DOWSIL SE 9186 Sealant

Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

DOWSIL SE 9186 Sealant

Main features

  • Fast Room-Temperature Sealing Cure
  • Self-Leveling Flowable Placement
  • Controlled-Volatility Silicone Formulation

Product Description

DOWSIL™ SE 9186 Black, Clear or White Adhesive is a one-part, moisture-curing silicone adhesive-sealant that cures at room temperature to a soft, low-stress elastomer. Formulated with controlled silicone volatility and a flowable, self-leveling consistency, this solventless adhesive is engineered specifically for sealing electronic equipment and fixing parts on circuit boards. Its fast tack-free time helps accelerate in-line processing without the need for curing ovens, enhancing overall manufacturing throughput.

Key features

  • Fast room temperature cure: Tack-free in 8 minutes, enabling faster in-line processing without ovens while allowing for heat acceleration if desired.
  • Flowable and self-leveling: Easily fills gaps and levels itself after dispensing, making it ideal for complex circuit board geometries.
  • Controlled volatility: Reduced potential for silicone volatiles protects sensitive electronic modules and components.

Applications / Suitable for

  • Sealing of electronic equipment and modules
  • Parts fixing on circuit boards
  • Sealing against potential stress cracks
Product Family

DOWSIL SE 9186

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Color
The color
Black, Translucent or White
Component System
Describes the number of components that must be supplied, mixed, or activated before application or cure.
1k
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
1.35
Physical Properties
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application
64,000 mPa.s
Mechanical Properties
Elongation
Elongation is the process of lengthening something. It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks. It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
550 %
Physical Properties
Tack-Free Time
8 minutes
Electrical Properties
Dielectric Strength
Dielectric strength is measured in kV per mm and is calculated by the Breakdown voltage divided by the thickness of the tested material. Those two properties go hand in hand and while Breakdown voltage is always thickness dependent, dielectric strength is a general material property. As an example, the dielectric strength of Polyimide is 236 kV/mm. If we place 1mm of Polyimide between two electrodes, it will act as an insulator until the voltage between the electrodes reaches 236 kV. At this point it will start acting as a good conductor, causing sparks, potential punctures and current flow.
23 kV/mm
Volume Resistivity
Volume resistivity, also called volume resistance, bulk resistance or bulk resistivity is a thickness dependent measurement of the resistivity of a material perpendicular to the plane of the surface.
2.0 E+16 Ohms⋅cm

Additional Information

Technical properties

As-supplied / before-processing properties

Typical properties; these values are not intended for use in preparing specifications.

Property Value Unit Method / condition
Color Black, Translucent or White - One-part
Viscosity 64,000 cP -
Tack-Free Time 8 minutes at 25°C
Technical properties

After-processing / final-state properties

Typical properties; these values are not intended for use in preparing specifications.

Property Value Unit Method / condition
Specific Gravity 1.03 - Cured
Durometer 20 Shore A -
Tensile Strength 360 psi -
Elongation 550 % -
Adhesion Lap Shear 185 psi Glass
Dielectric Strength 575 volts/mil -
Volume Resistivity 2.0E+16 ohm*cm -

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