Silicone Elastomers A

Silicone Elastomers A is a pourable, addition-curing RTV-2 silicone rubber that cures at room temperature.

Brand: Silicone Elastomers (3 products)

Polymer Name: Silicone Elastomer

End Uses: Automotive Interior Parts, Mold Making, Synthetic Leather, Tires

Features: Excellent Flowability, Fast Curing, Good Mechanical Properties, Good Shrinkage Resistance, Good Tear Strength, Low Hardness, Pourable, Room Temperature Vulcanizing

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Features & Benefits

Materials Features
Specific Features
  • Addition Curing
  • Fast curing at room temperature
  • Flowable
  • No chemical shrinkage
  • Two-component

Applications & Uses

Markets
Applications
Cure Method
Plastics & Elastomers End Uses
Applications
  • Making molds for (concrete) casting.
  • Automotive molding
  • Reproduction Molding
Application Details
  • Due to its good resistance to all common reproduction materials. e.g. casting resins, concrete, as well as the superior mechanical properties, CENUSIL® M 820 A/B is especially suitable for all molds of models with extensive undercuts.
  • As a low-Shore A addition silicone rubber that cures without undergoing dimensional shrinkage, CENUSIL® M 820 A/B is also suitable if absolutely accurate copies of models are required.

Properties

Catalyst Properties
ValueUnitsTest Method / Conditions
Pot Life (A+B, at 23°C)40minutesDIN EN ISO 2555
Mix Ratio (A:B)1:1 parts by weight-
Demoldable (A+B, at 23°C)4hours-
Cured Properties
ValueUnitsTest Method / Conditions
Tensile Strength4N/mm²ISO 37 Type 1
Shore Hardness A20Shore ADIN ISO 48-4
Elongation (at break)500%ISO 37 Type 1
Uncured Properties
ValueUnitsTest Method / Conditions
Dynamic Viscosity (Component B, at 23°C)6000mPa·sISO 3219
Dynamic Viscosity (Component A, at 23°C)6000mPa·sISO 3219
Density (at 23°C, Componenet B)1.05g/cm³DIN EN ISO 2811-1
Density (at 23°C, Componenet A)1.05g/cm³DIN EN ISO 2811-1
Properties
  • Excellent flowabily
  • High tear strength
  • Low hardness /Shore A 20)
  • Mixing ratio of 1:1 for straightforward processing
  • Fast and non shrink cure at room temperature which can be accelerated considerably by application of heat
  • Excellent long-term stability of the mechanical properties of the vulcanizate
  • Good resistance to common reproduction materials

Regulatory & Compliance

Safety & Health

Safety Notes

Components A and B of the additions-curing grades Silicone Elastomers A contain only constituents that over many years have proved to be neither toxic nor aggressive. Special handling precautions are therefore not required, i.e., only the general industrial hygiene regulations regulations apply.

Packaging & Availability

Country Availability
Packaging Type
Regional Availability
  • Africa
  • Asia
  • Europe
  • Latin America
  • North America
  • Oceania
Packaging Information
  • Silicone Elastomers A KG HOBBOCK PE
  • Silicone Elastomers A 200 KG DRUM SB
  • Silicone Elastomers A 20 KG HOBBOCK SB
  • Silicone Elastomers A 200 KG DRUM SB