DOWSIL HC 1100

Harmonization Code : 8473.30.80.00 | Parts and accessories (other than covers, carrying cases and the like) suitable for use solely or principally with machines of headings 8470 to 8472 ; Parts and accessories of the machines of heading 8471 ; Other; Other

DOWSIL HC1100

Main features

  • 2,375 cP Coating Viscosity
  • 190% Cured Elongation
  • 23 kV/mm Dielectric Strength

Product Description

DOWSIL HC 1100 Conformal Coating is a one-part, gray, controlled-volatility silicone coating for rigid and flexible circuit boards and electronic components. Typical viscosity is 2,375 cP, fluidity is 72.4 mm, and tack-free time is 9 minutes at 25 deg C. Room-temperature full-cure time is 0.5 hours at 25 deg C, 50% RH, and 0.3 mm thickness. The cured coating has Shore A 22 hardness, 190% elongation, 0.8 MPa tensile strength, and 23 kV/mm dielectric strength. Application methods include spray, brush, flow, automated pattern coating, and dip coating with special precautions.

Key features

  • Viscosity and fluidity: Typical viscosity is 2,375 cP and fluidity is 72.4 mm.
  • Conditioned full-cure time: Room-temperature full-cure time is 0.5 hours at 25 deg C, 50% RH, and 0.3 mm thickness.
  • Dielectric strength: Typical dielectric strength is 23 kV/mm.

Applications

Rigid and flexible circuit boards; connectors; sensors; spot protection on components; relays; high-tolerance devices.

Product Family

DOWSIL HC 1100

Loading pricing…
TDS, SDS & Technical Documents

Technical Specifications

General Properties
Color
The color
Gray
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.
1.08
Physical Properties
Tack-Free Time
9 minutes
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
2,375 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.
190 %
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.
2.0E+15 Ohms⋅cm

Additional Information

Technical properties

Before-processing coating properties

PropertyValueUnitMethod / condition
Viscosity2,375cPTypical
Fluidity72.4mmTypical
Tack-free time9minTypical; at 25 deg C
Low molecular siloxane content, D4-D1040ppmTypical
Low molecular siloxane content, D4-D20230ppmTypical
Room-temperature full-cure time0.5hours25 deg C; 50% RH; 0.3 mm thickness
Nonvolatile content97.4%Typical
Technical properties

Cured coating properties

PropertyValueUnitMethod / condition
Durometer22Shore ATypical
Dielectric strength23kV/mmTypical
Volume resistivity2.0 x 10^15ohm cmTypical
Dielectric constant3.2Typical; 1 MHz
Dissipation factor0.003Typical; 1 MHz
Tensile strength0.8MPaTypical
Tensile modulus0.4MPaTypical
Elongation190%Typical

Leading Brands Trust in Our Products and Services

Products that Perform| Knowledge that Serves| Service that Delivers