ELASTOSIL® N189 BLACK is a non-slump, neutral-cure silicone sealant which cures at room temperature under influence of atmospheric moisture.

It exhibits excellent primerless adhesion to many substrates and has good resistance to mineral oil and coolants

ELASTOSIL® N189 BLACK moreover shows excellent heat stability




  • non-corrosive
  • coolant and oil resistant
  • excellent heat resistance up to 200°C, peak temperatures up to 220°C
  • electrically ablative

Specific features of ELASTOSIL® N189 BLACK

  • Coolant resistant
  • Heat resistant
  • Non-slump
  • Oil resistant
  • One-component

Multipurpose grade for sealing and bonding in technical   applications, e.g. CIPG- and FIPG-applications in automotive engines (oil pan, oil separator, valve covers)

ELASTOSIL® N189 BLACK shows good primerless adhesion to many substrates. We recommend to run preliminary tests to optimize conditions for the particular application.

Detailed processing instructions are given in our brochure “ROOM TEMPERATURE VULCANIZING (RTV) SILICONES - MATERIAL AND PROCESSING GUIDELINES


The 'Best use before end' date of each batch is shown on the product label.

Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Sales and support

Wacker Chemical Corporation
3301 Sutton Road
Adrian, MI 49221-9397
United States
+1  888  922-5374 (Phone)

How can we help you?

  • Do you need help in choosing a product or do you require technical support? If so, please contact our experts.
Ask a question


My media

My favorites

My products