Product

 

 

For more information, please download the TDS available in PDF format below.BLUESIL ESA 7242 A may be stored for up to 12 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.

BLUESIL ESA 7242 A

Bluesil™ ESA 7242 is a two-component heat curing liquid silicone elastomer that cross-links by a polyaddition reaction. This product is well suited for applications that require a heat curable silicone elastomer for potting of electronics. These products cure without regard to the thickness of the material, and cure rate is controlled by the temperature of cure. For many applications the use of a primer may be required if adhesion is necessary.

Fire Protection;Protection

2 Part RTV

Fluid

​​• Power supplies
• Sensors
• Transformers 
• High Voltage Modulators
• Electrical controls
• Connectors
• High voltage resistor packs
• Relays
• Amplifiers
• Connectors
• Electronics general potting material​​​

North America

 Characteristics_A

 

 

 Characteristics_B

 

 

Viscosity2600PairedCompISO 2555m.Pa/s

 

 

 Table_Characteristics_A_And_B

 

 

specific-gravity_108e6684-e7c4-4e2b-a615-631b494320d3specific-gravity_108e6684-e7c4-4e2b-a615-631b494320d3Specific Gravity1.37PairedMixASTM D 792
elongation_68a5ddf2-2baf-4e60-ac6f-0a8a18a758b2elongation_68a5ddf2-2baf-4e60-ac6f-0a8a18a758b2Elongation140PairedMixASTM D 412%
viscosity_0c1789e9-7fae-461e-aa38-a017f6e319b0viscosity_0c1789e9-7fae-461e-aa38-a017f6e319b0Viscosity2600PairedMixISO 2555mPa.s
hardness_cd523e03-72a3-4261-93f9-36f7bbeeafb1hardness_cd523e03-72a3-4261-93f9-36f7bbeeafb1Hardness50PairedMixASTM D 2240sh.A
tensile-strength_e61eb2e0-4dc3-47b0-a61f-b673f1b265dctensile-strength_e61eb2e0-4dc3-47b0-a61f-b673f1b265dcTensile strength2.9PairedMixASTM D 412MPa

 

 

 

 

BLUESIL ESA 7242 BBLUESIL ESA 7242 B/our_offer/Product/90061006/90061005/BLUESIL-ESA-7242-B

 

 

​Mix Parts A and B separately before blending together. Some filler separation with a small amount of liquid at the top of the container is normal. Once the Parts A and B have been mixed individually in their original containers, both parts ban be mixed together at a 1:1 mix ratio by weight or volume and then the blend can be poured into place over desired electronic assembly.

Bubbles may gather in the material during the mixing and pouring processes. If this is not desired, then the material must be deaired. Deairing can be accomplished by placing the mixed product and part in a vacuum chamber and reducing the pressure over the material until the bubbles rise and break.

Alternatively, another method to add silicone to a desired container without capturing bubbles is to use an automated dispensing machine with a vacuum deairing feature. The Parts A and B will be deaired in individual containers under vacuum and then pumped and mixed through a static mixing head to provide air free mixed product prior to cure.

Cure can b​​e accomplished simply by leaving th​​e product for 24 hours at room temperature (or longer if desired). However, the recommended method for cure is via a heat cure. This can be accomplished via a 90 minute cure at +100°C, 20 minute cure at +120°C, or a 5 minute cure at +150°C. Contact Bluestar Silicones if alternative or more defined temperature cure times are needed. Note: Make sure to account for a lag in the time it takes for parts to heat up. A large heavy part may take longer to cure than is indicated here.

​Mix Parts A and B separately before blending together. Some filler separation with a small amount of liquid at the top of the container is normal. Once the Parts A and B have been mixed individually in their original containers, both parts ban be mixed together at a 11 mix ratio by weight or volume and then the blend can be poured into place over desired electronic assembly. Bubbles may gather in the material during the mixing and pouring processes. If this is not desired, then the material must be deaired. Deairing can be accomplished by placing the mixed product and part in a vacuum chamber and reducing the pressure over the material until the bubbles rise and break.Alternatively, another method to add silicone to a desired container without capturing bubbles is to use an automated dispensing machine with a vacuum deairing feature. The Parts A and B will be deaired in individual containers under vacuum and then pumped and mixed through a static mixing head to provide air free mixed product prior to cure.Cure can b​​e accomplished simply by leaving th​​e product for 24 hours at room temperature (or longer if desired). However, the recommended method for cure is via a heat cure. This can be accomplished via a 90 minute cure at +100°C, 20 minute cure at +120°C, or a 5 minute cure at +150°C. Contact Bluestar Silicones if alternative or more defined temperature cure times are needed. Note Make sure to account for a lag in the time it takes for parts to heat up. A large heavy part may take longer to cure than is indicated here.

 

 

​Mix Parts A and B separately before blending together. Some filler separation with a small amount of liquid at the top of the container is normal. Once the Parts A and B have been mixed individually in their original containers, both parts ban be mixed together at a 1:1 mix ratio by weight or volume and then the blend can be poured into place over desired electronic assembly.

Bubbles may gather in the material during the mixing and pouring processes. If this is not desired, then the material must be deaired. Deairing can be accomplished by placing the mixed product and part in a vacuum chamber and reducing the pressure over the material until the bubbles rise and break.

Alternatively, another method to add silicone to a desired container without capturing bubbles is to use an automated dispensing machine with a vacuum deairing feature. The Parts A and B will be deaired in individual containers under vacuum and then pumped and mixed through a static mixing head to provide air free mixed product prior to cure.

Cure can b​​e accomplished simply by leaving th​​e product for 24 hours at room temperature (or longer if desired). However, the recommended method for cure is via a heat cure. This can be accomplished via a 90 minute cure at +100°C, 20 minute cure at +120°C, or a 5 minute cure at +150°C. Contact Bluestar Silicones if alternative or more defined temperature cure times are needed. Note: Make sure to account for a lag in the time it takes for parts to heat up. A large heavy part may take longer to cure than is indicated here.

​Mix Parts A and B separately before blending together. Some filler separation with a small amount of liquid at the top of the container is normal. Once the Parts A and B have been mixed individually in their original containers, both parts ban be mixed together at a 11 mix ratio by weight or volume and then the blend can be poured into place over desired electronic assembly. Bubbles may gather in the material during the mixing and pouring processes. If this is not desired, then the material must be deaired. Deairing can be accomplished by placing the mixed product and part in a vacuum chamber and reducing the pressure over the material until the bubbles rise and break.Alternatively, another method to add silicone to a desired container without capturing bubbles is to use an automated dispensing machine with a vacuum deairing feature. The Parts A and B will be deaired in individual containers under vacuum and then pumped and mixed through a static mixing head to provide air free mixed product prior to cure.Cure can b​​e accomplished simply by leaving th​​e product for 24 hours at room temperature (or longer if desired). However, the recommended method for cure is via a heat cure. This can be accomplished via a 90 minute cure at +100°C, 20 minute cure at +120°C, or a 5 minute cure at +150°C. Contact Bluestar Silicones if alternative or more defined temperature cure times are needed. Note Make sure to account for a lag in the time it takes for parts to heat up. A large heavy part may take longer to cure than is indicated here.

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 Brochures

 

 

Adhesive Silicones Solutionshttps://silicones.elkem.com/EN/Our_offer/KEC/ListInstance_Brochure_Title/AdhesiveSiliconesSolutions_Brochure.pdfAdhesive Silicones Solutions

 TDS

 

 

 

 

 

 

BLUESIL ESA 7242 BBLUESIL ESA 7242 B/our_offer/Product/90061006/90061005/BLUESIL-ESA-7242-B

 

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