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Momentive RTV159 Adhesive Sealant High Strength High Temperature

Click Here To Download Detailed RTV159 Technical Data Sheet

Momentive RTV159 Description

RTV 159 is a one-component, ready-to-use, high strength silicone rubber adhesive sealant. It cures to a tough resilient silicone rubber on exposure to atmospheric moisture at room temperature. RTV157 sealant also provides non high temperature performance. Both of these products release acetic acid vapours as a by-product of cure.

RTV 159  sealant is a paste consistency product which can be applied to horizontal, vertical and overhead surfaces in applications requiring high strength and temperature performance. Since this adhesive sealant utilizes a moisture cure system, it must not be used in thicknesses of greater than 6mm (1/4 in.). Where section depths exceed 6mm (1/4 in.), Momentive Performance Materials one-component, addition cure or two-component silicone rubber compounds are suggested.

These sealants were not designed for and should not be used for applications intended for permanent implantation into the human body.

Momentive RTV159 Available Online

Key Features and Benefits of RTV159

  • High strength
  • High Temperature Performance
  • Low temperature flexibility
  • One-component
  • Room temperature cure
  • General primerless adhesion
  • Excellent electrical insulation properties
  • Excellent weatherability, ozone, and chemical resistance

RTV159 Typical Physical Properties

  • Consistency : Paste
  • Colour : Red
  • Application rate (g/min) : 175
  • Specific Gravity : 1.09
  • Tack free time : 45 minutes

RTV159 Mechanical Cured Properties

  • Tensile Strength, kg/cm2 (lb/in2 ) : 72.1 (1025)
  • Elongation % : 825
  • Hardness Shore A : 28
  • Tear Strength, kg/cm (lb/in) : 17(95)
  • Shear Strength, kg/cm2 (lb/in2)(2) : 72.1(1025)
  • Peel Strength, kg/cm (lb/in)(3) : 10.7 (60)

RTV159 Electrical Cured Properties

  • Dielectric Strength, kv/mm (v/mil) : 19.7 (500)
  • Dielectric Constant @ 60 Hz : 2.6
  • Dissipation Factor @ 60 Hz : 0.0007
  • Volume Resistivity, ohm-cm : 1.1×1015

RTV 159 Important Information

(1) Cure time 3 days at 25°C (77°F) / 50% relative humidity.
(2) Cured 7 days at 25°C (77°F) and 50% relative humidity. Substrate was alclad aluminum
(3) Information is provided for customer convenience only. These properties are not tested on a routine basis.

  • RTV 159 sealant was not designed for and should not be used for applications intended for permanent implantation into the human body.

For more information on the complete range of Silicone adhesives, encapsulants and potting compounds available from Silicone Solutions click here 

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