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ELASTOSIL® M 4601 A/B

1 of 23 products in this brand
ELASTOSIL® M 4601 A/B is a room-temperature-curing silicone rubber (RTV-2) that is pourable and utilizes addition-curing. It consists of two components and vulcanizes at room temperature. The main application of ELASTOSIL® M 4601 A/B is in making shrink-free molds with excellent reproduction accuracy. This grade is also compliant with FDA and BfR regulations for food contact applications.

Polymer Name: Silicone Elastomer

End Uses: Mold Making

Features: Excellent Flowability, Fast Curing, Food Contact Acceptable, Good Flow, Good Mechanical Properties, Good Shrinkage Resistance, Good Tear Strength, Long Potlife, Low Hardness, Low Shrinkage, Low Viscosity, Pourable, Room Temperature Vulcanizing

Tear Strength: 30.0 - 30.0 kN/m

Technical Data Sheet
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Identification & Functionality

Chemical Family
Polymer Name
Technologies

Features & Benefits

Special Features
  • Addition-curing
  • BfR compliant
  • FDA compliant
  • Low viscosity
  • No shrinkage
  • Two-component

Applications & Uses

Markets
Plastics & Elastomers End Uses
Application Details
  • Due to the outstanding resistance to casting resins as well as the superior mechanical properties, ELASTOSIL M 4601 A/B is especially suitable for all molds of models with extensive undercuts that are to be reproduced in casting resins.
  • As a low-Shore addition-curing RTV-2 silicone rubber that cures without undergoing dimensional shrinkage, ELASTOSIL® M 4601 A/B is also extremely suitable for casting all other common reproduction materials, particularly if absolutely accurate copies of models with pronounced undercuts are required.

Processing

  • The platinum catalyst is in component B.
  • A and B components may only be used together if they have the same batch number.
Applications
  • Making shrink-free molds with excellent reproduction accuracy.
  • Automotive molding
  • Reproduction Molding

Properties

Catalyst Properties
ValueUnitsTest Method / Conditions
Curing Time (tack-free)12hours-
Dynamic Viscosity (at 23°C)10000mPa·sISO 3219
Mix Ratio (A:B)9:1parts by weight-
Processing Time (up to 60000 mPa.s)90minutes-
Cured Properties
ValueUnitsTest Method / Conditions
Density (in water, at 23°C)1.13g/cm³ISO 2781
Elongation (at break)700%ISO 37
Linear Shrinkagemax. 0.1 %-
Shore Hardness A28-ISO 868
Tear Strengthmin. 30 N/mmASTM D 624 B
Tensile Strength6.5N/mm²ISO 37
Uncured Properties
ValueUnitsTest Method / Conditions
Density (at 23°C, Componenet A)1.14g/cm³-
Density (at 23°C, Componenet B)1.01g/cm³-
Dynamic Viscosity (Component A, at 23°C, after stirring)15000mPa·sISO 3219
Dynamic Viscosity (Component B, at 23°C, after stirring)800mPa·sISO 3219
Properties
  • Very good flow
  • Low viscosity
  • Fast and non-shrink cure at room temperature which can be accelerated considerably by the application of heat.
  • Low Shore A hardness (approx. 28)
  • High tear strength
  • Excellent long-term stability of the mechanical properties of the cured rubber.
  • Outstanding resistance to common casting resins particularly polyurethane.
Note

Cured properties are vulcanized after 24 h at 23 °C.

Regulatory & Compliance

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • Asia
  • Europe
  • Latin America
  • Middle East
  • North America
  • Oceania