450
• Dynamic Viscosity (25℃) MPa.S: 180-260
• 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

PRODUCT DESCRIPTION
LYR1795  is  a  fully  blended  system including HCFC141b  and  a  fire  retardant.  It  is designed
for processing  using a  continuous  lamination machine.  Moulded densities  will  be 35-40  kg/m³.
This system is designed to meet DIN 4102 Class B2.

 

CHEMICAL PROPERTIES
LYR1795 A(Polyol Blend)

Appearance	Brown Liquid
Specific Gravity @25°C	1.19 - 1.21
Viscosity @25°C	180 - 260 mPas

LYR1795B (Isocyanate)

Appearance	Dark Brown Liquid
Specific Gravity @25°C	1.22 - 1.26
Viscosity @25°C	150 - 250 mPas

TYPICAL REACTION DATA
Laboratory

Mixing Ratio (A : B)	/
Chemical Temperatures (°C)	/
Cream Time (s)	/
Gel Time (s)	/
Free Rise Core Density (kg/m )3	/

TYPICAL PHYSICAL PROPERTIES

Property	Test Standard	Unit	Value
Overall Moulded Density	-	kg/m3	40
Core Density	-	kg/m3	36
Compressive Strength - Parallel - Perpendicular	ASTM D1621	kPa	202 186
Dimensional Stability 48 hours exposure @ -15°C @100°C	ASTM D2126	% volume change	0.1 2.6
Thermal Conductivity	ASTM C518	W/m°C	0.0194

 

STORAGE OF MATERIALS
The  materials  are  sensitive  to  humidity  and  partially  used  drums  should  be  tightly  sealed  to
prevent the ingress of moisture.

 

LYR1795A (Polyol Blend)
The  Polyol blend has a  shelf life of three  months from  date of manufacture when stored indoors
at temperatures of 20-30°C.  The Polyol blend should be thoroughly mixed before use.

LYR1795B (Isocyanate)
The  Isocyanate  has  a  shelf  life  of  one  year  from  date  of  manufacture  when  stored  indoors  at
temperatures  of  20-30°C.  Avoid  storage  temperatures  of  below  0°C  (as  some  crystallization
may occur) or above 50°C (as formation of insoluble so lids may occur).