Panel Specification

DYD – Polyurethane Insulated Panel Technical Specifications and Data

Technical Advantages and technical specifications to be used

Core	Polyurethane (P.U.) Foam
Density	40 ±kg/cu. M
Blowing Agent	HCFC 141b until 2015, Cyclo-Pentane
Skin ; Plain or Corrugated type	1) Polyester Resin Coated G.L. (Galvalume) and G.I. (Galvanized Iron) 2) PVDF 3) Plastisol (PVC) 4) ABS sheets with 1.5 mm and 2.0mm Thickness 5) Stainless steel 304 Aluminum, Cement boards are available by requirements
Thermal Conductivity	0.1016 k Cal / m h ºC
Effective Width	900 mm W and 1200 mm W
Length	Small Bed = 900/1200 mm W x 3,500 mm L
	Medium Bed = 900/1200 mm W x 6800 mm L
	Large Bed = 1200 mm W x 11.700mm L
End Connection	Tounge and groove / plain

-Plain type skin and Corrugation type skin connection with Tongue & groove (male and female)

-Corner wall (using for IQF freezers and Cell site cabin only) and Cam-lock fastener connection

Wall to wall, ceiling to ceiling panel connection with cam-lock fastener type – Male & Female (above 75 mm thickness panel, industrial size, depending on Customer’s request with or without)
Standard cam-lock spacing at the panel length ; above 2.6 m L panel = 1.5 m between cam-locks – Typical Customized WALK-IN Chiller / Freezer (for Commercial and Small scale application)

* Calculation formula of Thermal Resistance (R-Value)

R-Value : 1/8(inner skin) +( )mm/1000/0.018 +1/20(outer skin) = ( ) m2 hr ºC/k cal

<Table for P.U. panel R-Value by Thickness

Thickness of Panel		Thermal Resistance Value (R-Value)
Inches	MM	Thermal Resistance Value (R-Value)
2	50	2.95 m2 hr ºC/k cal
3	75	4.34 m2 hr ºC/k cal
4	100	5.73 m2 hr ºC/k cal
5	125	7.12 m2 hr ºC/k cal
6	150	8.51 m2 hr ºC/k cal
8	200	11.28 m2 hr ºC/k cal

Thickness (mm)	U-Value (W/m2)	Weight Kg/m2	Ceiling element Span, cantilever as single span	Outside walls, bolts distance, Single span system wall height (m)
Thickness (mm)	U-Value (W/m2)	Weight Kg/m2	Ceiling element Span, cantilever as single span	Up to 8 m	Above 8 m
50	0.49	10.41	4.00	3.25	2.50
75	0.37	11.67	5.75	4.75	3.75
100	0.24	12.42	7.00	5.5	5.00
125	0.2025	13.3	8.125	6.13	5.56
150	0.16	14.45	9.00	7.00	6.00
200	0.12	16.42	10.00	7.50	6.50

Top coating of coil on the base steel substrate to be suitable for food processing purpose interior/exterior application
- PPGL – Pre-painted by polyester/ silicon polyester resin and aluminium/zinc alloy plated Galvalume
- PPGI – Pre-painted by polyester /silicon polyester resin Galvanized zinc plate Iron
- PVDF – Pre-painted by polyvinylidene Fluoride Galvalume or Galvanized Iron
- PVC Plastisol – Pre-painted by PVC Plastisol (100 to 200 ㎛ paint) GL or GI
ABS (Acrylonitrile Butadiene Styrene – Synthetic Thermoplastic Polymer)skin

Stainless Steel 304 skin – 0.5 to 0.8 mm Thickness, for Food Grade – Hygiene and , No-rusting purpose application

Outline of Characteristics of Polyurethane rigid Foam
- Polyurethane rigid foam consists of two main chemicals, mixing with blowing agent
  - Main chemical A – Isocyanate (MDI)
  - Main Chemical B – Polyol with various catalysts pre-mixed
  - Blowing agent (Cyclo-Pentane, R-141B until phase out in year 2015)
- Polyurethane rigid foam is composed of independent closed fine cells by 90 -95% which provides the lowest “K” and highest “R” factors – lowest thermal conductivity.
  - Lowest thermal conductivity and best thermal stability
  - Light weight and high strength to weight ratio insulated material
  - Most energy and cost efficient insulation martial currently available
  - Excellent adhesion to most substrate materials
- Thanks to the unique characteristics of Polyurethane rigid foam is for ideal application of cold storages, freezers, and various and wide range of temperature control facilities.
Properties of Polyurethane rigid foam