8.3 Water Blown Rigid PU Polyurethane Foam System for Pipe Shell Insulation

• Customization: Available
• Color: Brown
• Density, g/cm3 (20ºC): 1.08
• Model NO.: LYPipe-3181
• Viscosity, MPa S (25ºC): 1700
• Closed Cell Content: 90%
• Compressive Strength (10% Deformation): ≥120 Kpa
• 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

Blend Polyol LYPipe-3181 Series for Pipe Shell Insulation

LYPipe 3181/shell is a two-components closed-cell polyurethane foam system. This product is water based system. It can be applied to pipe shell thermal insulation. 
Physical Properties

Items	Units	Specifications	Isocyanate
Appearance		Light yellow transparent liquid	Brown liquid
Viscosity,25ºC	mPa.s	600-1000	150-250
Specific gravity,20ºC	g/ml	1.10±0.05	1.24±0.01

Reaction Performance(by hands)

Items	Units	Specifications
LYPipe 3181/shell	g	100
Isocyanate	g	140-160

Foam Performances

Items	Units	Specifications	Test Standard
Density	Kg/m^3	≥50	ASTM D1622
Compressive strength	kPa	≥200	ASTM D1621
Tensile strength	kPa	≥300	ISO 1926:2009
Thermal conductivity,20ºC	W/(m.k)	≤0.028	ASTM C518
Closed cell content	%	≥90	ASTM D2856
Dimensional Stability,-20ºC*24h            70ºC*90%RH*24h	%	≤2	ASTM D2126

The above testing data have been generated in lab or field conditions which are typical for this application. They are believed to be correct but data variations due to varying processing or ambient conditions can not be excluded. The customer remains responsible for making his own interpretation of data and suitability of the chemicals to his particular operation.

Handling and Storage
LYPipe 3181/shell should be protected from moisture by keeping containers sealed when not in use. Drums have to be stored indoors to protect the material from water ingress, frost and direct heat from the sun. Under temperature conditions and in properly sealed containers ,the storage life of the polyol is 6 months.
The optimum storage temperature should be 10-30ºC.