Condensation Cured - Silicones
Ultrasil®
Ultrasil is a general purpose, fast set Silicone. It is a two component, tin catalysed RTV silicone rubber, designed as a 25 Shore A Soft grade material with high extensibility & mechanical strength.Ultrasil has a Blue coloured catalyst to make processing easier by showing when the two components are thoroughly mixed.
| Consistency | Pourable Blue |
| Mix Ratio | 100/10 |
| Viscosity (mPa s) | 45 000 |
| Hardness (Shore A) | 25 |
Size: 550gm, 1.1kg, 5.5kg
Data Sheet - MSDS Part A - MSDS Part B
Maximold - Discontinued
for a similar hardness silicone see M4642 Addition cured silicone
MAXIMOLD is a high performance, two component, tin catalysed RTV silicone rubber. It is designed as a 37 Shore A, giving a firmer, medium viscosity rubber providing excellent physical properties. Maximould displays good dimensional stability, low linear shrinkage and features a coloured catalyst to ensure thorough mixing. It is ideal for larger molds where a higher degree of self-support is required. Also recommended for two part or other matrix molds.
Ideal for -
- Multi-Purpose Moldmaking
- Two part or matrix molds
- Polyester, Polyurethane & Plaster Casting
- Large Rock & Garden Art Molds
Size: 550gm, 1.1kg, 5.5kg
Data Sheet - MSDS Part A - MSDS Part B
ELASTOSIL® M RTV-2 Silicone Rubber
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| Prototype |
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| Masterpiece |
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| Day to day |
The flexible mould-making material for perfect copies.
With ELASTOSIL® M silicone rubbers,Wacker-Chemie offers a great variety of customised moulding solutions for the mould and tool making sectors.
ELASTOSIL® M includes a wide selection of addition-curing grades for moulds used in vacuum casting processes.
Wacker M4503
General purpose grade. Soft, high extensibility & mechanical strength.
Pourable, condensation-curing, two component silicone rubber that cures at room temperature and features:
• Good Flow
• Low Shore A Hardness (approx 25)
• High Tear Strength
• Great extensibility and elasticity
• Excellent long term stability of the mechanical properties of the cured rubber
• High resistance to casting resins, particularly polyester
APPLICATIONS
Due to the excellent mechanical properties of the cured rubber as well as its high resistance to casting resin, ELASTOSIL® M4503 is especially suitable for reproducing models with pronounced undercuts in casting resins.
Other materials, such as wax and plaster, may be cast without any problems in molds made from M4503.Skin Molds.
PROCESSING
With 5% wt Catalyst T35 - 90min Pot Life - 15-20Hr curing time.
| Consistency | Pourable White |
| Mix Ratio | 100/5 |
| Viscosity (mPa s) | 40 000 |
| Hardness (Shore A) | 25 |
Size: 525gm, 1.05kg, 5.25kg
Data Sheet - MSDS 4503
MSDS Catalyst T35
MSDS Catalyst T37
Soft Translucent Silicone
Very soft, high strength silicone. Designed for use in soft parts & animatronic skins. Can be pigmented & painted.
| Consistency | Pourable Translucent |
| Mix Ratio | 100/10 |
| Viscosity (mPa s) | 25 000 |
| Hardness (Shore A) | 12 |
Size: 550gm, 1.1kg, 5.5kg
Data Sheet - MSDS Part A - MSDS Part B
Wacker M4470
Suitable for Low Melt Alloys. Hard, high thermostability & thermal conductivity.
Care with handling, can be brittle.
To order only.
See M4670 for use with Alloys
| Consistency | Pourable Reddish Brown |
| Mix Ratio | 100/3 - 100/4 |
| Viscosity (mPa s) | 10 000 |
| Hardness (Shore A) | 60 |
Size: 1.03kg, 5.15kg
Breakable Glass Silicone
Low strength transparent silicone to simulate broken glass effects, giving the look of very sharp shards, while actually a soft product. Commonly used as an encapsulant. Also useful on PCBs as it can then be cut into to repair faulty connections.
| Consistency | Pourable Transparent |
| Mix Ratio | 100/5 |
| Viscosity (mPa s) | 700 |
| Hardness (Shore A) | 30 |
Size: 525gm, 1.05kg, 5.15kg
Data Sheet - MSDS Part A - MSDS Part B
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