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Product Details
Polyurethane Rubber

1:1 ratio Polyurethane Rubber

  • Key features:
    - Hardness: 25-80 Shore A
    - Mixing ratio: 1:1
    - Short demold time
    - Low viscosity & easy operation
    - Can work with accelerator
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Product Introduction

Application
1. Architectural reproduction & restoration
2. Concrete casting, sculpture & foundry
3. Millwork & ornamentation, candle making
4. Plaster millwork & ornamentation, and more
5. Industrial applications, crafts & hobby applications
Technical data
Item no. CPU-49-C102F CPU-49-C103A CPU-49-C104A CPU-49-C105A CPU-49-C106A CPU-49-C108A
Hardness (Shore A) 23 - 27 29 - 33 40 - 44 49 - 53 60 - 64 77 - 83
Viscosity of Part A (CPS) 1200 1200 1300 700 - 1300 2000 2500 - 3500
Viscosity of Part B (CPS) 3000 5500 3000 2500 - 3500 3000 2000 - 3000
Color of Part A Translucent Translucent Translucent Translucent Translucent Translucent
Color of Part B Creamy white White Creamy white Creamy white Creamy white Creamy white
Mixing ratio (by weight) 1 : 1 1 : 1 1 : 1 1 : 1 1 : 1 1 : 1
Pot life (min) 20 - 25 20 - 25 18 - 23 14 - 18 12 - 15 4 - 5
Demold time (hr) 12 - 14 12 - 14 12 - 14 16 - 18 16 - 18 7 - 9
*These items are provided as general information only. They are approximate values and are not considered part of the product specification.
** We can supply RTV silicone mold rubber.
Additive
CPU-49-CA5 (accelerator for polyurethane rubber) is an additive designed to accelerate the demold time of CPU-49-C102F-A/B / CPU-49-C103A-A/B / CPU-49-C104A-A/B / CPU-49-C105A-A/B / CPU-49-C106A-A/B polyurethane mold rubber series products without significantly affecting the ultimate physical properties. It also reduces the pot life and pour time for application.

Note that CPU-49-C108A-A/B has high reaction speed, short working and demold time. Accelerator CPU-49-CA5 is not needed.

The accelerator is added by weight to Part B and should be thoroughly mixed into Part B before adding Part A. After dispensing Part A and B into mixing container, mix thoroughly for at least 3 minutes.

Suggested ratio and effects:
Item no CPU-49-CA5 added by weight to Part ‘B’
(%)
Pot life time
(min)
Demold tome
(hours)
CPU-49-C102F-A/B 0.5
1
13 - 15
10 - 13
8
5
CPU-49-C103A-A/B 0.5
1
13 - 15
10 - 13
8
4
CPU-49-C104A-A/B 0.5
1
13 - 15
10 - 13
8
4
CPU-49-C105A-A/B 0.3
0.6
8 - 10
5 - 6
8
4
CPU-49-C106A-A/B 0.3
0.6
8 - 10
5 - 6
8
4
Limitation
Liquid urethanes are moisture sensitive and will absorb atmospheric moisture. Component A is a milky-white liquid at room temperature(25°C), but it will become waxy-like under 18°C. Material should be stored in dry condition and the temperature above 23°C.
Package
Part A: 20kg/drum
Part B: 20kg/drum
CPU-49-CA5: 1kg/pail
Taiwan PU Corporation is a professional polyurethane rubber manufacturer, polyurethane rubber producer. We supply high quality polyurethane rubber products, have an experienced technical team and offer the best price to polyurethane rubber.

Polyurethane rubber is called polyurethane rubber for mold, PU rubber for mold, PU rubber, cast polyurethane rubber, two-component polyurethane rubber, polyurethane mold rubber, polyurethane rubber material, polyurethane rubber system polyurethane rubber for concrete mold, polyurethane rubber for stamp mold, polyurethane rubber for sculpture. If polyurethane rubber is needed, please contact us.

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