Product

 

 

For more information, please download the TDS available in PDF format below.BLUESIL RTV 3619 B may be stored at a temperature below 40 °C/ 104 °F for up to 12 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.

BLUESIL RTV 3619 B

​​The BLUESIL RTV 3619 A&B is a two component, silicone elastomer which cures at room temperature by a polyaddition reaction (1:1 ratio).

Release

2 Part RTV

Fluid

  • High fluidity.
  • Excellent reproduction of details.
  • Good mechanical properties.
  • Low linear shrinkage.
  • No release of toxic substances during and after curing.
  • Good release properties with most used reproduction materials.
  • Production of very flexible moulds for manufacturing parts in different materials (resins, gypsum, etc.) with excellent details reproduction.
  • Productions of moulds for cosmetic industry (lipstick, etc.) 

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

 Characteristics_A

 

 

ColorbluePairedComp
Viscosity1500PairedCompNF T 76102mPa.s
AppearanceliquidPairedComp

 Characteristics_B

 

 

ColorcolorlessPairedComp
Viscosity1500PairedCompNF T 76102mPa.s
AppearanceliquidPairedComp

 

 

 Table_Characteristics_A_And_B

 

 

pot-life_0d649a54-7503-4c7c-a047-9d0c4b3e9f6apot-life_0d649a54-7503-4c7c-a047-9d0c4b3e9f6aPot life5PairedMixNF T 77 - 107min
hardness_cd523e03-72a3-4261-93f9-36f7bbeeafb1hardness_cd523e03-72a3-4261-93f9-36f7bbeeafb1Hardness9PairedMixISO 868sh.A

 

 

 

 

BLUESIL RTV 3619 ABLUESIL RTV 3619 A/our_offer/Product/90060897/90060898/BLUESIL-RTV-3619-A

 

 

​Remix each of the two components (part A and B) every time before using.

1. Mixing of the two components

Add 100 parts of BLUESIL RTV 3619 A to 100 parts of BLUESIL RTV 3619 B.

The two components may be intimately mixed either by hand or using a low-speed electric or pneumatic mixer to minimize the introduction of air into the mixture as well as the temperature rise. 

2. Degassing

After mixing base and catalyst, it is recommended to eliminate entrapped air.

If the processing is done with the help of a machine both parts are degassed before mixing.

The BLUESIL RTV 3619 is degassed under a vacuum of 30 to 50 mbar. Under vacuum, the product expands 3 at 4 times its initial volume and forms bubbles on its surface.

These bubbles will disappear gradually and the mixture will sink back down to its initial volume within 5 minutes. Release the vacuum and repeat the operation a few minutes later.

Remark: release the vacuum several times improves the degassing. For easier degassing only fill a recipient to 1/3 of its height.

3. Cross linking

The best curing conditions are at 23°C. The use of products at higher temperatures will reduce the pot life and increase the setting rate. As opposed to this, lower temperatures will increase the pot life and decrease the setting time. It is recommended not to use the product at temperatures below 20°C; under these conditions, the final product performance levels will be difficult to achieve.

At 23°C, the moulds can be demolded after 24 hours. In order to achieve the best possible performance levels from the moulds; it is preferable to wait for 24 hours before using them.

Room temperature curing assures the lowest possible shrinkage, if accelerated cure is desired, mild heat should be preferred. To minimize shrinkage cure the elastomer at maximum temperature of 60 °C for 3-4 hours, higher temperatures will cause higher shrinkage.

Conversely at lower temperature polymerization is much slower, at 20°C 36 hours may be necessary to complete cross-linking.

Be aware that contact with certain materials can inhibit the curing of this RTV:

  • Natural rubbers vulcanized with sulphur

  • Polycondensation RTV catalysed with metal salts

  • PVC stabilizing agents

  • Amine cured epoxies

  • Sulphur containing clays.

If doubts exist it's recommendable to run a quick test with a small quantity of material in order to assess compatibility. Take duly note that cross contamination due to not well cleaned tools or devices is frequently the main causes of inhibition. The best way is to use only dedicated gear when processing polyaddition RTVs.

​Remix each of the two components (part A and B) every time before using.1. Mixing of the two componentsAdd 100 parts of BLUESIL RTV 3619 A to 100 parts of BLUESIL RTV 3619 B. The two components may be intimately mixed either by hand or using a low-speed electric or pneumatic mixer to minimize the introduction of air into the mixture as well as the temperature rise. 2. DegassingAfter mixing base and catalyst, it is recommended to eliminate entrapped air.If the processing is done with the help of a machine both parts are degassed before mixing.The BLUESIL RTV 3619 is degassed under a vacuum of 30 to 50 mbar. Under vacuum, the product expands 3 at 4 times its initial volume and forms bubbles on its surface. These bubbles will disappear gradually and the mixture will sink back down to its initial volume within 5 minutes. Release the vacuum and repeat the operation a few minutes later.Remark release the vacuum several times improves the degassing. For easier degassing only fill a recipient to 1/3 of its height.3. Cross linkingThe best curing conditions are at 23°C. The use of products at higher temperatures will reduce the pot life and increase the setting rate. As opposed to this, lower temperatures will increase the pot life and decrease the setting time. It is recommended not to use the product at temperatures below 20°C; under these conditions, the final product performance levels will be difficult to achieve.At 23°C, the moulds can be demolded after 24 hours. In order to achieve the best possible performance levels from the moulds; it is preferable to wait for 24 hours before using them.Room temperature curing assures the lowest possible shrinkage, if accelerated cure is desired, mild heat should be preferred. To minimize shrinkage cure the elastomer at maximum temperature of 60 °C for 3-4 hours, higher temperatures will cause higher shrinkage.Conversely at lower temperature polymerization is much slower, at 20°C 36 hours may be necessary to complete cross-linking.Be aware that contact with certain materials can inhibit the curing of this RTVNatural rubbers vulcanized with sulphurPolycondensation RTV catalysed with metal saltsPVC stabilizing agentsAmine cured epoxiesSulphur containing clays.If doubts exist it's recommendable to run a quick test with a small quantity of material in order to assess compatibility. Take duly note that cross contamination due to not well cleaned tools or devices is frequently the main causes of inhibition. The best way is to use only dedicated gear when processing polyaddition RTVs.

 

 

​Remix each of the two components (part A and B) every time before using.

1. Mixing of the two components

Add 100 parts of BLUESIL RTV 3619 A to 100 parts of BLUESIL RTV 3619 B.

The two components may be intimately mixed either by hand or using a low-speed electric or pneumatic mixer to minimize the introduction of air into the mixture as well as the temperature rise. 

2. Degassing

After mixing base and catalyst, it is recommended to eliminate entrapped air.

If the processing is done with the help of a machine both parts are degassed before mixing.

The BLUESIL RTV 3619 is degassed under a vacuum of 30 to 50 mbar. Under vacuum, the product expands 3 at 4 times its initial volume and forms bubbles on its surface.

These bubbles will disappear gradually and the mixture will sink back down to its initial volume within 5 minutes. Release the vacuum and repeat the operation a few minutes later.

Remark: release the vacuum several times improves the degassing. For easier degassing only fill a recipient to 1/3 of its height.

3. Cross linking

The best curing conditions are at 23°C. The use of products at higher temperatures will reduce the pot life and increase the setting rate. As opposed to this, lower temperatures will increase the pot life and decrease the setting time. It is recommended not to use the product at temperatures below 20°C; under these conditions, the final product performance levels will be difficult to achieve.

At 23°C, the moulds can be demolded after 24 hours. In order to achieve the best possible performance levels from the moulds; it is preferable to wait for 24 hours before using them.

Room temperature curing assures the lowest possible shrinkage, if accelerated cure is desired, mild heat should be preferred. To minimize shrinkage cure the elastomer at maximum temperature of 60 °C for 3-4 hours, higher temperatures will cause higher shrinkage.

Conversely at lower temperature polymerization is much slower, at 20°C 36 hours may be necessary to complete cross-linking.

Be aware that contact with certain materials can inhibit the curing of this RTV:

  • Natural rubbers vulcanized with sulphur

  • Polycondensation RTV catalysed with metal salts

  • PVC stabilizing agents

  • Amine cured epoxies

  • Sulphur containing clays.

If doubts exist it's recommendable to run a quick test with a small quantity of material in order to assess compatibility. Take duly note that cross contamination due to not well cleaned tools or devices is frequently the main causes of inhibition. The best way is to use only dedicated gear when processing polyaddition RTVs.

​Remix each of the two components (part A and B) every time before using.1. Mixing of the two componentsAdd 100 parts of BLUESIL RTV 3619 A to 100 parts of BLUESIL RTV 3619 B. The two components may be intimately mixed either by hand or using a low-speed electric or pneumatic mixer to minimize the introduction of air into the mixture as well as the temperature rise. 2. DegassingAfter mixing base and catalyst, it is recommended to eliminate entrapped air.If the processing is done with the help of a machine both parts are degassed before mixing.The BLUESIL RTV 3619 is degassed under a vacuum of 30 to 50 mbar. Under vacuum, the product expands 3 at 4 times its initial volume and forms bubbles on its surface. These bubbles will disappear gradually and the mixture will sink back down to its initial volume within 5 minutes. Release the vacuum and repeat the operation a few minutes later.Remark release the vacuum several times improves the degassing. For easier degassing only fill a recipient to 1/3 of its height.3. Cross linkingThe best curing conditions are at 23°C. The use of products at higher temperatures will reduce the pot life and increase the setting rate. As opposed to this, lower temperatures will increase the pot life and decrease the setting time. It is recommended not to use the product at temperatures below 20°C; under these conditions, the final product performance levels will be difficult to achieve.At 23°C, the moulds can be demolded after 24 hours. In order to achieve the best possible performance levels from the moulds; it is preferable to wait for 24 hours before using them.Room temperature curing assures the lowest possible shrinkage, if accelerated cure is desired, mild heat should be preferred. To minimize shrinkage cure the elastomer at maximum temperature of 60 °C for 3-4 hours, higher temperatures will cause higher shrinkage.Conversely at lower temperature polymerization is much slower, at 20°C 36 hours may be necessary to complete cross-linking.Be aware that contact with certain materials can inhibit the curing of this RTVNatural rubbers vulcanized with sulphurPolycondensation RTV catalysed with metal saltsPVC stabilizing agentsAmine cured epoxiesSulphur containing clays.If doubts exist it's recommendable to run a quick test with a small quantity of material in order to assess compatibility. Take duly note that cross contamination due to not well cleaned tools or devices is frequently the main causes of inhibition. The best way is to use only dedicated gear when processing polyaddition RTVs.

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