* CPU-69-A/B

* CPU-66-A/B
CPU-69-A/B
Product properties
Mixing ratio (Weight) 100/26 100/28 100/30 100/32 100/36 100/40 100/42
Hhardness (Shore A) 58 60 66 70 83 86 88
Tensile strength kg/cm2 19 46 87 70 148 147 155
Elongation% 350 550 425 300 250 225 225
Tear strength kg/cm2 20 25 24 22 31 36 37
Precautionary measures
sufficient fresh air must be supplied to the working area, safety glasses and protective gloves should de worn when handing the components. Contact with skin must be avoided.
Splashes on the skin should be removed with soap and water. In the event of contact with eye, it should be immediately rinsed with abundant amounts of water. In any case . A doctor should be consulted.
Packing
A component (CPU-69-A) : 18kg in 5 gal blue drum
B component (CPU-69-B) : 20kg in 5 gal red drum
Storage
The components are sensitive to moisture. They must therefore be stored in tightly closed containers. Moisture absorption by the B component will cause the formation of insoluble aggregate such as skin development.
If the prescribed storage temperature of 20±4oC is adhered to the shelf is six months.
The information and data contained herein are believed to be correct. However no liability is accept we preserve the right of revision for this information sheet.
CPU-69-A\B
Curing under room temperature. Short working and curing time, Good transparency and the color can be adjusted by adding coloring material.
Material specification
CPU-69-A : consists polyether polyols and other additives.
CPU-69-B : Isocyanate prepolymer
Material Properties
Properties/product names : CPU-69-A CPU-69-B
Color : Brown/yellowish Clear liquid Slightly yellowish or colorless clear Liquid
Viscosity cps/40 oC : 600 ± 200 300 ± 100
Specific gravity : 1.07 ± 0.02 1.10 ± 0.02
       
Molding condition
Properties/Product names : CPU-69-A CPU-69-B
Material Temperature oC : 30-50 30-50
Vacuuming time : 60min 30min
Mold Temperature oC : 30-50 30-50

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CPU-66-A/B
System Description

Two-component Polyurethane System for the Production of Elastomer for mould that has good physical property. This system doesn't contain MOCA, has low free TDI, which are suitable for traditional hand mixing operation.

A- component, Polyol-Component (CPU-66-A) :Mixture of PPG, stabilizers, catalysts.

B- component, lsocyanate component (CPU-66-B):TDI based Prepolymer

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System Specification
Trade mark CPU-66-A CPU-66-B
Appearance light liquid yellowish liquid
Viscosity cps, 30 oC 200±100

7500-10000

Package
CPU-66-A
Net weight 200Kg / 18Kg blue metal drum/can
CPU-66-B
Net weight 200Kg / 20Kg red metal drum/can

Processing

Preventing the air bubble from forming in the finished product, it's better that CPU-66-A / CPU-66-B would be taken vacuum treatment under pressure of 0-2 mmHg for 60minutes before mixing. A component and B component must be mixed enough, otherwise bad physical property would happen.

Processing parameters
Material temperature/ oC :
25-35
Pot life, 30oC /minutes :
8-10
Take free time, 30oC /minutes :
30-40
Demold time :
After 3 hours

 

Product characteristic
CPU-66-A percent by weight :
24
CPU-66-B percent by weight :
100
Hardness (shore A) :
75
Tensile strength/Kg.cm-2 :
min.80
Elongation / % :
min.200
Storage

The components are sensitive to moisture and should therefore be kept in sealed drums at all times. Storage temperatures should be 10 -35oC .Shelf life is 6 months.

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Notice: These values are based on the test of our present laboratory test specimens.