Product

 

 

SILBIONE RT GEL 4642 HV A may be stored at a temperature between -10 °C/ 14 °F and 30 °C/ 86 °F for up to 12 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.

SILBIONE RT GEL 4642 HV A

​SILBIONE RT GEL 4643 A&B is a two component silicone elastomer that crosslinks at room temperature by polyaddition reaction. The polymerisation can be accelerated by heat.

The silicone material is delivered as two low viscous liquid components, which once mixed and cured, transform into an elastic and resistant gel. Polymerisation occurs without formation of heat.

2 Part RTV

Gel

  • ​Very good adhesion to dry skin.
  • Proven biocompatibility.
  • Atraumatic removal.
  • Suitability to coating processes.
  • ​Scar care.
  • Wound contact layer.
  • Adhesive sheets in medical applications.

Asia Pacific;Europe Middle East Africa;Central and South America;North America

 Characteristics_A

 

 

ColorTransparent or cloudy whitePairedCompEuropean Pharmacopea

 Characteristics_B

 

 

ColorTransparent or cloudy whitePairedCompEuropean Pharmacopea

 

 

 Table_Characteristics_A_And_B

 

 

viscosity_0c1789e9-7fae-461e-aa38-a017f6e319b0viscosity_0c1789e9-7fae-461e-aa38-a017f6e319b0Viscosity22 000PairedMixRH 0174m.Pa/s
penetration_a142c699-2b17-4f82-882a-75f6253332edpenetration_a142c699-2b17-4f82-882a-75f6253332edPenetration145PairedMixISO 21371/10mm

 

 

 

 

SILBIONE RT GEL 4642 HV BSILBIONE RT GEL 4642 HV B/our_offer/Product/90061117/90061116/SILBIONE-RT-GEL-4642-HV-B

 

 

1. Mixing the two components

The components A and B are mixed by weight in the above indicated ratio. The mixing can be carried out either by hand or using a low-speed electric or pneumatic mixer to minimise the introduction of air and to avoid any temperature increase.

It is also possible to use a special mixing and dispensing machine for the two silicone components. Further information is available upon request.

2. Degassing

The mixture should be degassed preferably at 30 to 50 mbar to eliminate any entrapped air. If a dispensing machine is used, the two components are degassed separately prior to mixing.

The silicone mixture expands to 3 to 4 times of its initial volume and bubbles rise to the surface. The bubbles progressively disappear and the mixture returns to its initial volume after 5 to 10 minutes. Wait a few minutes to complete the degassing and then flash the vacuum. The silicone is ready for pouring, either by gravity or under low pressure.

Note: Flashing the vacuum once or twice accelerates the degassing. It is recommended to use a container with a high diameter / height ratio.

3. Polymerisation

The system polymerises at 23°C. The curing may be slowed down at lower temperature or accelerated by heat.

Contact with certain materials can inhibit the crosslinking. See list below:

  • natural rubbers vulcanised with sulphur,
  • RTV 2 silicone elastomers catalysed with metal salts, e.g. tin-compounds,
  • PVC stabilised with tin salts and additives,
  • epoxy resins catalysed with amines,

    In case of doubts, it is recommended to test the substrate by applying a small quantity of the mixed silicone on a restricted area.

Important remark: If Part B of SILBIONE RT GEL 4643 A&B comes in contact with strong acids, bases or oxidizing materials, hydrogen could generate. Ensure that containers are properly closed after each use in order to avoid any contamination of the contents.

​1. Mixing the two componentsThe components A and B are mixed by weight in the above indicated ratio. The mixing can be carried out either by hand or using a low-speed electric or pneumatic mixer to minimise the introduction of air and to avoid any temperature increase.It is also possible to use a special mixing and dispensing machine for the two silicone components. Further information is available upon request.2. Degassing The mixture should be degassed preferably at 30 to 50 mbar to eliminate any entrapped air. If a dispensing machine is used, the two components are degassed separately prior to mixing.The silicone mixture expands to 3 to 4 times of its initial volume and bubbles rise to the surface. The bubbles progressively disappear and the mixture returns to its initial volume after 5 to 10 minutes. Wait a few minutes to complete the degassing and then flash the vacuum. The silicone is ready for pouring, either by gravity or under low pressure.Note Flashing the vacuum once or twice accelerates the degassing. It is recommended to use a container with a high diameter / height ratio.3. PolymerisationThe system polymerises at 23°C. The curing may be slowed down at lower temperature or accelerated by heat.Contact with certain materials can inhibit the crosslinking. See list belownatural rubbers vulcanised with sulphur,RTV 2 silicone elastomers catalysed with metal salts, e.g. tin-compounds,PVC stabilised with tin salts and additives,epoxy resins catalysed with amines,In case of doubts, it is recommended to test the substrate by applying a small quantity of the mixed silicone on a restricted area.Important remark If Part B of SILBIONE RT GEL 4643 A&B comes in contact with strong acids, bases or oxidizing materials, hydrogen could generate. Ensure that containers are properly closed after each use in order to avoid any contamination of the contents.

 

 

1. Mixing the two components

The components A and B are mixed by weight in the above indicated ratio. The mixing can be carried out either by hand or using a low-speed electric or pneumatic mixer to minimise the introduction of air and to avoid any temperature increase.

It is also possible to use a special mixing and dispensing machine for the two silicone components. Further information is available upon request.

2. Degassing

The mixture should be degassed preferably at 30 to 50 mbar to eliminate any entrapped air. If a dispensing machine is used, the two components are degassed separately prior to mixing.

The silicone mixture expands to 3 to 4 times of its initial volume and bubbles rise to the surface. The bubbles progressively disappear and the mixture returns to its initial volume after 5 to 10 minutes. Wait a few minutes to complete the degassing and then flash the vacuum. The silicone is ready for pouring, either by gravity or under low pressure.

Note: Flashing the vacuum once or twice accelerates the degassing. It is recommended to use a container with a high diameter / height ratio.

3. Polymerisation

The system polymerises at 23°C. The curing may be slowed down at lower temperature or accelerated by heat.

Contact with certain materials can inhibit the crosslinking. See list below:

  • natural rubbers vulcanised with sulphur,
  • RTV 2 silicone elastomers catalysed with metal salts, e.g. tin-compounds,
  • PVC stabilised with tin salts and additives,
  • epoxy resins catalysed with amines,

    In case of doubts, it is recommended to test the substrate by applying a small quantity of the mixed silicone on a restricted area.

Important remark: If Part B of SILBIONE RT GEL 4643 A&B comes in contact with strong acids, bases or oxidizing materials, hydrogen could generate. Ensure that containers are properly closed after each use in order to avoid any contamination of the contents.

​1. Mixing the two componentsThe components A and B are mixed by weight in the above indicated ratio. The mixing can be carried out either by hand or using a low-speed electric or pneumatic mixer to minimise the introduction of air and to avoid any temperature increase.It is also possible to use a special mixing and dispensing machine for the two silicone components. Further information is available upon request.2. Degassing The mixture should be degassed preferably at 30 to 50 mbar to eliminate any entrapped air. If a dispensing machine is used, the two components are degassed separately prior to mixing.The silicone mixture expands to 3 to 4 times of its initial volume and bubbles rise to the surface. The bubbles progressively disappear and the mixture returns to its initial volume after 5 to 10 minutes. Wait a few minutes to complete the degassing and then flash the vacuum. The silicone is ready for pouring, either by gravity or under low pressure.Note Flashing the vacuum once or twice accelerates the degassing. It is recommended to use a container with a high diameter / height ratio.3. PolymerisationThe system polymerises at 23°C. The curing may be slowed down at lower temperature or accelerated by heat.Contact with certain materials can inhibit the crosslinking. See list belownatural rubbers vulcanised with sulphur,RTV 2 silicone elastomers catalysed with metal salts, e.g. tin-compounds,PVC stabilised with tin salts and additives,epoxy resins catalysed with amines,In case of doubts, it is recommended to test the substrate by applying a small quantity of the mixed silicone on a restricted area.Important remark If Part B of SILBIONE RT GEL 4643 A&B comes in contact with strong acids, bases or oxidizing materials, hydrogen could generate. Ensure that containers are properly closed after each use in order to avoid any contamination of the contents.

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