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Momentive RTV159 Red Silicone Adhesive Sealant

Silmid P/N: VAR0000375
From £37.48 (excl VAT) £44.98 (Inc VAT)
Momentive RTV159 is a one-component, ready-to-use, high strength silicone rubber adhesive sealant. Supplied in various sizes.

Product Properties


Product Information

RTV159 is a one-component, ready-to-use, high strength silicone rubber adhesive sealant. This product cures to tough resilient silicone rubber on exposure to atmospheric moisture at room temperature. RTV159 sealant also provides high temperature performance. Both of these products release acetic acid vapors as a by-product of cure.

RTV159 has paste consistency which can be applied to horizontal, vertical and overhead surfaces in applications requiring high strength and temperature performance.

Since these adhesive sealants utilize a moisture cure system, they 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.


  • High strength
  • High temperature resistance
  • High temperature performance
  • Low temperature flexibility
  • One-component
  • Room temperature cure
  • General primer-less adhesion
  • Excellent electrical insulation properties
  • Excellent weather-ability, ozone, and chemical resistance


  • Momentive RTV 159
  • Red Silicone Rubber Adhesive Sealant
  • Various sizes

Shipping information

Orders over £100 placed online will now qualify for FREE UK Mainland delivery*

Orders under £100 placed online for UK Mainland delivery is £12.00*

**Orders requiring Pre 10.00am Next Day delivery has also been lowered from £35.00 to £30.00, orders placed through the office will incur additional charges.** 

International delivery (door to door delivery) is available for selected countries worldwide. Shipping will be automatically calculated based on the weight, location and hazardous nature of the goods. Customers can also choose ex works to arrange their own collection.

Please refer to our delivery page for more information.