Product

 

 

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.

SILBIONE RT GEL 4743 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.Healthcare USP Class VI

SILBIONE RT GEL 4743 A

SILBIONE RT GEL 4743 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 viscous liquid components, which once mixed and cured, transform into an elastic and resistant adhesive gel. Polymerisation occurs without formation of heat.

2 Part RTV

Gel

Healthcare USP Class VI

  • Proven biocompatibility.
  • Very good adhesion on dry skin.
  • Atraumatic removal.
  • Suitability to coating processes.
  • No bleeding effect.
  • Wound contact layers.
  • Adhesive sheets for medical applications.

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

 Characteristics_A

 

 

Viscosity52500PairedCompISO 2555mPa.s
ColorTransparentPairedCompEuropean Pharmacopea

 Characteristics_B

 

 

ColorTransparentPairedCompEuropean Pharmacopea
Viscosity52500PairedCompISO 2555mPa.s

 

 

 Table_Characteristics_A_And_B

 

 

penetration_a142c699-2b17-4f82-882a-75f6253332edpenetration_a142c699-2b17-4f82-882a-75f6253332edPenetration170PairedMixISO 21371/10mm

 

 

 

 

SILBIONE RT GEL 4743 BSILBIONE RT GEL 4743 B/our_offer/Product/90061591/90061590/SILBIONE-RT-GEL-4743-B

 

 

 

 

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