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.

Good product for taking molds from items with moderate undercuts.

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

ELASTOSIL® M RTV-2 Silicone Rubber

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.

PRODUCT DESCRIPTION
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 - To order only

Suitable for Low Melt Alloys.

This is a Firm silicone, with high thermostability & thermal conductivity.

Care should be taken with handling, as this cured material can be brittle.

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

Data Sheet - MSDS

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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